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10-Bit, 200 MSPS/250 MSPS 1.8 V Analog-to-Digital Converter
AD9601
Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2007 Analog Devices, Inc. All rights reserved.
FEATURES SNR = 59.4 dBFS @ fIN up to 70 MHz @ 250 MSPS ENOB of 9.7 @ fIN up to 70 MHz @ 250 MSPS (−1.0 dBFS) SFDR = 81 dBc @ fIN up to 70 MHz @ 250 MSPS (−1.0 dBFS) Excellent linearity
DNL = 0.2 LSB typical INL = 0.2 LSB typical
CMOS outputs Single data port at up to 250 MHz Demultiplexed dual port at up to 2 × 125 MHz
700 MHz full power analog bandwidth On-chip reference, no external decoupling required Integrated input buffer and track-and-hold Low power dissipation
274 mW @ 200 MSPS 322 mW @ 250 MSPS
Programmable input voltage range 1.0 V to 1.5 V, 1.25 V nominal
1.8 V analog and digital supply operation Selectable output data format (offset binary, twos
complement, Gray code) Clock duty cycle stabilizer Integrated data capture clock
APPLICATIONS Wireless and wired broadband communications Cable reverse path Communications test equipment Radar and satellite subsystems Power amplifier linearization
FUNCTIONAL BLOCK DIAGRAM AGNDPWDNRBIAS AVDD (1.8V)
VIN+VIN–
CML
TRACK-AND-HOLD
REFERENCE
ADC10-BITCORE
OUTPUTSTAGING
LVDS
CLK+CLK–
CLOCKMANAGEMENT
SERIAL PORT
RESET SCLK SDIO CSB
DCO–DCO+
OVRBOVRA
Dx9 TO Dx0
DRGNDDRVDD
10 10
AD9601
0710
0-00
1
Figure 1.
GENERAL DESCRIPTION The AD9601 is a 10-bit monolithic sampling analog-to-digital converter optimized for high performance, low power, and ease of use. The product operates at up to a 250 MSPS conversion rate and is optimized for outstanding dynamic performance in wideband carrier and broadband systems. All necessary func-tions, including a track-and-hold (T/H) and voltage reference, are included on the chip to provide a complete signal conversion solution.
The ADC requires a 1.8 V analog voltage supply and a differen-tial clock for full performance operation. The digital outputs are CMOS compatible and support either twos complement, offset binary format, or Gray code. A data clock output is available for proper output data timing.
Fabricated on an advanced CMOS process, the AD9601 is available in a 56-lead LFCSP, specified over the industrial temperature range (−40°C to +85°C).
PRODUCT HIGHLIGHTS 1. High Performance—Maintains 59.4 dBFS SNR @ 250 MSPS
with a 70 MHz input.
2. Low Power—Consumes only 322 mW @ 250 MSPS.
3. Ease of Use—CMOS output data and output clock signal allow interface to current FPGA technology. The on-chip reference and sample-and-hold provide flexibility in system design. Use of a single 1.8 V supply simplifies system power supply design.
4. Serial Port Control—Standard serial port interface supports various product functions, such as data formatting, power-down, gain adjust, and output test pattern generation.
5. Pin-Compatible Family—12-bit pin-compatible family offered as the AD9626.
AD9601* PRODUCT PAGE QUICK LINKSLast Content Update: 02/23/2017
COMPARABLE PARTSView a parametric search of comparable parts.
EVALUATION KITS• AD9601 Evaluation Board
DOCUMENTATIONApplication Notes
• AN-1142: Techniques for High Speed ADC PCB Layout
• AN-282: Fundamentals of Sampled Data Systems
• AN-501: Aperture Uncertainty and ADC System Performance
• AN-586: LVDS Outputs for High Speed A/D Converters
• AN-715: A First Approach to IBIS Models: What They Are and How They Are Generated
• AN-737: How ADIsimADC Models an ADC
• AN-741: Little Known Characteristics of Phase Noise
• AN-742: Frequency Domain Response of Switched-Capacitor ADCs
• AN-756: Sampled Systems and the Effects of Clock Phase Noise and Jitter
• AN-807: Multicarrier WCDMA Feasibility
• AN-808: Multicarrier CDMA2000 Feasibility
• AN-812: MicroController-Based Serial Port Interface (SPI) Boot Circuit
• AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs
• AN-835: Understanding High Speed ADC Testing and Evaluation
• AN-878: High Speed ADC SPI Control Software
• AN-905: Visual Analog Converter Evaluation Tool Version 1.0 User Manual
Data Sheet
• AD9601: 10-Bit, 200 MSPS/250 MSPS 1.8 V Analog-to-Digital Converter Data Sheet
TOOLS AND SIMULATIONS• AD9601 IBIS Models
REFERENCE MATERIALSTechnical Articles
• MS-2210: Designing Power Supplies for High Speed ADC
DESIGN RESOURCES• AD9601 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
DISCUSSIONSView all AD9601 EngineerZone Discussions.
SAMPLE AND BUYVisit the product page to see pricing options.
TECHNICAL SUPPORTSubmit a technical question or find your regional support number.
DOCUMENT FEEDBACKSubmit feedback for this data sheet.
This page is dynamically generated by Analog Devices, Inc., and inserted into this data sheet. A dynamic change to the content on this page will not trigger a change to either the revision number or the content of the product data sheet. This dynamic page may be frequently modified.
AD9601
Rev. 0 | Page 2 of 32
TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3
DC Specifications ......................................................................... 3 AC Specifications.......................................................................... 4 Digital Specifications ................................................................... 5 Switching Specifications .............................................................. 6 Timing Diagrams.......................................................................... 7
Absolute Maximum Ratings............................................................ 8 Thermal Resistance ...................................................................... 8 ESD Caution.................................................................................. 8
Pin Configurations and Function Descriptions ........................... 9 Equivalent Circuits ......................................................................... 11 Typical Performance Characteristics ........................................... 12 Theory of Operation ...................................................................... 16
Analog Input and Voltage Reference ....................................... 16
Clock Input Considerations...................................................... 17 Power Dissipation and Power-Down Mode ........................... 18 Digital Outputs ........................................................................... 18 Timing—Single Port Mode....................................................... 19 Timing—Interleaved Mode....................................................... 19
Layout Considerations................................................................... 20 Power and Ground Recommendations ................................... 20 CML ............................................................................................. 20 RBIAS........................................................................................... 20 AD9601 Configuration Using the SPI ..................................... 20 Hardware Interface..................................................................... 21 Configuration Without the SPI ................................................ 21
Memory Map .................................................................................. 23 Reading the Memory Map Table.............................................. 23 Reserved Locations .................................................................... 23 Default Values ............................................................................. 23 Logic Levels ................................................................................. 23
Evaluation Board ............................................................................ 25 Outline Dimensions ....................................................................... 31
Ordering Guide .......................................................................... 31
REVISION HISTORY 11/07—Revision 0: Initial Version
AD9601
Rev. 0 | Page 3 of 32
SPECIFICATIONS DC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, TMIN = −40°C, TMAX = +85°C, fIN = −1.0 dBFS, full scale = 1.25 V, single port output mode, DCS enabled, unless otherwise noted.
Table 1. AD9601-200 AD9601-250 Parameter1 Temp Min Typ Max Min Typ Max Unit RESOLUTION 10 10 Bits ACCURACY
No Missing Codes Full Guaranteed Guaranteed Offset Error 25°C 4.0 4.0 mV Full −12 +12 −12 +12 mV Gain Error 25°C 1.4 1.4 % FS Full −2.1 +4.5 −2.1 +4.5 % FS Differential Nonlinearity (DNL) 25°C 0.2 0.2 LSB Full −0.5 +0.5 −0.5 +0.5 LSB Integral Nonlinearity (INL) 25°C 0.2 0.2 LSB Full −0.5 +0.5 −0.5 +0.5 LSB
TEMPERATURE DRIFT Offset Error Full 8 8 μV/°C Gain Error Full 0.021 0.021 %/°C
ANALOG INPUTS (VIN+, VIN−) Differential Input Voltage Range2 Full 0.98 1.25 1.5 0.98 1.25 1.5 V p-p Input Common-Mode Voltage Full 1.4 1.4 V Input Resistance (Differential) Full 4.3 4.3 kΩ Input Capacitance 25°C 2 2 pF
POWER SUPPLY AVDD Full 1.7 1.8 1.9 1.7 1.8 1.9 V DRVDD Full 1.7 1.8 1.9 1.7 1.8 1.9 V Supply Currents
IAVDD3 Full 133 142 157 167 mA
IDRVDD3/Single Port Mode4 Full 19 20 22 24 mA
IDRVDD3/Interleaved Mode5 Full 16 18 mA
Power Dissipation3 Full mW Single Port Mode4 Full 274 291 322 344 mW
Interleaved Mode5 Full 268 315 mW Power-Down Mode Supply Currents
IAVDD Full 40 40 μA IDRVDD Full 170 170 22 μA
Standby Mode Supply Currents IAVDD Full 19 19 mA IDRVDD Full 170 170 22 μA
1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions and how these tests were completed. 2 The input range is programmable through the SPI, and the range specified reflects the nominal values of each setting. See the Memory Map section. 3 IAVDD and IDRVDD are measured with a −1 dBFS, 10.3 MHz sine input at rated sample rate. 4 Single data rate mode; this is the default mode of the AD9601. 5 Interleaved mode; user-programmable feature. See the Memory Map section.
AD9601
Rev. 0 | Page 4 of 32
AC SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, TMIN = −40°C, TMAX = +85°C, fIN = −1.0 dBFS, full scale = 1.25 V, DCS enabled, unless otherwise noted. 1
Table 2. AD9601-200 AD9601-250 Parameter2 Temp Min Typ Max Min Typ Max Unit SNR
fIN = 10 MHz 25°C 59.5 59.4 dB Full 58.5 57.8 dB fIN = 70 MHz 25°C 59.3 59.4 dB
SINAD fIN = 10 MHz 25°C 59.5 59.4 dB Full 58.5 57.7 dB fIN = 70 MHz 25°C 59.3 59.4 dB
EFFECTIVE NUMBER OF BITS (ENOB) fIN = 10 MHz 25°C 9.6 9.7 Bits fIN = 70 MHz 25°C 9.6 9.7 Bits
WORST HARMONIC (SECOND OR THIRD) fIN = 10 MHz 25°C 84 84 dBc Full 77 72 dBc fIN = 70 MHz 25°C 78 81 dBc
WORST OTHER (SFDR EXCLUDING SECOND AND THIRD) fIN = 10 MHz 25°C 88 86 dBc Full 80 75 dBc fIN = 70 MHz 25°C 87 85 dBc
TWO-TONE IMD 170.2 MHz/171.3 MHz @ −7 dBFS 25°C 81 81 dBFS
ANALOG INPUT BANDWIDTH 25°C 700 700 MHz 1 All ac specifications tested by driving CLK+ and CLK− differentially. 2 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions and how these tests were completed.
AD9601
Rev. 0 | Page 5 of 32
DIGITAL SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, TMIN = −40°C, TMAX = +85°C, fIN = −1.0 dBFS, full scale = 1.25 V, DCS enabled, unless otherwise noted.
Table 3. AD9601-200 AD9601-250 Parameter1 Temp Min Typ Max Min Typ Max Unit CLOCK INPUTS
Logic Compliance Full CMOS/LVDS/LVPECL CMOS/LVDS/LVPECL Internal Common-Mode Bias Full 1.2 1.2 V Differential Input Voltage Full 0.2 6 0.2 6 V p-p Input Voltage Range Full AVDD − 0.3 AVDD + 1.6 AVDD − 0.3 AVDD + 1.6 V Input Common-Mode Range Full 1.1 AVDD 1.1 AVDD V High Level Input Voltage (VIH) Full 1.2 3.6 1.2 3.6 V Low Level Input Voltage (VIL) Full 0 0.8 0 0.8 V Input Resistance (Differential) Full 16 20 24 16 20 24 kΩ Input Capacitance Full 4 4 pF
LOGIC INPUTS Logic 1 Voltage Full 0.8 × VDD 0.8 × VDD V Logic 0 Voltage Full 0.2 × AVDD 0.2 × AVDD V Logic 1 Input Current (SDIO) Full 0 0 μA Logic 0 Input Current (SDIO) Full −60 −60 μA Logic 1 Input Current
(SCLK, PDWN, CSB, RESET) Full 55 50 μA
Logic 0 Input Current (SCLK, PDWN, CSB, RESET)
Full 0 0 μA
Input Capacitance 25°C 4 4 pF LOGIC OUTPUTS
High Level Output Voltage Full DRVDD − 0.05 DRVDD − 0.05 V Low Level Output Voltage Full GND + 0.05 GND + 0.05 V Output Coding Twos complement, Gray code, or offset binary (default)
1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions and how these tests were completed.
AD9601
Rev. 0 | Page 6 of 32
SWITCHING SPECIFICATIONS AVDD = 1.8 V, DRVDD = 1.8 V, TMIN = −40°C, TMAX = +85°C, fIN = −1.0 dBFS, full scale = 1.25 V, DCS enabled, unless otherwise noted.
Table 4. AD9601-200 AD9601-250 Parameter (Conditions) Temp Min Typ Max Min Typ Max Unit Maximum Conversion Rate Full 200 250 MSPS Minimum Conversion Rate Full 40 40 MSPS
CLK+ Pulse Width High (tCH) Full 2.15 2.4 1.8 2.0 ns CLK+ Pulse Width Low (tCL) Full 2.15 2.4 1.8 2.0 ns Output, Single Data Port Mode1
Data Propagation Delay (tPD) 25°C 3.7 3.7 ns DCO Propagation Delay (tCPD) 25°C 3.4 3.4 ns Data to DCO Skew (tSKEW) Full 0 0.3 0.55 0 0.3 0.55 ns Latency Full 6 6 Cycles
Output, Interleaved Mode2 Data Propagation Delay (tPDA, tPDB) 25°C 3.5 3.5 ns DCO Propagation Delay (tCPDA, tCPDB) 25°C 3.0 3.0 ns Data to DCO Skew (tSKEWA, tSKEWB ) Full 0 0.5 1.1 0 0.5 1.1 ns Latency Full 6 6 Cycles
Standby Recovery 25°C 250 250 ns Power-Down Recovery 50 50 μs Aperture Delay (tA) 25°C 0.1 0.1 ns Aperture Uncertainty (Jitter, tJ) 25°C 0.2 0.2 ps rms 1 See Figure 2. 2 See Figure 3.
AD9601
Rev. 0 | Page 7 of 32
TIMING DIAGRAMS
CLK+
DCO+
N
CLK–
DAX N – 6 N – 5 N – 4 N – 3 N – 2 N – 1 N N + 1 N + 2N – 7
DCO–
N + 5N + 6 N + 7
N + 8N + 4
N + 3N + 2N + 1
tA
tPD
tSKEW
tCPD
tCLK = 1/fCLK
0710
0-04
2
Figure 2. Single Port Mode
CLK+
DCO–
N
N – 6
N – 5
N – 4
N – 3
N – 2
N – 1
N
N + 1
N + 2
N – 7
CLK–
DCO+
DAX
DBX
N + 1
N + 8
N + 7N + 6N + 5
N + 4
N + 3N + 2
tCPDA
tSKEWB
tPDB
tCPDB
tPDA
tSKEWA
tA
tCLK = 1/fCLK
0710
0-04
3
Figure 3. Interleaved Mode
AD9601
Rev. 0 | Page 8 of 32
ABSOLUTE MAXIMUM RATINGS Table 5.
Parameter Rating ELECTRICAL
AVDD to AGND −0.3 V to +2.0 V DRVDD to DRGND −0.3 V to +2.0 V AGND to DRGND −0.3 V to +0.3 V AVDD to DRVDD −2.0 V to +2.0 V Dx0 Through Dx9 to DRGND −0.3 V to DRVDD + 0.3 V DCO+/DCO− to DRGND −0.3 V to DRVDD + 0.3 V OVRA/OVRB to DGND −0.3 V to DRVDD + 0.3 V CLK+ to AGND −0.3 V to +3.6 V CLK− to AGND −0.3 V to +3.6 V VIN+ to AGND −0.3 V to AVDD + 0.2 V VIN− to AGND −0.3 V to AVDD + 0.2 V SDIO/DCS to DGND −0.3 V to DRVDD + 0.3 V PDWN to AGND −0.3 V to +3.6 V CSB to AGND −0.3 V to +3.6 V SCLK/DFS to AGND −0.3 V to +3.6 V
ENVIRONMENTAL Storage Temperature Range −65°C to +125°C Operating Temperature Range −40°C to +85°C Lead Temperature
(Soldering, 10 sec) 300°C
Junction Temperature 150°C
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
THERMAL RESISTANCE The exposed paddle must be soldered to the ground plane for the LFCSP package. Soldering the exposed paddle to the customer board increases the reliability of the solder joints, maximizing the thermal capability of the package.
Table 6. Package Type θJA θJC Unit 56-Lead LFCSP (CP-56-2) 30.4 2.9 °C/W
Typical θJA and θJC are specified for a 4-layer board in still air. Airflow increases heat dissipation, effectively reducing θJA. In addition, metal in direct contact with the package leads from metal traces, and through holes, ground, and power planes reduces the θJA.
ESD CAUTION
AD9601
Rev. 0 | Page 9 of 32
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
PIN 1INDICATOR
1DA42DA53DA64DA75DA86(MSB) DA97DRVDD8DRGND9OVRA
10NIC11NIC12(LSB) DB013DB114DB2
35 VIN+36 VIN–37 AVDD38 AVDD39 AVDD40 CML41 AVDD42 AVDD
34 AVDD33 AVDD32 AVDD31 RBIAS30 AVDD29 PWDN
15D
B3
16D
B4
17D
B5
19D
B7
21(M
SB) D
B9
20D
B8
22O
VRB
23D
RG
ND
24D
RVD
D25
SDIO
/DC
S26
SCLK
/DFS
27C
SB28
RES
ET
18D
B6
45C
LK–
46A
VDD
47D
RVD
D48
DR
GN
D49
DC
O–
50D
CO
+51
NIC
52N
IC53
DA
0 (L
SB)
54D
A1
44C
LK+
43A
VDD
TOP VIEW(Not to Scale)
PIN 0 (EXPOSED PADDLE) = AGND
AD9601
55D
A2
56D
A3
0710
0-00
2
Figure 4. Pin Configuration
Table 7. Single Data Rate Mode Pin Function Descriptions Pin No. Mnemonic Description 30, 32, 33, 34, 37, 38, 39, 41, 42, 43, 46
AVDD 1.8 V Analog Supply.
7, 24, 47 DRVDD 1.8 V Digital Output Supply. 0 AGND1 Analog Ground. 8, 23, 48 DRGND1 Digital Output Ground. 35 VIN+ Analog Input—True. 36 VIN− Analog Input—Complement. 40 CML Common-Mode Output Pin. Enabled through the SPI, this pin provides a reference for the
optimized internal bias voltage for VIN+/VIN−. 44 CLK+ Clock Input—True. 45 CLK− Clock Input—Complement. 31 RBIAS Set Pin for Chip Bias Current. (Place 1% 10 kΩ resistor terminated to ground.)
Nominally 0.5 V. 28 RESET CMOS-Compatible Chip Reset (Active Low). 25 SDIO/DCS Serial Port Interface (SPI) Data Input/Output (Serial Port Mode); Duty Cycle Stabilizer
Select (External Pin Mode). 26 SCLK/DFS Serial Port Interface Clock (Serial Port Mode); Data Format Select Pin (External Pin Mode). 27 CSB Serial Port Chip Select (Active Low). 29 PWDN Chip Power-Down. 49 DCO− Data Clock Output—Complement. 50 DCO+ Data Clock Output—True. 53 DA0 (LSB) Output Port A Output Bit 0 (LSB). 54 DA1 Output Port A Output Bit 1. 55 DA2 Output Port A Output Bit 2. 56 DA3 Output Port A Output Bit 3. 1 DA4 Output Port A Output Bit 4. 2 DA5 Output Port A Output Bit 5. 3 DA6 Output Port A Output Bit 6.
AD9601
Rev. 0 | Page 10 of 32
Pin No. Mnemonic Description 4 DA7 Output Port A Output Bit 7. 5 DA8 Output Port A Output Bit 8. 6 DA9 (MSB) Output Port A Output Bit 9 (MSB). 10, 11, 51, 52 NIC Not internally connected. 9 OVRA Output Port A Overrange Output Bit. 12 DB0 (LSB) Output Port B Output Bit 0 (LSB). 13 DB1 Output Port B Output Bit 1. 14 DB2 Output Port B Output Bit 2. 15 DB3 Output Port B Output Bit 3. 16 DB4 Output Port B Output Bit 4. 17 DB5 Output Port B Output Bit 5. 18 DB6 Output Port B Output Bit 6. 19 DB7 Output Port B Output Bit 7. 20 DB8 Output Port B Output Bit 8. 21 DB9 (MSB) Output Port B Output Bit 9 (MSB). 22 OVRB Output Port B Overrange Output Bit. 1 AGND and DRGND should be tied to a common quiet ground plane.
AD9601
Rev. 0 | Page 11 of 32
EQUIVALENT CIRCUITS
1.2V10kΩ 10kΩ
CLK+ CLK–
AVDD
0710
0-00
3
Figure 5. Clock Inputs
VIN+
AVDD
BUF
VIN–
AVDD
BUF
2kΩ
2kΩ
BUF
AVDD
VCML~1.4V
0710
0-00
4
Figure 6. Analog Inputs (VCML = ~1.4 V)
SCLK/DFSRESETPDWN
1kΩ
30kΩ
0710
0-00
5
Figure 7. Equivalent SCLK/DFS, RESET, PDWN Input Circuit
CSB1kΩ26kΩ
AVDD
0710
0-00
6
Figure 8. Equivalent CSB Input Circuit
0710
0-04
4
DRVDD
DRGND
Figure 9. CMOS Outputs (Dx, OVRA, OVRB, DCO+, DCO−)
SDIO/DCS1kΩ
DRVDD
0710
0-00
7
Figure 10. Equivalent SDIO/DCS Input Circuit
AD9601
Rev. 0 | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS AVDD = 1.8 V, DRVDD = 1.8 V, rated sample rate, DCS enabled, TA = 25°C, 1.25 V p-p differential input, AIN = −1 dBFS, unless otherwise noted.
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
10010 20 30 40 50 60 70 80 90
200MSPS10.3MHz @ –1.0dBFSSNR: 59.48dBENOB: 9.58 BITSSFDR: 83.79dBc
0710
0-02
0
Figure 11. AD9601-200 64k Point Single-Tone FFT; 200 MSPS, 10.3 MHz
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
10010 20 30 40 50 60 70 80 90
200MSPS70.3MHz @ –1.0dBFSSNR: 59.3dBENOB: 9.7 BITSSFDR: 78dBc
0710
0-02
1
Figure 12. AD9601-200 64k Point Single-Tone FFT; 200 MSPS, 70.3 MHz
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
10010 20 30 40 50 60 70 80 90
200MSPS170.3MHz @ –1.0dBFSSNR: 59.35dBENOB: 9.7 BITSSFDR: 83dBc
0710
0-02
2
Figure 13. AD9601-200 64k Point Single-Tone FFT; 200 MSPS, 170.3 MHz
70k
0
BIN
NU
MB
ER O
F H
ITS
60k
50k
40k
30k
20k
10k
N – 1N – 2 N N + 1
0710
0-02
3
Figure 14. AD9601-200 Grounded Input Histogram; 200 MSPS
90
500 500
ANALOG INPUT FREQUENCY (MHz)
SNR
/SFD
R (d
B)
85
80
75
70
65
60
55
50 100 150 200 250 300 350 400 450
SFDR (+85°C)
SFDR (+25°C)
SFDR (–40°C)
SNR (–40°C)SNR (+25°C)
SNR (+85°C)
0710
0-02
4
Figure 15. AD9601-200 Single-Tone SNR/SFDR vs. Input Frequency (fIN) and
Temperature with 1.25 V p-p Full Scale; 200 MSPS
090 0
AMPLITUDE (–dBFS)
SNR
/SFD
R (d
B)
90
80
70
60
50
40
30
20
10
80 70 60 50 40 30 20 10
SNR (dB)
SFDR (dBc)
SNR (dBFS)
SFDR (dBFS)
0710
0-02
5
Figure 16. AD9601-200 SNR/SFDR vs. Input Amplitude; 170.3 MHz
AD9601
Rev. 0 | Page 13 of 32
OUTPUT CODE
INL
(LSB
)
1.0
–1.00 1024
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
128 256 384 512 640 768 896
0710
0-02
6
Figure 17. AD9601-200 INL; 200 MSPS
400
05 245
SAMPLE RATE (MSPS)
CU
RR
ENT
(mA
)
350
300
250
200
150
100
50
25 45 65 85 105 125 145 165 185 205 225
TOTAL POWER (mW)
IAVDD (mA)
IDVDD (mA)
0710
0-02
7
Figure 18. AD9601-200 Power Supply Current vs. Sample Rate
1.0
–1.00 1024
0710
0-02
8
90
500 500
ANALOG INPUT FREQUENCY (MHz)
SNR
/SFD
R (d
B)
OUTPUT CODE
DN
L (L
SB)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
128 256 384 512 640 768 896
Figure 19. AD9601-200 DNL; 200 MSPS
85
80
75
70
65
60
55
SFDR (+25°C)
SFDR (–40°C)SFDR (+85°C)
SNR (+85°C) SNR (+25°C) SNR (–40°C)
0710
0-02
9
50 100 150 200 250 300 350 400 450
Figure 20. SNR/SFDR vs. Analog Input Frequency, Interleaved Mode vs.
Temperature
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
20 40 60 80 100 120
250MSPS10.3MHz @ –1.0dBFSSNR: 59.4dBENOB: 9.7 BITSSFDR: 84dBc
0710
0-03
0
Figure 21. AD9601-250 64k Point Single-Tone FFT; 250 MSPS, 10.3 MHz
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
20 40 60 80 100 120
250MSPS70.3MHz @ –1.0dBFSSNR: 59.4dBENOB: 9.7 BITSSFDR: 81dBc
0710
0-03
1
Figure 22. AD9601-250 64k Point Single-Tone FFT; 250 MSPS, 70.3 MHz
AD9601
Rev. 0 | Page 14 of 32
0
–1400
FREQUENCY (MHz)
AM
PLIT
UD
E (d
BFS
)
–20
–40
–60
–80
–100
–120
20 40 60 80 100 120
250MSPS170.3MHz @ –1.0dBFSSNR: 59.1dBENOB: 9.60 BITSSFDR: 73dBc
0710
0-03
2
Figure 23. AD9601-250 64k Point Single-Tone FFT; 250 MSPS, 170.3 MHz
70k
0
BIN
NU
MB
ER O
F H
ITS
60k
50k
40k
30k
20k
10k
N – 2 N – 1 N N + 1 N + 2
0710
0-03
3
Figure 24. AD9601-250 Grounded Input Histogram; 250 MSPS
90
500 500
ANALOG INPUT FREQUENCY (MHz)
SNR
/SFD
R (d
B)
85
80
75
70
65
60
55
50 100 150 200 250 300 350 400 450
SFDR (+85°C)
SFDR (+25°C)
SFDR (–40°C)
SNR (+85°C) SNR (–40°C)
SNR (+25°C)
0710
0-03
4
Figure 25. AD9601-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN) and
Temperature with 1.25 V p-p Full Scale; 250 MSPS
100
090 0
AMPLITUDE (–dBFS)
SNR
/SFD
R (d
B)
90
80
70
60
50
40
30
20
10
80 70 60 50 40 30 20 10
SNR (dB)SFDR (dBc)
SNR (dBFS)
SFDR (dBFS)
0710
0-03
5
Figure 26. AD9601-250 SNR/SFDR vs. Input Amplitude; 250 MSPS, 170.3 MHz
1.0
–1.00 1
OUTPUT CODE
INL
(LSB
)
024
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
128 256 384 512 640 768 896
0710
0-03
6
Figure 27. AD9601-250 DNL; 250 MSPS
400
05 245
SAMPLE RATE (MSPS)
CU
RR
ENT
(mA
)
350
300
250
200
150
100
50
25 45 65 85 105 125 145 165 185 205 225
TOTAL POWER (mW)
IAVDD (mA)
IDVDD (mA)
0710
0-03
7
Figure 28. AD9601 Power Supply Current vs. Sample Rate
AD9601
Rev. 0 | Page 15 of 32
1.0
–1.00
OUTPUT CODE
DN
L (L
SB)
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
128 256 384 512 640 768 896
0710
0-03
8
Figure 29. AD9601-250 DNL; 250 MSPS
90
0
SAMPLE RATE (MSPS)
SNR
/SFD
R (d
B)
80
70
60
50
40
30
20
10
SFDR
SNR
12575 175 225 275
0710
0-03
9
Figure 30. SNR/SFDR vs. Sample Rate; AD9626-250 , 170.3 MHz @ −1 dBFS
2.5
2.0
1.5
1.0
0.5
0
–0.5–60 120100806040200–20–40
GA
IN (%
FS)
TEMPERATURE (°C)
AD9601-210
AD9601-250
AD9601-170
0710
0-04
0
Figure 31. Gain vs. Temperature
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0–40 –30 –20 –10 0 908070605040302010
OFF
SET
(mV)
TEMPERATURE (°C)
AD9601-170
AD9601-210
AD9601-250
0710
0-04
1
Figure 32. Offset vs. Temperature
AD9601
Rev. 0 | Page 16 of 32
THEORY OF OPERATION The AD9601 architecture consists of a front-end sample-and-hold amplifier (SHA) followed by a pipelined switched capacitor ADC. The quantized outputs from each stage are combined into a final 10-bit result in the digital correction logic. The pipelined architecture permits the first stage to operate on a new input sample, while the remaining stages operate on preceding samples. Sampling occurs on the rising edge of the clock.
Each stage of the pipeline, excluding the last, consists of a low resolution flash ADC connected to a switched capacitor DAC and interstage residue amplifier (MDAC). The residue amplifier magnifies the difference between the reconstructed DAC output and the flash input for the next stage in the pipeline. One bit of redundancy is used in each stage to facilitate digital correction of flash errors. The last stage simply consists of a flash ADC.
The input stage contains a differential SHA that can be ac- or dc-coupled. The output-staging block aligns the data, carries out the error correction, and passes the data to the output buffers. The output buffers are powered from a separate supply, allowing adjustment of the output voltage swing. During power-down, the output buffers go into a high impedance state.
ANALOG INPUT AND VOLTAGE REFERENCE The analog input to the AD9601 is a differential buffer. For best dynamic performance, the source impedances driving VIN+ and VIN− should be matched such that common-mode settling errors are symmetrical. The analog input is optimized to provide superior wideband performance and requires that the analog inputs be driven differentially.
A wideband transformer, such as Mini-Circuits® ADT1-1WT, can provide the differential analog inputs for applications that require a single-ended-to-differential conversion. Both analog inputs are self-biased by an on-chip resistor divider to a nominal 1.4 V.
An internal differential voltage reference creates positive and negative reference voltages that define the 1.25 V p-p fixed span of the ADC core. This internal voltage reference can be adjusted by means of SPI control. See the AD9601 Configuration Using the SPI section for more details.
Differential Input Configurations
Optimum performance is achieved while driving the AD9601 in a differential input configuration. For baseband applications, the AD8138 differential driver provides excellent performance and a flexible interface to the ADC. The output common-mode voltage of the AD8138 is easily set to AVDD/2 + 0.5 V, and the driver can be configured in a Sallen-Key filter topology to provide band limiting of the input signal.
VIN+
VIN–
AVDD
CML
AD8138523Ω
499Ω
499Ω
499Ω33Ω
33Ω
49.9Ω1V p-p
0.1µF
20pF AD9601
0710
0-00
8
Figure 33. Differential Input Configuration Using the AD8138
At input frequencies in the second Nyquist zone and above, the performance of most amplifiers may not be adequate to achieve the true performance of the AD9601. This is especially true in IF undersampling applications where frequencies in the 70 MHz to 100 MHz range are being sampled. For these applications, differential transformer coupling is the recommended input configuration. The signal characteristics must be considered when selecting a transformer. Most RF transformers saturate at frequencies below a few millihertz, and excessive signal power can also cause core saturation, which leads to distortion.
In any configuration, the value of the shunt capacitor, C, is dependent on the input frequency and may need to be reduced or removed.
VIN+
VIN–
15Ω
15Ω
50Ω1.25V p-p
0.1µF
2pF AD9601
0710
0-00
9
Figure 34. Differential Transformer-Coupled Configuration
As an alternative to using a transformer-coupled input at frequencies in the second Nyquist zone, the AD8352 differential driver can be used (see Figure 35).
AD9601AD8352
0Ω
R
0Ω
CD RD RG
0.1µF
0.1µF
0.1µF
VIN+
VIN– CML
C
0.1µF
0.1µF
1612
345
11
R0.1µF
0.1µF
10
8, 13
14
VCC
200Ω
200Ω
ANALOG INPUT
ANALOG INPUT
0710
0-01
0
Figure 35. Differential Input Configuration Using the AD8352
AD9601
Rev. 0 | Page 17 of 32
CLOCK INPUT CONSIDERATIONS For optimum performance, the AD9601 sample clock inputs (CLK+ and CLK−) should be clocked with a differential signal. This signal is typically ac-coupled into the CLK+ pin and the CLK− pin via a transformer or capacitors. These pins are biased internally and require no additional bias.
Figure 36 shows one preferred method for clocking the AD9601. The low jitter clock source is converted from single-ended to differential using an RF transformer. The back-to-back Schottky diodes across the secondary transformer limit clock excursions into the AD9601 to approximately 0.8 V p-p differential. This helps prevent the large voltage swings of the clock from feeding through to other portions of the AD9601 and preserves the fast rise and fall times of the signal, which are critical to low jitter performance.
0.1µF
0.1µF
0.1µF0.1µFCLOCK
INPUT50Ω 100Ω
CLK–
CLK+ADC
AD9601
MINI-CIRCUITSADT1–1WT, 1:1Z
XFMR
SCHOTTKYDIODES:HSM2812 07
100-
011
Figure 36. Transformer-Coupled Differential Clock
If a low jitter clock is available, another option is to ac couple a differential PECL signal to the sample clock input pins, as shown in Figure 37. The AD9510/AD9511/AD9512/AD9513/ AD9514/AD9515 family of clock drivers offers excellent jitter performance.
100Ω0.1µF
0.1µF0.1µF
0.1µF
240Ω240Ω
AD9510/AD9511/AD9512/AD9513/AD9514/AD9515
50Ω* 50Ω*CLK
CLK
*50Ω RESISTORS ARE OPTIONAL.
CLK–
CLK+
ADCAD9601PECL DRIVER
CLOCKINPUT
CLOCKINPUT
0710
0-01
2
Figure 37. Differential PECL Sample Clock
AD9510/AD9511/AD9512/AD9513/AD9514/AD9515
100Ω0.1µF
0.1µF0.1µF
0.1µF
50Ω* 50Ω*CLK
CLK
*50Ω RESISTORS ARE OPTIONAL.
CLK–
CLK+
ADCAD9601LVDS DRIVER
CLOCKINPUT
CLOCKINPUT
0710
0-01
3
Figure 38. Differential LVDS Sample Clock
In some applications, it is acceptable to drive the sample clock inputs with a single-ended CMOS signal. In such applications, CLK+ should be directly driven from a CMOS gate, and the CLK− pin should be bypassed to ground with a 0.1 μF capacitor in parallel with a 39 kΩ resistor (see Figure 39). Although the CLK+ input circuit supply is AVDD (1.8 V), this input is designed to withstand input voltages up to 3.3 V, making the selection of the drive logic voltage very flexible.
0.1µF
0.1µF
0.1µF
39kΩ
CMOS DRIVER50Ω*
OPTIONAL100Ω
0.1µFCLK
CLK
*50Ω RESISTOR IS OPTIONAL.
CLK–
CLK+
ADCAD9601
AD9510/AD9511/AD9512/AD9513/AD9514/AD9515
CLOCKINPUT
0710
0-01
4
Figure 39. Single-Ended 1.8 V CMOS Sample Clock
0.1µF
0.1µF
0.1µF
CMOS DRIVER
CLK
CLK
*50Ω RESISTOR IS OPTIONAL.
0.1µFCLK–
CLK+
AD9510/AD9511/AD9512/AD9513/AD9514/AD9515
ADCAD9601
CLOCKINPUT
50Ω*OPTIONAL
100Ω
0710
0-01
5
Figure 40. Single-Ended 3.3 V CMOS Sample Clock
Clock Duty Cycle Considerations
Typical high speed ADCs use both clock edges to generate a variety of internal timing signals. As a result, these ADCs may be sensitive to the clock duty cycle. Commonly, a 5% tolerance is required on the clock duty cycle to maintain dynamic per-formance characteristics. The AD9601 contains a duty cycle stabilizer (DCS) that retimes the nonsampling edge, providing an internal clock signal with a nominal 50% duty cycle. This allows a wide range of clock input duty cycles without affecting the performance of the AD9601. When the DCS is on, noise and distortion performance are nearly flat for a wide range of duty cycles. However, some applications may require the DCS function to be off. If so, keep in mind that the dynamic range performance can be affected when operated in this mode. See the AD9601 Configuration Using the SPI section for more details on using this feature.
The duty cycle stabilizer uses a delay-locked loop (DLL) to create the nonsampling edge. As a result, any changes to the sampling frequency require approximately eight clock cycles to allow the DLL to acquire and lock to the new rate.
AD9601
Rev. 0 | Page 18 of 32
Clock Jitter Considerations
High speed, high resolution ADCs are sensitive to the quality of the clock input. The degradation in SNR for a full-scale input signal at a given input frequency (fA) due only to aperture jitter (tJ) can be calculated by
SNR Degradation = 20 × log10[1/2 × π × fA × tJ]
In this equation, the rms aperture jitter represents the root mean square of all jitter sources, including the clock input, analog input signal, and ADC aperture jitter specifications. IF undersampling applications are particularly sensitive to jitter (see Figure 41).
The clock input should be treated as an analog signal in cases where aperture jitter may affect the dynamic range of the AD9601. Power supplies for clock drivers should be separated from the ADC output driver supplies to avoid modulating the clock signal with digital noise. Low jitter, crystal controlled oscillators make the best clock sources. If the clock is generated from another type of source (by gating, dividing, or other methods), it should be retimed by the original clock at the last step.
Refer to the AN-501 Application Note and the AN-756 Application Note for more in-depth information about jitter performance as it relates to ADCs (visit www.analog.com).
1 10 100 1000
16 BITS
14 BITS
12 BITS
30
40
50
60
70
80
90
100
110
120
130
0.125ps0.25ps0.5ps1.0ps2.0ps
ANALOG INPUT FREQUENCY (MHz)
10 BITS
8 BITS
RMS CLOCK JITTER REQUIREMENT
SNR
(dB
)
0710
0-01
6
Figure 41. Ideal SNR vs. Input Frequency and Jitter for 0 dBFS Input Signal
POWER DISSIPATION AND POWER-DOWN MODE As shown in Figure 28, the power dissipated by the AD9601 is proportional to its sample rate. The digital power dissipation does not vary much because it is determined primarily by the DRVDD supply and bias current of the LVDS output drivers.
By asserting PDWN (Pin 29) high, the AD9601 is placed in standby mode or full power-down mode, as determined by the contents of Serial Port Register 08. Reasserting the PDWN pin low returns the AD9601 into its normal operational mode.
An additional standby mode is supported by means of varying the clock input. When the clock rate falls below 20 MHz, the AD9601 assumes a standby state. In this case, the biasing network
and internal reference remain on, but digital circuitry is powered down. Upon reactivating the clock, the AD9601 resumes normal operation after allowing for the pipeline latency.
DIGITAL OUTPUTS Digital Outputs and Timing
The off-chip drivers on the AD9601 are CMOS-compatible output levels. The outputs are biased from a separate supply (DRVDD), allowing isolation from the analog supply and easy interface to external logic. The outputs are CMOS devices that swing from ground to DRVDD (with no dc load). It is recom-mended to minimize the capacitive load the ADC drives by keeping the output traces short (<1 inch, for a total CLOAD < 5 pF). When operating in CMOS mode, it is also recommended to place low value (20 Ω) series damping resistors on the data lines to reduce switching transient effects on performance.
The format of the output data is offset binary by default. An example of the output coding format can be found in Table 11. If it is desired to change the output data format to twos comple-ment, see the AD9601 Configuration Using the SPI section.
An output clock signal is provided to assist in capturing data from the AD9601. The DCO+/DCO− signal is used to clock the output data and is equal to the sampling clock (CLK) rate in single port mode, and one-half the clock rate in interleaved output mode. See the timing diagrams shown in Figure 2 and Figure 3 for more information.
Out-of-Range
An out-of-range condition exists when the analog input voltage is beyond the input range of the ADC. OVRA/OVRB is a digital output that is updated along with the data output corresponding to the particular sampled input voltage. Thus, OVRA/OVRB has the same pipeline latency as the digital data. OVRA/OVRB is low when the analog input voltage is within the analog input range and high when the analog input voltage exceeds the input range, as shown in Figure 42. OVRA/OVRB remains high until the analog input returns to within the input range and another conversion is completed. By logically AND-ing OVRA/OVRB with the MSB and its complement, overrange high or under-range low conditions can be detected.
100
001
OVRA/OVRBDATA OUTPUTS
OVRA/OVRB
+FS – 1 LSB
+FS – 1/2 LSB+FS–FS
–FS + 1/2 LSB
–FS – 1/2 LSB
111111111111
000000000000
111111111111
000000000000
111111111110
000100000000
0710
0-01
7
Figure 42. OVRA/OVRB Relation to Input Voltage and Output Data
AD9601
Rev. 0 | Page 19 of 32
TIMING—SINGLE PORT MODE In single port mode, the CMOS output data is available from Data Port A (DA0 to DA9). The outputs for Port B (DB0 to DB9) are unused, and are high impedance in this mode. The Port A outputs and the differential output data clock (DCO+/DCO−) switch nearly simultaneously during the rising edge of DCO+. In this mode, it is recommended to use the rising edge of DCO− to capture the data from Port A. The setup and hold time depends on the input sample clock period, and is approximately 1/fCLK ± tSKEW.
TIMING—INTERLEAVED MODE In interleaved mode, the output data of the AD9601 is de-multiplexed onto two data port buses, Port A (DA0 to DA9) and Port B (DB0 to DB9). The output data and differential data capture clock switch at one-half the rate of the sample clock input (CLK+/CLK−), increasing the setup and hold time for the external data capture circuit relative to single port mode (see Figure 3, interleaved mode timing diagram). The two ports switch on alternating sample clock cycles, with the data for Port A being valid during the rising edge of DCO+, and the data for Port B being valid during the rising edge of DCO−. The pipeline latency for both ports is six sample clock cycles. Due to the random nature of the ÷2 circuit that generates the timing for the output stage in interleaved mode, the first data sample during power-up can be assigned to either Data Port A or Port B. The user cannot control the polarity of the output data clock relative to the input sample clock. In this mode, it is recom-
mended to use the rising edge of DCO+ to capture the data from Port A, and the rising edge of DCO− to capture the data from Port B. In both cases, the setup and hold time depends on the input sample clock period, and both are approximately 2/fS ± tSKEW.
fS/2 Spurious
Because the AD9601 output data rate is at one-half the sampling frequency in interleaved output mode, there is significant fS/2 energy in the outputs of the part, and there is significant energy in the ADC output spectrum at fS/2. Care must be taken to be certain that this fS/2 energy does not couple into either the clock circuit or the analog inputs of the AD9601. When fS/2 energy is coupled in this fashion, it appears as a spurious tone reflected around fS/4, 3fS/4, 5fS/4, and so on. For example, in a 125 MSPS sampling application with a 90 MHz single-tone analog input, this energy generates a tone at 97.5 MHz.
[(3 × 125 MSPS/4 − 90 MHz) + 3 × 125 MSPS/4]
Depending on the relationship of the IF frequency to the center of the Nyquist zone, this spurious tone may or may not be in the user’s band of interest. Some residual fS/2 energy is present in the AD9601, and the level of this spur is typically below the level of the harmonics at clock rates. Figure 20 shows a plot of the fS/2 spur level vs. the analog input frequency for the AD9601-250. For the specifications provided in Table 2, the fS/2 spur effect is not a factor, as the device is specified in single port output mode.
AD9601
Rev. 0 | Page 20 of 32
LAYOUT CONSIDERATIONS POWER AND GROUND RECOMMENDATIONS When connecting power to the AD9601, it is recommended that two separate supplies be used: one for analog (AVDD, 1.8 V nominal) and one for digital (DRVDD, 1.8 V nominal). If only a single 1.8 V supply is available, it is routed to AVDD first, then tapped off and isolated with a ferrite bead or filter choke with decoupling capacitors proceeding connection to DRVDD. The user can employ several different decoupling capacitors to cover both high and low frequencies. These should be located close to the point of entry at the PC board level and close to the parts with minimal trace length.
A single PC board ground plane is sufficient when using the AD9601. With proper decoupling and smart partitioning of analog, digital, and clock sections of the PC board, optimum performance is easily achieved.
Exposed Paddle Thermal Heat Slug Recommendations
It is required that the exposed paddle on the underside of the ADC be connected to analog ground (AGND) to achieve the best electrical and thermal performance of the AD9601. An exposed, continuous copper plane on the PCB should mate to the AD9601 exposed paddle, Pin 0. The copper plane should have several vias to achieve the lowest possible resistive thermal path for heat dissipation to flow through the bottom of the PCB. These vias should be solder-filled or plugged.
To maximize the coverage and adhesion between the ADC and PCB, partition the continuous plane by overlaying a silkscreen on the PCB into several uniform sections. This provides several tie points between the two during the reflow process. Using one continuous plane with no partitions guarantees only one tie point between the ADC and PCB. See Figure 43 for a PCB layout example. For detailed information on packaging and the PCB layout of chip scale packages, see Application Note AN-772, A Design and Manufacturing Guide for the Lead Frame Chip Scale Package.
SILKSCREEN PARTITIONPIN 1 INDICATOR
0710
0-01
8
Figure 43. Typical PCB Layout
CML The CML pin should be decoupled to ground with a 0.1 μF capacitor, as shown in Figure 45.
RBIAS The AD9601 requires the user to place a 10 kΩ resistor between the RBIAS pin and ground. This resistor sets the master current reference of the ADC core and should have at least a 1% tolerance.
AD9601 CONFIGURATION USING THE SPI The AD9601 SPI allows the user to configure the converter for specific functions or operations through a structured register space inside the ADC. This gives the user added flexibility to customize device operation depending on the application. Addresses are accessed (programmed or read back) serially in one-byte words. Each byte can be further divided down into fields, which are documented in the Memory Map section.
There are three pins that define the serial port interface or SPI to this particular ADC. They are the SPI SCLK/DFS, SPI SDIO/DCS, and CSB pins. The SCLK/DFS (serial clock) is used to synchronize the read and write data presented the ADC. The SDIO/DCS (serial data input/output) is a dual-purpose pin that allows data to be sent and read from the internal ADC memory map registers. The CSB is an active low control that enables or disables the read and write cycles (see Table 8).
Table 8. Serial Port Pins Mnemonic Function SCLK SCLK (Serial Clock) is the serial shift clock in.
SCLK is used to synchronize serial interface reads and writes.
SDIO SDIO (Serial Data Input/Output) is a dual-purpose pin. The typical role for this pin is an input and output depending on the instruction being sent and the relative position in the timing frame.
CSB CSB (Chip Select Bar) is an active low control that gates the read and write cycles.
RESET Master Device Reset. When asserted, device assumes default settings. Active low.
The falling edge of the CSB, in conjunction with the rising edge of the SCLK, determines the start of the framing. An example of the serial timing and its definitions can be found in Figure 44 and Table 10.
During an instruction phase, a 16-bit instruction is transmitted. Data then follows the instruction phase and is determined by the W0 and W1 bits, which is 1 or more bytes of data. All data is composed of 8-bit words. The first bit of each individual byte of serial data indicates whether this is a read or write command. This allows the serial data input/output (SDIO) pin to change direction from an input to an output.
Data can be sent in MSB or in LSB first mode. MSB first is default on power-up and can be changed by changing the configuration register. For more information about this feature and others, see Interfacing to High Speed ADCs via SPI at www.analog.com.
AD9601
Rev. 0 | Page 21 of 32
HARDWARE INTERFACE The pins described in Table 8 comprise the physical interface between the user’s programming device and the serial port of the AD9601. All serial pins are inputs, which is an open-drain output and should be tied to an external pull-up or pull-down resistor (suggested value of 10 kΩ).
This interface is flexible enough to be controlled by either PROMS or PIC microcontrollers as well. This provides the user with an alternate method to program the ADC other than a SPI controller.
If the user chooses not to use the SPI interface, some pins serve a dual function and are associated with a specific function when strapped externally to AVDD or ground during device power-on. The Configuration Without the SPI section describes the strappable functions supported on the AD9601.
CONFIGURATION WITHOUT THE SPI In applications that do not interface to the SPI control registers, the SPI SDIO/DCS and SPI SCLK/DFS pins can alternately serve as standalone CMOS-compatible control pins. When the device is powered up, it is assumed that the user intends to use the pins as static control lines for the duty cycle stabilizer. In this mode, the SPI CSB chip select should be connected to ground, which disables the serial port interface.
Table 9. Mode Selection
Mnemonic External Voltage Configuration AVDD Duty cycle stabilizer enabled SPI SDIO/DCS AGND Duty cycle stabilizer disabled AVDD Twos complement enabled SPI SCLK/DFS AGND Offset binary enabled
DON’T CARE
DON’T CAREDON’T CARE
DON’T CARE
SDIO
SCLK
CSB
tS tDH
tHI tCLK
tLO
tDS tH
R/W W1 W0 A12 A11 A10 A9 A8 A7 D5 D4 D3 D2 D1 D0
0710
0-01
9
Figure 44. Serial Port Interface Timing Diagram
AD9601
Rev. 0 | Page 22 of 32
Table 10. Serial Timing Definitions Parameter Timing (minimum, ns) Description tDS 5 Setup time between the data and the rising edge of SCLK tDH 2 Hold time between the data and the rising edge of SCLK tCLK 40 Period of the clock tS 5 Setup time between CSB and SCLK tH 2 Hold time between CSB and SCLK tHI 16 Minimum period that SCLK should be in a logic high state tLO 16 Minimum period that SCLK should be in a logic low state tEN_SDIO 1 Minimum time for the SDIO pin to switch from an input to an output relative to the SCLK
falling edge (not shown in Figure 44) tDIS_SDIO 5 Minimum time for the SDIO pin to switch from an output to an input relative to the SCLK
rising edge (not shown in Figure 44)
Table 11. Output Data Format
Input (V) Condition (V) Offset Binary Output Mode D11 to D0
Twos Complement Mode D11 to D0
Gray Code Mode (SPI Accessible) D11 to D0 OR
VIN+ − VIN− < 0.62 0000 0000 0000 0000 0000 0000 0000 0000 0000 1 VIN+ − VIN− = 0.62 0000 0000 0000 0000 0000 0000 0000 0000 0000 0 VIN+ − VIN− = 0 0000 0000 0000 0000 0000 0000 0000 0000 0000 0 VIN+ − VIN− = 0.62 1111 1111 1111 1111 1111 1111 0000 0000 0000 0 VIN+ − VIN− > 0.62 + 0.5 LSB 1111 1111 1111 1111 1111 1111 0000 0000 0000 1
AD9601
Rev. 0 | Page 23 of 32
MEMORY MAP READING THE MEMORY MAP TABLE Each row in the memory map table has eight address locations. The memory map is roughly divided into three sections: chip configuration register map (Address 0x00 to Address 0x02), transfer register map (Address 0xFF), and program register map (Address 0x08 to Address 0x2A).
The Addr (Hex) column of the memory map indicates the register address in hexadecimal, and the Default Value (Hex) column shows the default hexadecimal value that is already written into the register. The Bit 7 (MSB) column is the start of the default hexadecimal value given. For example, Hexadecimal Address 0x09, clock, has a hexadecimal default value of 0x01. This means Bit 7 = 0, Bit 6 = 0, Bit 5 = 0, Bit 4 = 0, Bit 3 = 0, Bit 2 = 0, Bit 1 = 0, and Bit 0 = 1, or 0000 0001 in binary. The default value enables the duty cycle stabilizer. Overwriting this default so that Bit 0 = 0 disables the duty cycle stabilizer. For more information on this and other functions, consult the Interfacing to High Speed ADCs via SPI user manual at www.analog.com.
RESERVED LOCATIONS Undefined memory locations should not be written to other than their default values suggested in this data sheet. Addresses that have values marked as 0 should be considered reserved and have a 0 written into their registers during power-up.
DEFAULT VALUES Coming out of reset, critical registers are preloaded with default values. These values are indicated in Table 12. Other registers do not have default values and retain the previous value when exiting reset.
LOGIC LEVELS An explanation of various registers follows: “Bit is set” is synonymous with “bit is set to Logic 1” or “writing Logic 1 for the bit.” Similarly, “clear a bit” is synonymous with “bit is set to Logic 0” or “writing Logic 0 for the bit.”
Table 12. Memory Map Register
Addr (Hex) Parameter Name
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
Bit 0 (LSB)
DefaultValue (Hex)
Default Notes/ Comments
Chip Configuration Registers
00 chip_port_config 0 LSB first
Soft reset 1 1 Soft reset LSB first 0 0x18 The nibbles should be mirrored by the user so that LSB or MSB first mode registers correctly, regardless of shift mode.
01 chip_id 8-bit chip ID, Bits[7:0] AD9601 = 0x36
Read-only
Default is unique chip ID, different for each device. This is a read-only register.
02 chip_grade 0 0 0 Speed grade: 01 = 200 MSPS 10 = 250 MSPS
X X X Read-only
Child ID used to differentiate graded devices.
Transfer Register
FF device_update 0 0 0 0 0 0 0 SW transfer
0x00 Synchronously transfers data from the master shift register to the slave.
ADC Functions
08 modes 0 0 PDWN: 0 = full (default) 1 = standby
0 0 Internal power-down mode: 000 = normal (power-up, default)
001 = full power-down 010 = standby
011 = normal (power-up) Note: external PDWN pin overrides
this setting
0x00 Determines various generic modes of chip operation.
AD9601
Rev. 0 | Page 24 of 32
Addr (Hex) Parameter Name
Bit 7 (MSB) Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1
Bit 0 (LSB)
Default Value (Hex)
Default Notes/ Comments
09 clock 0 0 0 0 0 0 0 Duty cycle stabilizer: 0 = disabled 1 = enabled (default)
0x01
OD test_io Reset PN23 gen:1 = on 0 = off (default)
Reset PN9 gen:1 = on 0 = off (default)
Output test mode: 0000 = off (default)
0001 = midscale short 0010 = +FS short 0011 = −FS short
0100 = checker board output 0101 = PN 23 sequence
0110 = PN 9 0111 = one/zero word toggle
1000 = unused 1001 = unused 1010 = unused 1011 = unused 1100 = unused
(Format determined by output_mode)
0x00 When set, the test data is placed on the output pins in place of normal data.
OF ain_config 0 0 0 0 0 Analog input disable: 1 = on 0 = off (default)
CML enable: 1 = on 0 = off (default)
0 0x00
14 output_mode 0 0 Interleave output mode: 1 = enabled 0 = disabled (default)
Output enable: 0 = enable (default)1 = disable
0 Output invert: 1 = on 0 = off (default)
Data format select: 00 = offset binary
(default) 01 = twos
complement 10 = Gray code
0x00
16 output_phase Output clock polarity 1 = inverted 0 = normal (default)
0 0 0 0x03
17 flex_output_delay Output delay enable: 0 = enable 1 = disable
Output clock delay: 00000 = 0.1 ns 00001 = 0.2 ns 00010 = 0.3 ns
… 11101 = 3.0 ns 11110 = 3.1 ns 11111 = 3.2 ns
0x00
18 flex_vref Input voltage range setting: 10000 = 0.98 V 10001 =1.00 V 10010 = 1.02 V 10011 =1.04 V
… 11111 = 1.23 V 00000 = 1.25 V 00001 = 1.27 V
… 01110 = 1.48 V 01111 = 1.50 V
0x00
AD9601
Rev. 0 | Page 25 of 32
EVALUATION BOARD
AD
T1-1
WT
PR
IS
EC
nc
ETC
1-1-
13P
RI
SE
C
INO
UT
EV
Q-Q
2
ETC1-1-13PRI SEC
0.1UF
VO
LT_C
ON
TRO
L
VC
LK
TRI_
STA
TE
GN
D
NC
OU
TPU
T
A1
A10
A2
A3
A4
A5
A6
A7
A8
A9
B1
B10 B
2
B3
B4
B5
B6
B7
B8
B9
C1
C10
C2
C3
C4
C5
C6
C7
C8
C9
D1
D10 D
2
D3
D4
D5
D6
D7
D8
D9
GN
DA
B1
GN
DA
B10
GN
DA
B2
GN
DA
B3
GN
DA
B4
GN
DA
B5
GN
DA
B6
GN
DA
B7
GN
DA
B8
GN
DA
B9
GN
DC
D1
GN
DC
D10
GN
DC
D2
GN
DC
D3
GN
DC
D4
GN
DC
D5
GN
DC
D6
GN
DC
D7
GN
DC
D8
GN
DC
D9
HE
AD
ER
M14
6916
9_1
A1
A10
A2
A3
A4
A5
A6
A7
A8
A9
B1
B10 B
2
B3
B4
B5
B6
B7
B8
B9
C1
C10
C2
C3
C4
C5
C6
C7
C8
C9
D1
D10 D2
D3
D4
D5
D6
D7
D8
D9
GN
DA
B1
GN
DA
B10
GN
DA
B2
GN
DA
B3
GN
DA
B4
GN
DA
B5
GN
DA
B6
GN
DA
B7
GN
DA
B8
GN
DA
B9
GN
DC
D1
GN
DC
D10
GN
DC
D2
GN
DC
D3
GN
DC
D4
GN
DC
D5
GN
DC
D6
GN
DC
D7
GN
DC
D8
GN
DC
D9
HE
AD
ER
M14
6916
9_1
AIN
AIN
B
AV
DD
_CLK
AVDD_CLK1
AV
DD
_FL
AV
DD
_FL1
AV
DD
_PIP
E
AV
DD
_PIP
E1
AV
DD
_PIP
E2
AV
DD
_PIP
E3
AV
DD
_PIP
E4
AV
DD
_PIP
E5
AV
DD
_RE
F
CLK
CLKB
CM
L
D0
D0B
D1
D10
D10B
D11
D11B
D1B
D2D2B
D3
D3BD
4D
4B
D5BD
6
D6BD
7
D7BD
8
D8B
D9
D9B
DCO
DCOB
DG
ND
DGND1 DGND2
DOR
DORB
DV
DD
DVDD1 DVDD2
PA
D
PD
N
RB
IAS
RE
SE
TB
SPCSB
SPSCLK/DFS
SPSDIO/DCS
D5
PR
IS
EC
nc
50_O
HM
S
50_O
HM
S
Alte
rnat
e O
ptio
ns
DN
P
optional
EN
CO
DE
CR
2 TO
MA
KE
LA
YO
UT
AN
D P
AR
AS
ITIC
LO
AD
ING
SY
MM
ETR
ICA
L
AN
ALO
G
Inpu
t
CV
HD
_956
Cry
stek
Cry
stal
U6
OPT
ION
AL E
NC
OD
E C
IRC
UIT
S
D1
D1B
D0
D0B
DC
OB
DC
O
D2B
D2
910121314152 3 4 5 6 7 81
16 11
RN
3
910121314152 3 4 5 6 7 81
16 11
RN
2
910121314152 3 4 5 6 7 81
16 11
D9B
D9
D10
B
D10
D11
B
D11
DO
RB
D10
B
DO
RB
DO
R
D10
910121314152 3 4 5 6 7 81
16 11
CMLX
12
34
56
T3A
DT1
-1W
T
35 36
43
46
424139383734333230
44
45
40
52
51
54
18
17
20
19
53
56
55
2 14 3510 912 1114 13
16
15
50
49
8
23 48
22
21
7
24 47
57
29 31
28
27
26
25
6
U4
AD96
01_C
SP
C17DNP
R9
DN
P
AM
PO
UT-
AM
PO
UT+
TOU
T TOU
TB
0.1UFC21 G
ND
00R90
00R89
00R8
R1
50
D1B
D1
GN
D
10KR12
L80 L9
0
R6 36R5 36
R733
DN
PR
4
R1633
CS
B1_
CH
A
110 23456789
1120 1213141516171819
3140 3233343536373839
4150 4243444546474849
2130 22232425262728295160 5253545556575859
SD
O_C
HA
SD
I_C
HA
SC
LK_C
HA
1
10 23456789
1120 1213141516171819
3140 3233343536373839
4150 4243444546474849
2130 22232425262728295160 5253545556575859
P7
CO
NN
EC
TS T
O J
2
P17
GN
DP
5
P9
GN
D
0.1UF
C75
R17
0 D
NP
VO
LT_C
ON
TRO
L
C74
0.1U
F
GN
D
1
6
2 3
54
E20
C61
0.1U
FE
19
0R87
XTA
LIN
PU
T50R3C15
R86
10K
R85
10K
J3 J4
J2
R13
1KR
101K
1
3 2
CR3
13
2CR2
CS
B
GN
D
VS
PI
E10
E5
E4
DN
PR
15
E7
E6
1
3 425
T6
12
SW
3
C22
0.1U
F
C20
DN
P
0.1U
FC
23
DN
PR
14
R11
1K
E9
L110
NH
0.1U
F
C19
0.1U
FC
18
E8
0.1U
FC
161 3
425T5
12
34
56
T2
E3
E2E1
P4
P3
P2
P1
CM
L
GN
D
GN
D
CLK
CT
CLK
CTG
ND
AV
DD
CM
LC
ML
SDIO_ODM
SCLK_DTP
TOU
TBTI
NB
TOU
TG
ND
GN
D
VS
PI
GN
D
GN
D
GN
D
VS
PI
GN
D
E33
E32
E31
CS
B_D
UT
VS
PI
CSB
GND
DRVDD
DRVDD
DR
VD
D
GNDGND
GN
D
AV
DD
AV
DD
AV
DD
AV
DD
AV
DD
AV
DD
AV
DD
AV
DD
AV
DD
AVDD
AVDD
E18
GN
D
VC
LK
GN
D
GN
D
GND
VC
LK
XTA
LIN
PU
T
VC
LK
GN
DG
ND
GN
D
GN
DG
ND
P16
P10
GN
DG
ND
GN
D
D8B
D6B
D4B
D2B
D0B
D0
D2
D4
D6
D8
D11
B
D9B
D7B
D5B
D3B
D3
D5
D7
D9
D11
DC
OB
DC
O
GN
D
CLK
CLK
GN
D
TIN
B
CM
L
CM
L
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
DO
R
D8B
D8
D7B
D7
D6B
D6
D5
D5B
D4B
D4
D3B
D3
P11
CO
NN
EC
TS T
O J
1
RN
150
_OH
MS
RN
450
_OH
MS
07100-045
Figure 45. AD9601 Evaluation Board Schematic Page 1
AD9601
Rev. 0 | Page 26 of 32
++
+
+
IN
OUT OUT1
AD
P33
38U
9
GND
IN
OUT OUT1
AD
P33
38U
12
GND
IN
OUT
AD
P33
38U
11
GND
IN
OUT OUT1
AD
P33
38U
10
GND+
+
PJ-
102A
+5.0
V
1.8V
1.8V
3.3V
1.8V
1.8V
3.3V
+5V
PO
WE
R O
PTI
ON
S12 3
P8
VIN
VCLK
VSPIEXT1
L6
FERRITE
L2
FERRITE
VSPIEXTX
OUT1VSPIEXTX
DRVDDX1
DR
VD
DX
VSPI
DRVDD1
L3
FERRITE
L5
FERRITE
AVDD1
L4
FERRITE
AVDDX
L7
FERRITE
VAMP1VAMPX
0
R88
C11
10U
F
AV
DD
1
VS
PIE
XT1
VA
MP
1
DR
VD
D1
GN
D
100PF
C730.1UF
C72
0.1UF
C69
VC
LK
C54
10U
F
0.1UFC65 0.1UF
C68
0.1UF
C59
VS
PI
GN
D
0.1U
FC
39
0.1UFC63
0.1UFC62
0.1UFC27
EGND
DR
VD
D
GN
D
3
4 2
1
3
4 2
1
3
4 2
1
3
4 2
1
0.1UFC33
0.1UFC31
C8
10U
F
C9
10U
F
GND
GND
GND
VIN
GND
U7
VA
MP
X
C12
10U
F0.
1UF
C34
EG
ND
3 214
T1
U8
R2499
0.1UFC32
0.1UFC30
0.1UFC29
0.1UFC28
0.1UF
C26
0.1UF
C25
0.1UF
C24
GN
D
VS
PIE
XTX
VIN
VIN
GN
D
GN
D
GN
D
GN
D
GN
D
DR
VD
DX
1
GN
D
AV
DD
X
C14
10U
F
0.1UF
C58
0.1UF
C57
0.1UF
C56
GN
D
VA
MP
0.1UF
C60
0.1U
F
C36
0.1U
F
C35
VS
PIE
XT
0.1UFC64
0.1UF
C13
0.1UF
C66
0.1UF
C67
GN
D
0.1UFC70
0.1UFC71
GN
D
AV
DD
GN
D
C6
1UFC5
1UF
C7
1UF
C10
1UF
C1
1UF
C3
1UF
C2
1UF
C4
1UFG
ND
GN
D
GN
D
GN
D
2 1345678
P6
VA
MP
DR
VD
D
VS
PIE
XT
AV
DD
L12
FER
RIT
EL13
FER
RIT
EL14
FER
RIT
EL15
FER
RIT
E
H4
MTH
OLE
6
H3
MTH
OLE
6
H2
MTH
OLE
6
H1
MTH
OLE
6G
ND
GN
D
EG
ND
EG
ND
VIN
GN
D
07100-046
Figure 46. AD9601 Evaluation Board Schematic Page 2
AD9601
Rev. 0 | Page 27 of 32
AD
T1-1
WT
PR
IS
EC
nc
VO
P
VO
N
VIP
VIN
VC
ME
NB
AD83
52 VC
C
GN
D
GN
DG
ND
VC
C
RG
N
RD
N
RG
P
RD
P
ETC
1-1-
13P
RI
SE
COpe
ratio
nal A
mpl
ifier
AD
9515
Log
ic S
etup
GN
DC
37.1
UF
GN
DC
46.1
UF
1 3425
T7
00R46
00R41
00R91
DNP
C76
DNPL10L11
DNP
10K
R42
00R36
912
67
15
41 32
813
51614
1011
Z1
C44DNP
C45DNP
P13
SM
BM
ST
P12
SM
BM
ST
1
2
34
5
6
T4
C47
.1U
F
00R47
E14
5R45
00R
44
10K
R43
C43
DN
P
E13
E12
DN
PR
40
C42
.1U
F5R39
R38
25
C41
DNP
R37
25C40
DNP
DN
PR
35
DN
PR
34R
3349
.9
00R94
TIN
B1
TOU
T2
TIN
B1
TIN
B2
TOU
TB2
TOU
TB2
TIN
B2
TOU
T2
GN
D
AM
PO
UT-
AM
PO
UT+
CM
L
GN
D
GN
DV
AM
P
GN
D
GN
D
VA
MP
GN
D
GN
D
GN
D
VA
MP
GN
D
GND
0.1UF
SM
BM
ST
SM
BM
ST
DN
C; 2
7, 2
8
CLK
CLK
B
GND
GND_PAD
OU
T0O
UT0
B
S0S1
S10
S2S3S4S5S6S7S8S9
SY
NC
B VREF
RSET
OU
T1O
UT1
BAD
9515
AD
9515
(Opt
_Clk
Circ
uit)
2 3 5
6789
1011121314151625
18192223
31
32
33
U1
VC
LK; 1
, 4, 1
7, 2
0, 2
1, 2
4, 2
6, 2
9, 3
0
P14
P15
0.1U
F
C53
R62
4.12
K
E17 E16
R61
240
R60
240
R59
100
0.1U
F
C52
0.1U
F
C51
0.1U
F
C50
R58
100
R57
00
R56
00R
5500
R54
10K
R53
00R
5200
00 R51 D
NP
R50
DNPR49
C49DNP
C48
50R
48E
15
GN
D
S9
S3
S1S0
S8
VC
LK
GN
D
GN
DG
ND
GN
DG
ND
GN
D
CLK
CLK
S10
S7
S5S6
S4
S2
00
R84
00R83
00R82
00R81
00R80
00R79
00R78
00R77
00R76
00R75
00R74
00R73
00R72
00R71
00R70
00R69
00R68
00R67
00R66
00R65
00R64
00R63
VC
LK
S6
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
GN
D
S10
S9
VC
LK
S8
S7
S5
S4
S3
S2
S1
S0
VC
LK
VC
LK
VC
LK
VC
LK
VC
LK
VC
LK
VC
LK
VC
LK
VC
LK
07100-047
Figure 47. AD9601 Evaluation Board Schematic Page 3
AD9601
Rev. 0 | Page 28 of 32
SP
I CIR
CU
ITR
Y
Y2
Y1
VC
CG
ND
A2
A1
NC
7WZ1
6
Y2
Y1
VC
CG
ND
A2
A1
NC
7WZ0
7
45
3216
U5
45
3216
U31K
R27
10K
R26
1KR25
1KR24
10K
R19
10K
R18
CSB1_CHA
SDO_CHA
SD
IO_O
DM
CS
B_D
UT
GN
D
GN
D
SC
LK_D
TP
GN
D
GN
D
VS
PI
VS
PI
VS
PI
VS
PIE
XT
VS
PIE
XT
SDI_CHA
SCLK_CHA
07100-048
Figure 48. AD9601 Evaluation Board Schematic Page 4
Table 13. Bill of Materials
Qty Reference Designator Package Description Vendor Part Number
1 PCB PCB, AD9230 customer evaluation board, Rev. G Moog AD9230revG 7 C1, C3, C4, C5,
C6, C7, C10 603 Capacitor, 1 μF, 0603, X5R, ceramic, 6.3 V, 10% Panasonic ECJ-1VB0J105K
6 C8, C9, C11, C12, C14, C55
6032-28 Capacitor, 10 μF, tantalum, 16 V, 10% Kemet T491C106K016AS
1 C17 402 Capacitor, 2.0 pF, 50 V, ceramic, 0402, SMD Murata GRM1555C1H2R0GZ01D 7 C27, C32, C33,
C62, C63, C64, C71
402 Capacitor, 0.33 μF, ceramic, X5R, 10 V, 10% Murata GRM155R61A334KE15D
6 C28, C29, C30, C31, C65, C70
402 Capacitor, 120 pF, ceramic, C0G, 25 V, 5% Murata GRM1555C1H121JA01J
10 C21, C22, C23, C24, C25, C26, C34, C35, C36, C39
402 Capacitor, 0.1 μF, ceramic, X5R, 10 V, 10% Murata GRM155R71C104KA88D
1 CR4 603 LED green, SMT, 0603, SS-TYPE Panasonic LNJ314G8TRA 1 CR2 Mini 3P Diode, 30 V, 20 mA Agilent HSMS2812 1 F1 1210 Fuse, 6.0 V, 2.2 A trip current resettable fuse Tyco/Raychem NANOSMDC110F-2 15 E1, E2, E3, E4,
E5, E7, E8, E9, E10, E12, E13, E14, E31, E32, E33
Connector, header, 0.1" Samtec TSW-150-08-G-S
2 J2, J3 SMA end launch
Connector, SMA PCB coax end launch, Johnson 142
Johnson 142-0701-851
10 L2, L3, L4, L5, L7, L12, L13, L14, L15, R88
1206 Ferrite bead, BLM, 3 A, 50 Ω @ 100 MHz Murata BLM31PG500SN1L
1 P8 Power jack, male, 2.1 mm power jack dc CUI Inc CP-102A-ND 1 R1 201 Resistor, 100 Ω, 0201, 1/20 W, 1% NIC Components NRC02F1000TRF 1 R2 603 Resistor, 499 Ω, 0603, 1/10 W, 1% NIC Components NRC06F4990TRF
AD9601
Rev. 0 | Page 29 of 32
Qty Reference Designator Package Description Vendor Part Number
2 R5, R6 402 Resistor, 36 Ω, 0402, 1/16 W, 1% Panasonic ERJ-2GEJ360X 2 R7, R16 402 Resistor, 15 Ω, 0402, 1/16 W, 5% Panasonic ERJ-2RKF15R0X 6 R10, R11, R13,
R24, R25, R27 402 Resistor, 1 kΩ, 0402, 1/16 W, 1% NIC Components NRC04F1001TRF
4 R12, R18, R19, R26,
402 Resistor, 10 kΩ, 0402, 1/16 W, 5% NIC Components NRC04J103TRF
7 R15, C16, C18, C19, C20, R89, R90
402 Resistor, 0 Ω, 0402, 1/16 W, 5% NIC Components NRC04ZOTRF
4 RN1, RN2, RN3, RN4
0402x8 Resistor array, SMT 0402; 0 Ω, ¼ W, 5%, RESNEXB-2HV
Panasonic EXB2HV050JV
3 L1, L8, L9 603 Resistor, 0 Ω, 0603, 1/10 W, 5% NIC Components NRC06ZOTRF 1 P9, P10 805 Resistor, 0 Ω, 0805, 1/8 W, 1% NIC Components NRC10ZOTRF 1 SW3 EVQ-
Q2F03W Switch, light touch SMD Panasonic P12937SCT-ND
1 T1 2020 Ferrite bead, 5 A, 50 V, 190 Ω @ 100 MHz Murata DLW5BSN191SQ2L 2 T2,T3 CD542 Transformer, 0.5 W, 30 mA Mini-Circuits ADT1-1WT+ 1 U3 6-SC70 IC, buffer, inverter, UHS dual SC70-6 Fairchild NC7WZ16P6X 1 U5 6-SC70 IC, buffer, inverter, UHS dual OD out SC70-6 Fairchild NC7WZ07P6X 1 U7 DO-214AA Diode, 50 V, 2 A Micro Commercial S2A-TPMSTR-ND 1 U8 DO-214AB Diode, 30 V, 3 A (SMC) Micro Commercial SK33-TPMSCT-ND 1 U11 SOT-223 Voltage regulator, 3.3 V, 1.5 A Analog Devices ADP3339AKCZ-3.3 2 U9, U12 SOT-223 Voltage regulator, 1.8 V, 1.5 A Analog Devices ADP3339AKCZ-1.8 1 U4 LFCSP56 AD9230 12-bit, 170 MSPS/210 MSPS/250 MSPS,
1.8 V ADC, LFCSP-56 Analog Devices AD9230BCPZ-xxx
2 P7, P11 HM-Zd PCB Connector, 2-Pr, 10-column, high speed, HM-Zd, PCB-mounted
Tyco 6469169-1
Do not install the following: 0 C2, C54 TAJD Capacitor, tantalum, SMT 6032, 10 μF, 16 V, 10% Kemet T491C106K016AS 0 C15, C37, C38,
C40, C41, C61, C42, C43, C44, C45, C46, C47, C48, C49, C50, C51, C52, C53, C39, C56, C57, C58, C59, C74, C75, C60, C66, C67, C68, C69, C72
402 Capacitor, 0.1 μF, ceramic, 10% Murata GRM155R71C104KA88D
0 CR1 Led_ss LED green, USS type 0603 Panasonic LNJ314G8TRA 0 CR3 Diode Schottky diode Agilent HSMS2812 0 805 Tyco/Raychem NANOSMDC110F-2 0 E6, E15, E16,
E17, E18, E19, E20
Connector, header, 0.1" Samtec TSW-150-08-G-S
0 J1 10-pin header
TSW-110-08-G-D Samtec TSW-110-08-G-D
0 J4 SMA Connector, PCB coax SMA end launch, Johnson 142
Johnson 142-0701-851
0 L6 1206 Inductor, 10 nH Murata BLM31P500S 0 P12, P13, P14,
P15 SMA Amphenol RF ARFX1231-ND
AD9601
Rev. 0 | Page 30 of 32
Qty Reference Designator Package Description Vendor Part Number
0 R3, R14, R33, R34, R35, R48, R49
402 Resistor, 49.9 Ω Susumu RR0510R-49R9-D
0 R42, R43, R54, R85, R86
402 Resistor, 10 kΩ NIC Components NRC04J103TRF
0 R28, R29, R30, R31, R32
402 Resistor, 5 kΩ NIC Components NRC04F4991TRF
0 R37, R38 402 Resistor, 25 Ω NIC Components NRC04F24R9TRF 0 R39, R45 402 Resistor, 5 Ω NIC Components NRC04J5R1TRF 0 R58, R59 402 Resistor, 100 Ω NIC Components NRC04F1000TRF 0 R60, R61 402 Resistor, 240 Ω NIC Components NRC04J241TRF 0 R8, R9, R17,
R36, R40, R41, R44, R46, R47, R87, R50, R51, R52, R53, R55, R56, R57, R62, R63, R64, R65, R66, R67, R68, R69, R70, R71, R72, R73, R74, R75, R76, R77, R78, R79, R80, R81, R82, R83, R84
402 Resistor, 0 Ω NIC Components NRC04ZOTRF
0 P1, P2, P16, P17 805 Resistor, 0 Ω NIC Components NRC10ZOTRF 0 SW1 EVQ-
Q2F03W Switch, light touch SMD Panasonic P12937SCT-ND
0 T4 Transformer, RF, 0.4 MHz to 800 MHz, SMD case style CD542
Mini-Circuits ADT1-1WT+
0 T5, T6 sm-22 Balun M/A-Com MABA007159-0000 0 U2 SOIC-8 PIC12F629 Microchip Tech PIC12F629-I/SN 0 U6 Crystal Cvhd_956 crystal CVHD_956 0 U10 SOT-223 Regulator ADP3339AKCZ-5.0 0 Z1 16CSP4X4 AD8352 0 U1 16CSP8X8 AD9515 0 P6 8-pin power connector post Wieland Z5.530.0825.0 0 P6 8-pin power connector top Wieland 25.602.2853.0
AD9601
Rev. 0 | Page 31 of 32
OUTLINE DIMENSIONS
COMPLIANT TO JEDEC STANDARDS MO-220-VLLD-2 1128
05-0
PIN 1INDICATOR
TOPVIEW 7.75
BSC SQ
8.00BSC SQ
156
1415
4342
2829
4.454.30 SQ4.15
0.500.400.30
0.300.230.18
0.50 BSC0.20 REF
12° MAX 0.80 MAX0.65 TYP
1.000.850.80
6.50REF
SEATINGPLANE
0.60 MAX0.60 MAX
PIN 1INDICATOR
COPLANARITY0.08
0.05 MAX0.02 NOM
0.30 MIN
EXPOSEDPAD
(BOTTOM VIEW)
Figure 49. 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ]
8 mm × 8 mm Body, Very Thin Quad (CP-56-2)
Dimensions shown in millimeters
ORDERING GUIDE Model Temperature Range Package Description Package Option AD9601BCPZ-2001 −40°C to +85°C 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ] CP-56-2 AD9601BCPZ-2501 −40°C to +85°C 56-Lead Lead Frame Chip Scale Package [LFCSP_VQ] CP-56-2 AD9601-250EBZ1 CMOS Evaluation Board with AD9601BCPZ-250 1 Z = RoHS Compliant Part.
AD9601
Rev. 0 | Page 32 of 32
NOTES
©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07100-0-11/07(0)