RF/IFs and Audio Amplifiers

Highly integrated solutions for low-voltage, battery-operated applications

RF/IFs and audio amplifi ers

2 RF/IFs and audio amplifi ers

Freq

uenc

y 27 MHz 40.66 to 40.70

MHz

46 to

49 MHz

50, 53 MHz

72, 75 MHz

72 to

76 MHz

169 to

172 MHz

260 to

470 MHz

901-902 MHz

930-931 MHz

940-941 MHz

902-928 MHz

ISM bands

2.4 GHz

ISM band

Ap

plic

atio

ns

Radio-

controlled

cars and

toys

FCC Part

15 periodic

applications

Baby monitors

Wireless

microphones

Model aircraft:

50.xx MHz

53.xx MHz

72.xx MHz

75.xx MHz

Hearing

assistance

devices

Wireless

microphones

Part 15 periodic

applications:

Keyless entry /

OOK

Wireless switches

(US: 315 MHz

Europe: 433.6

MHz )

Family radio

services

(462.5625 -

467.7125 MHz)

902-928 MHz:

Cordless phones

Wireless data and

security

Meter readers

Narrowband PCS:

901-902 MHz

930-931 MHz

940-941 MHz

HAM radio

Cordless phone

Wireless data

Wireless

security

Home

automation

Low-power PCS

HAM radio

NXP RF/IFs and audio amplifi ers operate in the Unlicensed Part 15 frequency allocations

Unlicensed Part 1� frequency allocations

RF/IFs and audio amplifi ers

} RF/IF building blocks} Audio amplifi ers} Rail-to-rail op amps} Wideband variable-gain amplifi ers} Transimpedance and post amplifi ers} Timers

Focus applications

} Walkie-talkies, amateur radios, family radio services} Cordless/wireless phones} Pay TV} Power/gas/water meter readers} Baby monitors and elderly phones} Remote keyless entry (garage door openers or any on/off key switch)} Remote control for lighting (OOK)

3RF/IFs and audio amplifi ers

Our portfolio of highly integrated

solutions for low-voltage, battery-

operated applications, which

includes RF/IF building blocks,

audio amplifi ers, timers, and other

amplifi ers, incorporates the best

of our industry-leading expertise

in wireless technology.

Every product in this category refl ects the know-how gained from a history of RF innovation in cellular communications, peer-to-peer wireless networking, RFID tags, and high-end manufacturing.

The result is a series of RF solutions that bring high integration and superior performance to a wide range of low-voltage, battery-operated wireless applications in the Unlicensed Part 15 frequencies.

Building on a history of RF innovation

Wide selection of package options

All of the ICs are available in a wide range of package options that support miniaturization and increase design fl exibility. We even offer Chip Scale Packaging (CSP), an innovative technique that delivers a footprint nearly as small as the IC itself and many times smaller than a standard SO8 package.

Free design kits

Free application support

We know how vital it is to provide our customers with more than just technology. To make design-in as fast and easy as possible, we support all our specialty analog RF products with ready-made design kits and provide in-depth application support – all absolutely free of charge.

4 RF/IFs and audio amplifi ers

RSSI

RF/IF receiver

Receiver data

Data out

ReferenceXtal oscillator

SPI bus

Demodulator External

quadcircuit

Dual PLL synthesizer

SPDTswitch

RF inputRF filter LNA

Second IF filter Second IF filter

Low-power CPU with internal or external Flash

Osc

SPI

II-C UART

10-bit ADC

RF Filter Second mixer

Second LO

First LO

First mixer

RF filter

LPA VCO

Program port

RS232 Xceiver

User interfaceKeyboard and system statusI2C I/O I2C LED drivers

NXP makes it easy to create an RF transceiver

For the frontend receiver, RF/IF components (or RF MMICs and discrete components) implement an SPDT switch, a low-noise amplifi er (LNA), an RF mixer, and a local oscillator (LO). In the backend receiver, an RF/IF receiver IC serves as the PLL synthesizer, and in the transmitter, the design uses RF MMIC and RF discrete components. To complete the solution, other NXP products, such as microprocessors, UARTs, and I2C products, manage the system and perform user-interface functions.

Sample applications that use the RF transceiver are shown on the following pages.

Typical RF transceiver block diagram

RF transceivers made simple

�RF/IFs and audio amplifiers

Wireless data transceiver for 2.4-GHz and 900 MHz ISM band

Family Radio Services walkie-talkie transceiver

Mute control Speaker ampTDA8541T/N1

RSSI

Recoveredaudio and data

Ref Xtal oscillator

VCO:PBR951BB133BB179

Microphone amp SA5232D

Demodulator

Externalquadcircuit

SPDTswitchBAP64-04/05

RF input RF filterBGA2003LNA

455 kHz

21.4 MHz

440 - 457 MHz

Second IF filter

Low-power CPULPC916

with internal FlashSPI

Comparatorin

Comparatorout

Oscillator

SPI bus

I2C bus

I2C

8-bit ADC

First IF filter Mixer

Second LO 20.945 MHz

First LO:VaricapsBB133BB179

SA612AD/01mixer

RF filter BLT50PA

Data out

User interface

KeyboardLED display

462-467 MHzRx / Tx

SA616DK/01SA58640DK

SA8027DH

RF/IF building blocks: applications

SquelchRSSI Recovered data

Ref Xtal oscillator/modulator

VCOMurataVCO

Demodulator

Externalquadcircuit

SPDTswitchBAP51-02

SPDTswitch

BAP51-02

Antenna switch control

T/Rcontrol

T/Rcontrol

Antenna switch control

RF input RF filter BGA2003LNA

Second IF filter10.7 MHz

110.59 MHz

Second IF filter

Low-power CPUP89LPC916

with internal Flash

SPI

Comparatorin

Comparatorout

TxData out

SPI bus

I2C bus

I2C UART

RxData In8-bit ADC

First IF filter Second Mixer

Second LO 99.89 MHz

First LO

BGA2022mixer

RF filter BGA6589PA

BGA2716LPA

Program portUser interface

KeyboardLED display

2.4-2.5 GHz902-928 MHz

SA636DK/01SA58641DK

SA8027DH

Data transceiver 902-to-928 MHz/868 MHz Full-duplex cordless phone 902-to-928 MHz

RSSI

Mute

Postdetectionfilter

SA58631TK

Referenceoscillator

10.7 MHz

SPI bus

I2C bus

ceramic filters

PA

RSSI squelchoutput

User interface

902 to906 MHz

filter

Rx sideduplexer

Tx sideduplexer

924 to928 MHz

filter

SA58646BD

Low-power CPULPC916

with internal Flash

Comparatorin

SPI

Keypad LCDdriver

Comparatorout

8-bitADCUART

I2C

Push-to-talkMicrophone

TVCO

RVCO

LPA

Dual synthesizer

SPIinterface

Expandor /earphone

amp

Limiter amps

IF amps

LNA +quadmixer

PLLFM

detector

Compressor/microphonedata amp

RSSI

Serial programinterface

Postdetectionfilter

SA58643DPTx / Rx switch Reference

oscillator

10.7 MHz

SPI bus

I2C bus

ceramic filters

PA

Rx data in

RSSI squelchoutput

Data out

User interface

RF RXfilter

RF Txfilter

902 to 928 MHZ or868 MHz

SA58646BD

Low-power CPULPC916

with internal Flash

Comparatorin

SPI

Keypad LCDdriver

Comparatorout

8-bitADC

UART

I2C

Tx data

Tx datainput

Tx / Rx controlTx / Rxcontrol

TVCO

RVCO

LPA

Dual synthesizer

SPIinterface

Data amp

Limiter amps

IFamps

LNA +quadmixer

PLLFM

detector

Compressor/data amp

� RF/IFs and audio amplifiers

Wireless data transceiver for US and European ISM bands

RSSI Receiver data


SPI bus

I2C bus

DemodulatorExternal

quadcircuit

SA58643DP

RF inputRF filter LNA

Second IF filter Second IF filter

Oscillator

SPI

I2C UART

First IF filter Mixer

Second LO

First LO

SA602A/01BGA2022

mixer

RF filter PA

Program port

RS232Xceiver

User interface

Keyboard LED display

SA636DK/01SA58641DK

Low-power CPULPC916

with internal Flash

Comparatorin

Comparatorout

8-bit ADC

Squelch

SA8027DH

SA620DK

SA601DK

902-928 MHz (US)868 MHz (Europe)

OOK receiver using SAW oscillator

RSSI output

Data output

OOK output

SAW oscillator

Demodulator

SA58641DK

Antenna315 MHz (US)433.6 MHz (Europe)

Logic deviceLPC901

Mixer

Transmitter for remote control

RSSI Squelch Receiver data

Data out


SPI bus

DemodulatorExternal

quadcircuit

SA636DK/01SA639DH/01

SA8016DH

315 MHz (US)434 MHz (Europe)RF input

RF filter

21.4 MHz crystal filters

Low-power CPULPC916

with internal Flash

Comparator in

Oscillator

SPI

I2C UART

Comparator out 8-bit ADC

LO

Mixer


SPI bus

SA8016DH

315 MHz (US)434 MHz (Europe)RF output

Program port

RF filter BGA6589

PA Exciter/VCO

PLL synthesizer

Low-power CPULPC916

with internal Flash

User interface RS232Xceiver

Oscillator

SPI

I2C UART

Receiver for remote control

RF/IF building blocks: applications


RF/IF building blocks

Family Description Frequency

range

Bandwidth Voltage (V) Package(s) Application(s)

SA601DK LNA and mixer 1 GHz 900-MHz RF 2.7 to 5.5 SSOP20 } Walkie-talkies

SA620DK LNA, mixer, and VCO 1 GHz 900-MHz RF 2.7 to 5.5 SSOP20

SA602AD/01, SA612AD/01

SA602AN/01, SA612AN/01

LNA, mixer, and oscillator 1 GHz 500-MHz RF 4.5 to 8.0 SO8

DIP8

} Transmitters

} Wireless meter readers

} Wireless local loops

} Police, fire radios

SA606DK/01,SA607DK/01,

SA616DK/01

SA606D/01, SA607D/01,

SA616D/01

Narrowband FM IF receiver with

audio and RSSI op amps

150 MHz 150-MHz RF

2-MHz narrowband IF

2.7 to 5.5 SSOP20

SO20

} Automotive control channel

data module

} Hearing aids

} Remote meter readers

} Wireless trackers

(shipping/receiving)

} Wireless keyboards

SA676DK/01 Narrowband FM IF receiver with audio

and RSSI op amps

100 MHz 150-MHz RF

2-MHz narrowband IF

2.7 to 5.5 SSOP20

SA608DK/01 Narrowband FM IF receiver with

frequency check and buffered outputs

150 MHz 150-MHz RF

2-MHz narrowband IF

2.7 to 5.5 SSOP20

SA58640DK Narrowband FM IF receiver with

frequency check and buffered outputs

100 MHz 150-MHz RF

2-MHz narrowband IF

4.5 to 6.0 SSOP20

SA604AD/01, SA614AD/01 FM IF system for 455-kHz and

10.7-MHz FM IF

1 GHz 25-MHz IF 4.5 to 8.0 SO16 } Secure garage-door

openers

} Wireless receivers

} Optical readers

SA605D/01, SA615D/01

SA605DK/01, SA615DK/01

High-performance mixer and

FM IF system for 455-kHz and

10.7-MHz FM IF

1 GHz 500-MHz RF

25-MHz IF

4.5 to 8.0 S020

SSOP20

SA636DK/01 High-performance mixer and

wideband FM IF system with fast RSSI

and power-down mode

500 MHz 500-MHz RF

25-MHz wideband IF

2.7 to 5.5 SSOP20 } Set-top boxes

} Radar detectors

} Crane remote

} Truck tracker

} High-end audio equipment

for performance halls

} Car toll readers

SA58641DK High-performance mixer and

wideband FM IF system with fast RSSI

and power-down mode

500 MHz 500-MHz RF

25-MHz wideband IF

4.5 to 6.0 SSOP20

SA639DH/01 Mixer and FM IF system with fast RSSI,

power-down mode, post-detector-

filter amplifier, and programmable

data switch

500 MHz 500-MHz RF

25-MHz wideband IF

2.7 to 5.5 TSSOP24 } Patient monitoring systems

SA647DH Narrowband digital IF receiver system

with fast RSSI

150 MHz 2-MHz RF 2.7 to 5.5 TSSOP20 } Digital walkie-talkies

SA630D/01

SA630UK

Single-pole, double-throw (SPDT)

switch

1 GHz N/A 3.0 to 5.0 S08

WL-CSP8

} Antenna switches for

a variety of wireless

applications

} Set-top boxes

SA58643DP Single-pole, double-throw (SPDT)

switch

1 GHz N/A 3.0 to 5.0 TSSOP8

SA58646 UHF/900MHz 1 GHz 10.7MHz Limiting IF &

coilless detector

2.9 to 5.5 LQFP64 } walkie-talkies

} 868 MHz, 902-928 MHz data

transceivers

} 902-928 MHz Full-duplex

cordless phones

} e-metering data transceivers

SA8027DH Low-power dual frac-N PLL synthesizer 2.5 GHz N/A 2.7 to 3.6 TSSOP20 } 500-MHz to 2.5-GHz

wireless equipment

} Cellular phones

} WLAN

} Portable, battery-powered

radio equipment

� RF/IFs and audio amplifiers

Narrowband RF/IF specifications

Device

ICC (max)

(mA)

VCC range

(V)

Mixer gain

(dB)

RSSI dynamic

range (typ)

(dB)

RSSI 1

RFin @ -11� dBm

(Vdc)

RSSI 2

RFin @ -110 dBm

(Vdc)

RSSI 3

RFin @ -�� dBm

(Vdc)

RSSI 4

RFin @ -�0 dBm

(Vdc)

RSSI �

RFin @ -23 dBm

(Vdc)

SA606 4.2 2.7 to 6.0 13.5 to 19.5 90 0.3 typ, 0.8 max 0.7 min to 1.8 max 1.2 min to 2.5 max

SA616 5.0 2.7 to 6.0 11 min 80 0.3 typ, 0.8 max 0.7 min to 2.0 max 1.0 min to 2.5 max

SA676 5.0 2.7 to 6.0 10 min 70 0.5 min to 0.9 max 1.7 typ, 2.2 max

SA58640 6.0 4.5 to 6.0 10 min 70 0.5 min to 1.0 max 1.7 typ, 2.4 max

Wideband RF/IF specifications

Device VCC range

(V)

ICC (max)

(mA)

Data

rate *

SINAD IF

bandwidth

(MHz)

Filter

matching

Audio

& data

pins

Power-

down

mode

Low

voltage

Fast

RSSI

Integrated

RSSI op

amp

Wideband

data out

Post-

detection

amp

SA602/604 4.5 to 8.0 2.4/3.3 @ 6 V 100 kbps -120 dBm / 0.22 μV

RF: 45 MHz

IF: 455 kHz

Tone: 1 kHz

Deviation: 8 kHz

25 455 kHz Yes No No No No No No

SA605 4.5 to 8.0 5.7 @ 6 V 100 kbps -120 dBm / 0.22 μV

RF: 45 MHz

IF: 455 kHz

Tone: 1 kHz

Deviation: 8 kHz

25 455 kHz Yes No No No No No No

SA636 2.7 to 5.5 6.5 @ 3 V 1.2 Mbps -111 dBm / 0.54 μV

RF: 240 MHz

IF: 10.7 kHz

Tone: 1 kHz

Deviation: 125 kHz

25 10.7 MHz No Yes Yes Yes Yes Yes No

SA58641 4.5 to 5.5 7.5 @ 5 V 1.2 Mbps -95 dBm

RF: 240 MHz

IF: 10.7 kHz

Tone: 1 kHz

Deviation: 125 kHz

25 10.7 MHz

IF

No Yes No Yes Yes Yes No

SA639 2.7 to 5.5 8.3 @ 3 V 2 Mbps -111 dBm / 0.54 μV

RF: 110.592 MHz

IF: 9.8 kHz

Tone: 576 kHz

Deviation: 288 kHz

25 10.7 MHz No Yes Yes Yes Yes Yes Yes

RF/IF specificationsD

evic

e

Pac

kag

e

Sup

ply

vo

ltag

e ra

nge

(V)

Stan

db

y cu

rren

t (t

yp)(m

A)

Rec

eive

r en

able

d s

upp

ly

curr

ent

typ

(mA

)

Rec

eive

r/tr

ansm

itte

r su

pp

ly c

urre

nt t

ype

(mA

)

LNA

/mix

er v

olt

age

gra

in

typ

(dB

)

IF/l

imit

er g

ain

typ

(dB

)

RSS

I dyn

amic

ran

ge

typ

(d

B)

Co

illes

s d

etec

tor

freq

uenc

y ra

nge

(MH

z)

RF

freq

uenc

y ra

nge

(MH

z)

Ref

eren

ce o

scill

ato

r fr

eque

ncy

rang

e (M

Hz)

Pro

gra

mm

able

clo

ck

div

ider

wit

h b

uffe

red

o

utp

ut d

ivid

e ra

tio

s

Imag

e re

ject

mix

er

Tx &

Rx

VC

Os

use

exte

rnal

ind

ucto

rs

Co

mp

and

er

Car

rier

det

ect/

bat

tery

d

etec

t

Pro

gra

mm

able

dat

a am

plifi

er (s

licer

)

Mic

rop

hone

pre

amp

Mo

dul

atio

n in

put

3-w

ire

seri

al b

us

SA58646 LQFP64

(BD)

2.9 to 5.5 1 55 72 22 90 68 No 7.0-15 300-1200 4.0-20 2, 2.5, 4,

1, 128

• • • • • • •

UHF/900 MHz wireless transceiver

* Approximate maximum data rate. With some modifications, higher data rates are possible.


Audio amplifiers

Type number Description Package(s) Applications

TDA1308/N2 TDA1308T/N2 TDA1308TT/N2

Headphone driver DIP8 SO8 TSSOP8

} Portable consumer products }Cellular phones } PDAs } Headphones } Hearing aids } Monitors } Notebooks } LCD TV

TDA1308ATT/N2 TDA1308AT/N2

Low-voltage headphone driver TSSOP8 SO8

TDA1308AUK Low-voltage headphone driver WL-CSP8

TDA8541T/N1 1-W BTL audio amplifier SO8 } Portable consumer products } Personal computers } Telephony

TDA8542AT/N1 2x1.5-W BTL audio amplifier SO20 } Portable consumer products } Personal computers } Motor-driver (servo)

TDA8542TS/N1 2x0.7-W BTL audio amplifier SSOP20

TDA8543T/N1 1.4-W BTL audio amplifier SO16

TDA8547TS/N1 2x0.7-W BTL audio amplifier with output channel switch

SSOP20 } Telecommunication equipment } Portable consumer products } Personal computers } Motor-driver (servo) } Walkie-talkies

SA58631TKSA58632BS

3-W BTL audio amplifier 2x2.2-W BTL audio amplifier

HVSON8HVQFN20

} Portable consumer products } Personal computers } Professional & amateur mobile radio} USB speakers } Portable gaming } Educational toys

SA58670BS 2 x 2-W Class D audio amplifier HVQFN20 } Portable consumer products } Cellphone speaker/phone drivers } USB speakers } MP3 players } iPod speakers

SA58671UK 2 x 1.3-W Class D audio amplifier WL-CSP16 } Portable consumer products } Cellphone speakerphone/headphone drivers } USB speakers } MP3 players } iPod speakers

Type number Description Package(s) Applications

NE/SA/5232N/01 NE/SA/5232D/01

Low-voltage dual rail-to-rail op amp DIP8 SO8

} Automotive electronics } Signal conditioning and sensing amplification } Portable instrumentation } Test and measurement } Medical monitors and diagnostics } Remote meters } Audio equipment } Security systems } Communications } Pagers } Cellular telephone } LAN } 5-V datacom bus } Error amplifier in motor drives } Transducer buffer amplifier

NE/SA5234N/01 NE/SA5234D/01

Low-voltage quad rail-to-rail op amp DIP14 SO14

Amplifiers and timers

Rail-to-rail op amps

10 RF/IFs and audio amplifiers

Wideband variable gain amplifiers

Type number Description Package Applications

SA5209D Low-voltage wideband variable gain amplifier SO16 } Linear AGC systems

} Very linear AM modulator

} RF balun

} Cable TV multi-purpose amplifier

} Fiberoptic AGC

} Radar

} User-programmable fixed-gain block

} Video

} Satellite receivers

} Cellular communications

SA5219D Cascadable low-voltage wideband variable

gain amplifier

SO16

Transimpedance and post amplifiers

Type number Description Package Applications

SA5211D Transimpedance amplifier (180 MHz) SO14 } Fiberoptic receivers (analog and digital)

} Current-to-voltage converters

} Wideband gain block

} Medical and scientific instrumentation

} Sensor preamplifiers

} Single-ended-to-differential conversion

} Low-noise RF amplifiers

} RF signal processing

SA5212AD Transimpedance amplifier (140 MHz) SO8

SA5214D Post amplifier with link status indicator SO20 } Fiberoptics

} Communication links in industrial and/or telecom

environment with high EMI/RFI

} Local area networks (LANs)

} Metropolitan area networks (MANs)

} SONET

} RF limiter

SA5217D Post amplifier with link status indicator SO20 } Fiberoptics

} Communication links in industrial and/or telecom

environment with high EMI/RFI

} Local area networks (LANs)

} Synchronous optical networks (SONET) STS-1

} RF limiter

} 223-1 pseudo-random bit stream

Type number Description Temperature range (°C) Package(s)

AU7555D/01 CMOS timer -40 to +125 SO8

ICM7555D/01

ICM7555N/01

CMOS timer 0 to +70 SO8

DIP8

ICM7555ID/01

ICM7555IN/01

CMOS timer -40 to +85 SO8

DIP8

Timers

Amplifiers and timers

11RF/IFs and audio amplifi ers

RF – Radio Frequency

The carrier frequency or the frequency of the propagation

media (e.g. air, cable, wireline, etc.).

IF – Intermediate Frequency

A frequency lower than the RF and generally the

frequency at which demodulation/modulation is

performed.

Down conversion

Conversion of the RF or IF frequency to a lower IF

frequency by a mixer/local oscillator (LO).

Up conversion

Conversion of the IF frequency to a higher IF or RF

frequency.

FM – Frequency Modulation

The RF signal is changed in frequency by the modulating

signal (e.g. voice, data).

FM receiver

Uses a limiting IF and a quadrature demodulator to

recover the modulating signal.

Quadrature demodulator

Used to recover the modulating signal while minimizing

the IF signal.

RF glossary

DBM – Double Balanced Mixer A special circuit that outputs the sum and difference signal while minimizing the RF and LO signals.

LO – Local OscillatorDerived from an external active device or an on-chip transistor oscillator.

Image Frequency An unwanted RF frequency at the mixer input that gives the same IF frequency at the mixer output as the desired RF frequency.

Single Conversion/Dual Conversion Some receivers use one IF (single conversion). A dual-conversion receiver downconverts twice (to two different IFs) to enable better fi ltering of image frequencies.

NBFM – Narrowband FMUsed in voice and low speed data (<9.6 kbps).

WBFM – Wideband FMUsed in broadcast radio and high-speed data (>10 kbps).

SensitivityThe minimum input signal required for a receiver to deliver an acceptable output.

SelectivityThe ability of a receiver to pass the desired frequency and reject all others.

www.nxp.com

© 200� NXP B.V.

All rights reserved. Reproduction in whole or in part is prohibited without the prior written

consent of the copyright owner. The information presented in this document does not

form part of any quotation or contract, is believed to be accurate and reliable and may be

changed without notice. No liability will be accepted by the publisher for any consequence

of its use. Publication thereof does not convey nor imply any license under patent- or other

industrial or intellectual property rights.

Date of release: November 2006

Document order number: 9397 750 15672

Printed in the Netherlands

Documents

RF/IFs and Audio Amplifiers