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MILITARY AND AEROSPACE SOLUTIONS GUIDE

Military and Aerospace electronics systems continue to demand increasing performance and throughput at the highest frequencies. These demands, together with stringent limitations on power consumption, size, weight, and of course, cost, are accelerating the adoption of new digital architectures for signal acquisition and generation.

Inphi solutions are powering next-generation Military and Aerospace systems with advanced digital architectures that simplify expensive, power hungry RF front ends. Inphi offers the most complete portfolio of high performance digital, analog, and mixed signal products for designs from DC to 50 GHz.

01Monobit Receiver

SOLUTION EXAMPLESThe following solution examples illustrate some of these advanced digital architectures:

01020304

Monobit Receiver

Direct Conversion Receiver

Digital Spectrometer

Phase Locked Loop

High Speed Digital Pattern Generator and Digitizer

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01

Measurement of simultaneous frequenciesSmaller size and lighter weightLower cost and power

In conventional Electronic Warfare (EW) orElectronic Countermeasure (ECM) systems,Instantaneous Frequency Measurement (IFM)receivers measure the frequency of a radar pulsein real time. However, due to the architecturesof these systems, it is difficult to measure twosimultaneous frequencies.

Monobit Receivers were developed to address this problem. A monobit receiver is a single-bit analog to digital converter, plus advanced digital signal processing (DSP) algorithms to extract the frequency and phase information. A key enabling technology for monobit receivers is the monobit analog-to-digital converter (ADC), as it determines the maximum input signal frequency and measurement bandwidth.

The advantages of monobit receivers vs. IFM receivers include:

applications. They include:

25706CP and 25707CP 25 Gbps Monobit ADC

23 GHz analog bandwidth

Highest performance monobit ADC in the industry

13606CP and 13607CP 13 Gbps Monobit ADC

23 GHz analog bandwidth

1385DX 12.5 Gbps Monobit ADC + 1:8 Demultiplexer

14 GHz analog bandwidth

Integrated 1:8 demultiplexer for ease of interface to FPGA or DSP

5081DX 50 GHz 1:4 Demultiplexer

RF SignalIn

FPGA or DSP forDiscrete FourierTransform and

Decision Threshold

Sampling ClockUp to 12.5 GHz

8

Inphi 1385DXMonobit ADC +

1:8 DeMux

LimitingAmp

Anti-AliasBandpass

Filter

02

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi25706CP

Monobit ADC

LimitingAmp

Sampling ClockUp to 25 GHz

RF SignalIn

FPGA orDSP forDiscreteFourier

Transformand

DecisionThreshold

Inphi 5081DX1:4 DeMux

Anti-AliasBandpass

Filter

The 1385DX Demultiplexer with Integrated Monobit ADC in a Monobit Receiver.

The 25706CP Monobit ADC and the 1385DX Demultiplexer in a Monobit Receiver.

02Direct Conversion Receiver

Inphi1821TH

THAADC

15 GHz 20 MHz

LNA

Inphi offers the highest performance, commercially available Track and Hold Amplifiers in the industry. They include: 1821TH 18 GHz Bandwidth THA

18 GHz analog bandwidth

2 GS/s sampling rate

6.6 ENOB at 5 GHz

1321TH 13 GHz Bandwidth THA

13 GHz analog bandwidth

2 GS/s sampling rate

20 MHz15 GHz 1 GHz

LO1

LNA ADC

LO2

BPF BPFBPF DSP/ASIC

BPF DSP/ASIC

03

Traditional Receiver Chain Using Multiple IF Stages.

Direct Conversion Receiver Using Inphi 1821TH.

A traditional receiver uses multiple IF stages, with mixers, local oscillators (LOs), filters, etc. Inphi’s high bandwidth Track and Hold Amplifiers (THA), with input analog bandwidth of up to 18 GHz, enable direct conversion receiver architectures by extending the input analog bandwidth of commercially available ADCs. This results in systems with less lower power, smaller size, and lower cost.

03Digital Spectrometer

04

300 GHz Center Freq.6 GHz BW

3-9 GHz IFEach THA/ADC Clocked

at 2 GHz to Subsample IF

LO1

LNABPF

Inphi1821TH

THAADC DSP/ASIC/ASICDSP/BPF

ADC DSP/ASIC/ASICDSP/FPGADSP/

Digital Spectrometer Using Inphi 1821TH.

DSP/FPGA

Inphi1821TH

THABPF

The next generation of radio telescopes, with large arrays of smaller antennas, is driving much higher computational and interconnect bandwidths. However, traditional radio astronomy instrumentation is highly customized for

software to perform analyses such as beam forming and wide band spectroscopy.

An essential element of these systems is a high speed digital spectrometer that directly digitizes the downconverted IF

enables these next generation digital spectrometers to operate with higher bandwidth, higher resolution, lower power, and lower cost.

04Phase Locked LoopPhase locked loops (PLL) are used for many high speed communications applications such as frequency synthesizers, clock and data recovery, and frequency multipliers. In the highest performance applications, discrete prescalers (frequency dividers) are used to support frequencies beyond the range of integrated PLL chips.

Inphi’s prescalers offer the highest frequency range, lowest phase noise, lowest power, and highest input sensitivity. They include:

25671DV DC to 25 GHz Divide-by-2 Prescaler

25675DV DC to 25 GHz Divide-by-4 Prescaler

25673DV DC to 25 GHz Divide-by-8 Prescaler

50718DV 50 GHz Divide-by-2 and 4 Prescaler

50728DV 50 GHz Divide-by-8 Prescaler

Inphi25671DV

Divide-by-2Prescaler

ReferenceFrequency

VCOOutput

FrequencyLoopFilter

PhaseDetector

Phase Locked Loop for Frequency Multiplier Using Inphi 25671DV.

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05High Speed Digital Pattern Generator and Digitizer

high speed digital building-block products from 10 Gbps to 50 Gbps. They include:

5080MX 50 Gbps 4:1 Multiplexer

5081DX 50 Gbps 1:4 Demultiplexer

50700DF and 50701DF 50 Gbps D Flip-Flop

2080MX 20 Gbps 4:1 Multiplexer

1385DX 12.5 Gbps 1:8 Demultiplexer

20708SE and 20709SE 20 Gbps 2:1 Selector

Inphi50701DF

D Flip-Flop

Inphi 2080MX4:1 Mux

Inphi 2080MX4:1 Mux

Inphi 2080MX4:1 Mux

Inphi 2080MX4:1 Mux

FPGA withLVDS

Outputs

Inphi 5080MX4:1 Mux

DigitalPatternup to 50

Gbps

Mux SyncCircuitry

FPGAwithLVDSInputs

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

Inphi 1385DX1:8 DeMux

DigitalPatternup to 50

Gbps

Inphi50701DF

D Flip-Flop

Inphi 5081DX1:4 DeMux

06

Digital Pattern Generator Using Inphi’s Multiplexer Products.

High Speed Digitizer Using Inphi’s Demultiplexer Products.

A high performance pattern generator that can generate arbitrary digital patterns is commonly used in R&D and testing applications to stimulate, debug, and test digital signal processing systems. Inphi’s high speed multiplexer solutions enable digital pattern generation at up to 50 Gbps.

The high speed digitizer, the counterpart to the digital pattern generator, is the workhorse of high speed electronics systems. Inphi’s high speed demultiplexer solutions enable digital data acquisition at up to 50 Gbps.

Inphi Product PortfolioInphi’s high performance portfolio includes the following product families, with speeds from 10 GHz to 50 GHz:

High Speed Digital

Clock and data fan-out

Logic gate

Multiplexer and demultiplexer

Broadband Analog

Monobit ADC

Amplifier

Track and hold

Microwave

Prescaler

Frequency doubler

Inphi has a strong history of providing products and solutions to the Military and Aerospace markets. For more specific information, please contact Inphi at products@inphi-corp.com.

Inphi Corporation Headquarters2393 Townsgate, Suite 101, Westlake Village, CA 91361Phone: (805) 446-5100, Fax: (805) 446-5190www.inphi-corp.com

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