Wideband RF-to-Digital Complex Receiver-Feedback Signal Chain


Design files


This is a wideband complex-receiver reference design and evaluation platform that is ideally suited for use as a feedback receiver for transmitter digital predistortion. The EVM signal chain is ideal for high intermediate-frequency (IF) complex-feedback applications and contains a complex demodulator, TI’s LMH6521 dual-channel DVGA and ADS5402 12-bit 800-MSPS dual-channel ADC. By modifying the onboard filter components, the signal chain is configurable for a variety of frequency plans. The EVM also includes TI’s LMK04808 dual-PLL clock jitter cleaner and generator to provide an onboard low-noise clocking solution. The LMH6521 DVGA gain is controlled through the GUI or alternatively through the high speed connector with an FPGA.

  • Complete RF to digital complex wideband receiver solution
  • Up to 800MHz of contiguous spectrum can be sampled
  • Default configuration of RF input from 1800M to 2400M, options for 700M to 3GHz
  • Onboard DVGA for gain control
  • Easy evaluation platform with TSW1400 and HSDC Pro analysis software
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU127.PDF (351 K)

Reference design overview and verified performance test data

TIDR578.PDF (118 K)

Detailed schematic diagram for design layout and components

SLAR071.ZIP (5031 K)

Detailed schematic diagram for design layout and components

TIDR579.PDF (137 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDR581.ZIP (2754 K)

Detailed overview of design layout for component placement

TIDC404.ZIP (849 K)

Design file that contains information on physical board layer of design PCB

TIDR580.ZIP (2975 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

High-speed ADCs (≥10 MSPS)

ADS5402Dual-Channel, 12-Bit, 800-MSPS Analog-to-Digital Converter (ADC)

Data sheet: PDF
Clock jitter cleaners & synchronizers

LMK04803Low-noise clock jitter cleaner with dual cascaded PLLs and integrated 1.9-GHz VCO

Data sheet: PDF | HTML

SN65LVDS1002-Gbps LVDS, LVPECL & CML to LVDS buffer, repeater & translator

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7671-A, 10-V, low-dropout voltage regulator with enable & RESET with delay

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A801-A, high-PSRR, ultra-low-dropout voltage regulator with low-IQ & enable

Data sheet: PDF | HTML
N-channel MOSFETs

CSD17313Q230-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 32 mOhm

Data sheet: PDF | HTML

LMH6521High Performance Dual DVGA

Data sheet: PDF | HTML
eFuses & hot swap controllers

TPS24005.5-V over voltage protection controller with 100-V input transient protection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide TSW1266 Wideband RF-to-Digital Complex Receiver-Feedback Signal Chain Sep. 03, 2013

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