AFE7950EVM

AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE

AFE7950EVM

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Overview

The AFE7950 evaluation module (EVM) is an RF-sampling transceiver platform that can be configured to simultaneously support up to four-transmit and six-receive (4T6R) channels. The module evaluates the AFE7950, which is a quad-channel, RF-sampling, analog front end (AFE) with 14-bit, 12-GSPS, digital-to-analog converters (DACs), 14-bit, 3-GSPS, analog-to-digital converters (ADCs), and on-chip integrated phase-locked loop/voltage-controlled oscillator (PLL/VCO) for high-frequency clock generation for DACs and ADCs.

AFE7950EVM has options to use dual digital up converters and down converters in each channel to simultaneously synthesize and digitize multiple wideband signals with high dynamic range. On-chip integrated digital step attenuator (DSA) for the receiver channels and DSA functionality for the transmitter channels is supported.

Eight JESD204B/C-compatible serializer/deserializer (SerDes) transceivers running up to 29.5 Gbps can be used for providing inputs and outputs to/from AFE7950 through the onboard FPGA mezzanine card (FMC) connector. AFE7950EVM includes the LMK04828 clock generator that provides a reference signal to the AFE on-chip PLL and generates the required SYSREF signals for the JESD204B/C protocol. Also included is the option for providing an ultra-low-phase noise external clocking solution.

AFE7950EVM implements an efficient low-dropout (LDO)-less power-management solution using only DC-DC converters for the required power rails.

The design interfaces with the TI pattern/capture card solution (TSW14J56EVM, sold separately), as well as many FPGA development kits.

Features
  • Allows evaluation of 4T6R RF-sampling AFE7950 solutions
  • JESD204B/C data interface to simplify digital interface; compliant up to 29.5-Gbps lane rates
  • Supports JESD204B/C for synchronization and compatibility
  • Option for DC-DC-based LDO-less power-management solution
  • Onboard clocking solution supported with LMK04828 and for generating SYSREF
  • On-chip interpolation/decimation filter inputs/outputs sample data at reduced sample rates and improved signal-to-noise ratio (SNR)

  • AFE7950 EVM
  • USB cable
  • Power cable

RF-sampling transceivers
AFE7950 Four-transmit, six-receive, X-band, RF-sampling AFE with 12-GSPS DACs and 3-GSPS ADCs

 

Buck converters (integrated switch)
TPS54424 4.5V to 17V Input, Current Mode, 4A Synchronous SWIFT™ Step-Down Converter

 

Clock jitter cleaners & synchronizers
LMK04828 Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 2370 to 2630-MHz VCO0.
Important note

AFE7950EVM user's guide, design files, software and other support information are available. Request now

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Evaluation board

TSW14J56EVM – Data capture/pattern generator: data converter EVM with 8 JESD204B lanes from 0.6-12.5Gbps

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Evaluation board

AFE7950EVM – AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE

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TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
Application note Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter Mar. 05, 2021
Certificate AFE7950EVM EU RoHS Declaration of Conformity (DoC) Feb. 15, 2021

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