AFE7222EVM

AFE7222 Evaluation Module

AFE7222EVM

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Overview

The AFE7222EVM is a circuit board that allows designers to evaluate the performance of Texas Instruments' two-channel AFE7222, a low power analog front end mixed-signal transceiver. The AFE7222 contains dual 12-bit 65MSPS ADCs and dual 12-bit 130MSPS DACs, along with 2x/4x interpolation, /2 decimation, independent 32-bit TX/RX complex mixers, quadrature modulation correction and auxiliary monitoring/control ADC/DACs.

The EVM provides a flexible environment to test the AFE7222 under a variety of clock, data input and IF or RF output conditions. For ease of use as a complete RF transmit solution the AFE7222EVM includes the CDCE72010 clock generator/jitter cleaner for clocking the AFE7222 as well as a TRF370333, a 350 MHz to 4 GHz quadrature modulator, for up converting I/Q outputs from the DAC to real signals at RF. The dual ADC in the AFE7222 is driven from transformer-coupled IF inputs for flexible receiver evaluation and measurements. The ADC input path can be configured for DC-coupled complex baseband inputs as well.

The EVM can be used along with the TSW1400 (or TSW1405, TSW1406) to perform transmit system prototyping along with the AFE7222 integrated dual DACs. The TSW1400 generates the test patterns which are fed to the AFE7222 through a serial LVDS port. The CDCE72010 clock chip can be used to synchronize the TSW1400 board to AFE7222EVM. The TSW1400 can be used to capture data from the AFE7222 integrated dual ADCs for FFT analysis.

The AFE7222EVM is also compatible with Xilinx and Altera FPGAs EVMs and design kits for rapid evaluation and prototyping. The AFE7222EVM includes an HSMC input for direct connection to HSMC compatible Altera FPGA EVMs for DAC input patterns, and the HSMC-ADC-BRIDGE can be ordered for ADC data capture using Altera FPGA EVMs. The FMC-DAC-ADAPTER and FMC-ADC-ADAPTER boards available from TI enable the connection of the AFE7222EVM to the FMC headers on Xilinx EVMs.

Features
  • Comprehensive test capability for the AFE7222 for ZIF, IF and RF transmit outputs
  • AFE7222 ZIF or IF ADC receive testing (optional TRF371125EVM can be purchased for RF-to-bits ZIF receiver)
  • Direct connection to TSW1400 pattern generator and capture card (or TSW1405, TSW1406)
  • Includes CDCE72010 for clock generation or jitter cleaning
  • Includes TRF370333 for complete transmitter evaluation
  • Software support with a full featured GUI for easy testing and prototyping
  • Optional FMC-DAC-Adapter and FMC-ADC-Adapter cards to connect with FMC interconnect headers on Xilinx FPGA EVMs
  • Direct connection to Altera FPGA EVMs for DAC transmit, and via optional HSMC-ADC-BRIDGE for ADC receive
  • LDO or DC/DC power supply options
High-speed ADCs (>10MSPS)
AFE7222 Dual-Channel 12-Bit 65MSPS ADC and 130MSPS DAC With Auxiliary ADC and DACs

 

Clock generators
CDCE72010 10 outputs low jitter clock synchronizer and jitter cleaner

 

IQ demodulators
TRF371125 0.7 - 4.0 GHz Wide Bandwidth Integrated Direct Down Conversion Receiver

 

IQ modulators
TRF370333 350 MHz to 4.0 GHz Quadrature Modulator, 3.3V common-mode voltage

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Evaluation board

AFE7222EVM – AFE7222 Evaluation Module

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Design files

AFE722XEVM Design Package - Board rev C SLAC674.ZIP (6132 KB)

Technical documentation

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Type Title Date
* User guide AFE722xEVM User's Guide Feb. 05, 2013
Certificate AFE7222EVM EU Declaration of Conformity (DoC) Jan. 02, 2019
User guide AFE722XEVM-DesignPkg - rev B board Nov. 10, 2011

Related design resources

Hardware development

EVALUATION BOARD
TSW1400EVM Data Capture/Pattern Generator: Data Converter Evaluation Module With 8 LVDS Lanes up to 1.5Gbps
DAUGHTER CARD
HSMC-ADC-BRIDGE High Speed ADC to HSMC (Altera) Header Adaptor Card
INTERFACE ADAPTER
FMC-ADC-ADAPTER High Speed ADC to FMC (Xilinx) Header Adapter Card FMC-DAC-ADAPTER High Speed DAC to FMC (Xilinx) Header Adapter Card

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