SBAU467A October   2024  – January 2025 ADC32RF55

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Required Hardware
    2. 2.2 Required Software
  8. 3Quick Start Guide
    1. 3.1 Introduction
    2. 3.2 Hardware Setup
    3. 3.3 Software Setup
      1. 3.3.1 ADC32RF5xEVM GUI Installation
      2. 3.3.2 High Speed Data Converter Pro GUI Installation
    4. 3.4 Quick Start Procedure for Bypass Mode
      1. 3.4.1 2x Averaging in Bypass Mode
    5. 3.5 Quick Start Procedure for Complex Decimation Mode
      1. 3.5.1 8x Complex Decimation
      2. 3.5.2 128x Complex Decimation
    6. 3.6 Operating Modes
      1. 3.6.1 Input Comparison
      2. 3.6.2 Quad ADC Mode
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Additional Information
    1. 5.1 Trademarks
  11. 6Related Documentation
  12. 7Revision History

3.1 Introduction

The TRF1305-ADC32RFEVM includes the ADC32RF5x analog-to-digital converter with JESD204B interface, three TRF1305 RF differential amplifiers, the LMK04832 clocking chip, and an FMC connector designed for connection to the readily-available FPGA development boards or to the TSW14J58EVM data capture board.

The FPGA on the capture card requires a device clock and SYSREF signal, the LMK04832 clock device supplies these signals to the FMC connector for that purpose, as well as supplying SYSREF to the ADC.

This document conveys all information needed to bring up both the TRF1305-ADC32RFEVM and TSW14J58EVM data capture board, and get a valid data capture with good FFT results.

The JESD204B interface requires a number of important parameters to be decided in advance of setting up the data link, such as; number of lanes, number of converters, number of samples per frame, and a value K number of frames per multi-frame, among other parameters. Both sides of a JESD204B link must be set up with the same values for all these parameters, or else the FPGA that receives the data is not able to establish a synchronized link.

Note: Getting these parameters inconsistent between ADC and FPGA is perhaps the biggest single reason for an EVM setup to not function as expected.

The GUI installers that come with the ADC32RF5x and the TSW14J58EVM come with configuration files that are meant to enable quick initial setup of a number of basic configurations. TI strongly recommends setting up the EVM and data capture board with a configuration described in this document and getting a working setup before modifying the configuration to be closer to what the end-application requires. In this way, users can know that the hardware is functioning and that there is a working configuration that users can go back to in the event of difficulty developing the configuration.

This document introduces the software that must be installed on a PC, and presents a basic setup for the Bypass and DDC modes available in the TRF1305-ADC32RFEVM. The operating modes explained in this document are:

  • Bypass Mode
    • 2x averaging
  • DDC (decimation)
    • 8x complex decimation
    • 128x complex decimation