TIDA-00070

FPGA Firmware Project for Measuring Bit Errors in the Output Word of an A to D Converter

TIDA-00070

Design files

Overview

For applications where there are bit errors and resulting sample errors (also called sparkle codes, word errors, or code errors), the ability to measure the Error rates caused by these bit errors is important. This FPGA firmware based application note proposes a method to accurately measure these errors over an indefinite time and provides an example of how this measurement can be done using a simple FPGA platform. Code is available on request for the two examples described in the application note.

Features
  • Understand how Error Rates are specified and what these specifications mean
  • Outline new approach to measuring the sample errors over an indefinite time period to measure the true error rate of an ADC
  • Provide customers the ability to make bit error measurements on their bench under different conditions
  • Firmware is available for low cost FPGA platfrom TI along with simple GUI to monitor the error rates over time
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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.

TIDR316.PDF (82 K)

Detailed schematic diagram for design layout and components

TIDR317.PDF (119 K)

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

TIDC217.ZIP (953 K)

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

TIDU147.PDF (530 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

High-speed ADCs (≥10 MSPS)

ADS4249Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

Data sheet: PDF | HTML
High-speed ADCs (≥10 MSPS)

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

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

TPS769100-mA, 10-V, low-IQ, low-dropout voltage regulator with enable

Data sheet: PDF

Technical documentation

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Type Title Date
User guide TIDA-00070 Verified Design Reference Guide Jan. 23, 2013

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