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TIDA-00069

FPGA Firmware Example of How To Interface Altera FPGAs to High-Speed LVDS-Interface Data Converters

Design files

TIDA-00069

Design files

Overview

This reference design and the associated example Verilog code can be used as a starting point for interfacing Altera FPGAs to Texas Instruments' high-speed LVDS-interface analog-to-digital converters (ADC) and digital-to-analog converters (DAC). The firmware implementation is explained and the required timing constraints are discussed.

Features
  • This design is Firmware only and is discussed in detail to aid understanding
  • Example Verilog code is an easy starting point for FPGA to high-speed data converter applications
  • Design is easily expanded to other TI high-speed data converters
  • The ADC and DAC portions are split in case only one is required
  • Interface timing constraints are discussed in detail for the DAC and ADC
  • Firmware was tested using readily available TI EVMs
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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.

download Schematic — TIDA-00069
TIDR311.ZIP (815 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDA-00069
TIDR312.ZIP (191 K)

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

Products

Includes TI products in the design and potential alternatives.

High-speed ADCs (≥10 MSPS)

ADS4249 — Dual-Channel, 14-Bit, 250-MSPS Analog-to-Digital Converter (ADC)

Data sheet: PDF | HTML
High-speed DACs (>10 MSPS)

DAC3482 — Dual-Channel, 16-Bit, 1.25-GSPS, 1x-16x Interpolating Digital-to-Analog Converter (DAC)

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

TPS74201 — 1.5-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

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

TPS74401 — 3-A, low-VIN (0.8-V), low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator

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

TPS74701 — 500-mA, low-VIN (0.8-V), adjustable ultra-low-dropout voltage regulator with power good & enable

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

TPS796 — 1-A, low-dropout voltage regulator with enable

Data sheet: PDF | HTML

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Software

Technical documentation

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Type Title Date
User guide Interfacing Altera FPGAs to ADS4249 and DAC3482 (TIDA-00069 Reference Guide) Jul. 10, 2012

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