Texas Instruments FMC-DAC-ADAPTER

Overview

FMC-DAC-ADAPTER from Texas Instruments is a high-speed data converter adapter card designed to interface TI DAC evaluation modules (e.g., DAC34H84EVM, DAC3283EVM) with Xilinx FPGA evaluation kits via the FMC (FPGA Mezzanine Card) standard. It supports 16-bit DACs operating up to 1250 MSPS, provides impedance-matched analog signal routing, and enables direct clock/data alignment for wideband RF signal generation applications.

For engineers reviewing the FMC-DAC-ADAPTER datasheet, FMC-DAC-ADAPTER pinout, FMC-DAC-ADAPTER application, or FMC-DAC-ADAPTER equivalent, this module is critical for validating high-speed DAC performance in SDR, radar, and broadband communications systems where timing integrity, signal fidelity, and FMC-LPC/HPC compatibility are essential selection criteria.

Technical Context

The FMC-DAC-ADAPTER implements a passive, impedance-controlled interconnect between TI's DAC EVMs and Xilinx development platforms. It routes parallel LVDS or JESD204B digital interfaces (depending on host DAC), differential analog outputs, and synchronized sampling clocks while preserving signal integrity up to 1 GHz analog bandwidth.

It conforms to VITA 57.1 FMC specification for LPC (Low Pin Count) mezzanine cards, supports 1.8 V or 2.5 V I/O voltage levels per bank, and includes on-board termination resistors and ground-signal-ground routing for reduced crosstalk and jitter accumulation in multi-GSPS DAC signal paths.

Key Specifications

Availability

FMC-DAC-ADAPTER is available at Aetrix Electronics and suitable for RF transceiver prototyping, software-defined radio development, and high-speed waveform generation requiring stable component supply, traceable sourcing, and long-term evaluation platform continuity.

Supply support for FMC-DAC-ADAPTER includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in data converters, power management, and interface solutions for industrial, communications, and test equipment markets.

The FMC-DAC-ADAPTER belongs to TI's High-Speed Data Converter Evaluation Ecosystem and was designed to accelerate system-level validation of TI's 16-bit, multi-GSPS DACs in FPGA-based signal processing architectures.

FAQ

What is the primary function of the FMC-DAC-ADAPTER?

The FMC-DAC-ADAPTER serves as a standardized interface bridge that connects Texas Instruments' DAC evaluation modules-such as the DAC34H84EVM and DAC3283EVM-to Xilinx FPGA evaluation platforms via the FMC-LPC connector. It enables full-speed digital and analog signal routing without custom cabling or level-shifting. The FMC-DAC-ADAPTER ensures timing-coherent operation for high-fidelity waveform synthesis and real-time signal analysis in lab and pre-production environments.

Which DAC evaluation modules are compatible with the FMC-DAC-ADAPTER?

The FMC-DAC-ADAPTER is explicitly validated with TI DAC EVMs listed in the source material, including DAC34H84EVM, DAC3484EVM, DAC3283EVM, DAC3282EVM, and DAC5682ZEVM. Compatibility is confirmed through mechanical fit, FMC-LPC pin mapping, and signal routing alignment for both LVDS and JESD204B interfaces. The FMC-DAC-ADAPTER does not support ADC EVMs or non-TI evaluation hardware unless independently verified by the user.

Does the FMC-DAC-ADAPTER include active circuitry or signal conditioning?

No, the FMC-DAC-ADAPTER is a passive interposer board with no active components, clock buffers, or signal regeneration circuitry. It relies on source-synchronous signaling from the host DAC EVM and maintains signal integrity through controlled-impedance PCB layout, proper grounding, and matched-length differential pairs. All timing-critical signals-including DACCLK, DATA, and SYNC-pass through unchanged, preserving the original jitter and phase relationship required for accurate DAC characterization. The FMC-DAC-ADAPTER does not alter voltage levels or protocol encoding.

Can the FMC-DAC-ADAPTER be used with Xilinx Kintex or Virtex evaluation kits?

Yes, the FMC-DAC-ADAPTER is mechanically and electrically compatible with Xilinx evaluation kits featuring an FMC-LPC connector, including the Kintex-7 KC705, Zynq-7000 ZC706, and Kintex UltraScale+ KCU105 boards. Its VITA 57.1 LPC compliance guarantees correct pinout alignment and power rail assignment. Users must verify host board constraints and I/O standards (e.g., LVDS_25, DIFF_HSTL_I_18) match those of the connected TI DAC EVM. The FMC-DAC-ADAPTER itself imposes no FPGA-side configuration requirements.

Is there documentation or reference design available for integrating the FMC-DAC-ADAPTER into a custom system?

Texas Instruments provides integration guides, FMC pinout mapping tables, and schematic snippets for the FMC-DAC-ADAPTER in the supporting documentation for compatible DAC EVMs (e.g., SLAU492 for DAC34H84EVM). These materials detail signal routing, power sequencing, and FPGA constraint examples. While no standalone datasheet exists for the FMC-DAC-ADAPTER, its behavior and interface are fully defined by the TI EVM + Xilinx FMC ecosystem. Engineers should consult the FMC-DAC-ADAPTER section within each relevant DAC EVM user's guide for implementation guidance.