Evaluation Module Suitable for Wide-bandwidth Communications, Military and Test Apps

(Product News, 8 Sep 2008)

Texas Instruments Inc. (TI) has launched an evaluation module (EVM) that combines TI's 14-bit analog-to-digital converters (ADCs) in an interleaved fashion with a Xilinx Virtex-5 FPGA to create the best-performing high-speed digitizer solution in the market. The FPGA comes pre-installed with SP Devices' proprietary time-interleaving technology to eliminate interleaving spurs, which enhances performance and facilitates rapid system-level evaluation for wireless communications, military, test and measurement applications.

The ADS5474ADX-EVM incorporates two of TI's ADS5474 ADCs, a Xilinx Virtex-5 FPGA and SP Devices' proprietary time-interleaving technology to deliver an 800MSPS ADC solution. The SP Devices' software continuously monitors the system and removes ADC gain, clocking and temperature mismatches to reduce the interleaving spurs below the ADC harmonic spurs. By reducing the interleaving spurs, the software increases spurious free dynamic range (SFDR) from 45.78dBc to 86.44dBc for a 70MHz input signal.

In addition to improved performance for these complex systems, the EVM simplifies evaluation and helps designers bring end systems to market faster. For instance, the continuous monitoring of the ADC's mismatch eliminates the need for an off-line re-calibration routine to account for changes in temperature or other environmental factors, significantly reducing system evaluation and design time.

Click here for more information on Texas Instruments' ADS5474ADX-EVM

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