Model 5242 (147)
Model 5342 is a multichannel, high-speed data converter suitable for connection to HF or IF ports of a communications system. It includes four A/Ds with one upconverter and D/A converter. The 5342 features built-in support for PCI Express (PCIe) Gen. 2 over the 3U VPX backplane. A unique fabric-transparent crossbar switch configuration adds gigabit serial data paths for Xilinx Aurora or Serial RapidIO applications.
*Complete software radio interface solution for 3U VPX systems *Supports Gigabit Serial Fabrics including PCI Express, Serial RapidIO and Xilinx Aurora *Four 125 MHz 14-bit A/Ds *One digital upconverter *One 500 MHz 16-bit D/A *Two Xilinx Virtex-4 FPGAs *Up to 768 MB of DDR2 SDRAM *LVDS clock/sync bus for multiboard synchronization *Optional factory-installed IP Cores available * Up to 32 pairs of LVDS connections to the Virtex-5 FPGAs for custom I/O *3U VPX form factor provides a compact, rugged platform *Compatible with several VITA standards including: VITA-46 (VPX Baseline Standard) VITA-48 (VPX REDI) VITA-65 (OpenVPXTM System Specification)
A/D Converter Stage
The front end accepts four full scale
analog HF or IF inputs on front panel MMCX
connectors at +10 dBm into 50 ohms with
transformer coupling into Linear Technology
LTC2255 14-bit 125 MHz A/Ds.
The digital outputs are delivered into a
Virtex-4 FPGA for signal processing or for
routing to other module resources.
Digital Upconverter and D/A Stage
The 5342 features a TI DAC5686 digital
upconverter (DUC) and D/A. It accepts a baseband
real or complex data stream from its
FPGA with signal bandwidths up to 40 MHz.
When operating as an upconverter, the
DAC5686 interpolates and translates real
or complex baseband input signals to any
IF center frequency between DC and 160MHz. It delivers real or quadrature (I+Q)
analog outputs up to 320 MHz to the 16-bit
D/A converter. If translation is disabled, the
DAC5686 acts as an interpolating 16-bit D/A
with output sampling rates up to 500 MHz.
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