2 65MSPS 14 bit ADC's and DAC's, 2 Million gate Virtex E FPGA - HSA

Overview
The HSA module was designed as a development platform for a wide variety of wireless/digital radio (SDR) applications. But with its high speed, high resolution I/O and its 1 or 2 million gate Virtex E FPGA, the applications are limitless.

The two input channels employ Analog Devices AD6644 A/D converters (ADC) for an unprecedented 14 bit digitization out to 65 MHz (80 MHz soon to be released.)

The input signal processing chain consists of 50 Ohm input termination, a high speed low distortion input amp, followed by a 7th order low-pass filter into the A/D converters. The two's complement data from the A/D converters clock into FPGA FIFOs.

In phase and quadrature clocks can be provided to the two A/Ds providing decoding or demodulation of intermediate frequency (IF) signals using the on-board dual channel DDS.

The two analog outputs commission Analog Devices AD9764 14 bit, 100 MSPS D/A converters (DAC). Each channel is completely independent and includes a 7 th order low-pass filter, an output buffer amp and has a single-ended output matched to 50 Ohms. The DAC's are fed from FIFOs and clocked by the onboard DDS, at up to 80 MHz. The DAC FIFO levels are monitored in a FIFO status register and may be used to trigger interrupts to the host card.

HSA FPGA and ADC/DAC Board

Data Sheet [PDF]

Block Diagram [Flash]

Fits on

ChicoPlus CompactChicoPlus M6x/cM6x SBC6x with USB SBC6711 with USB SBC6713e with EtherNet