The SMT702 is a PXI Express (opt. Hybrid) Peripheral Module (3U), which integrates two fast 8-bit ADCs, a clock circuitry, 2 banks of 1GByte DDR2 Memory each and a Xilinx Virtex5 FPGA, under the 3U format.
The PXIe specification integrates PCI Express signalling into the PXI standard for more backplane bandwidth. It also enhances PXI timing and synchronisation features by incorporating a 100MHz differential reference clock and triggers. The SMT702 can also integrate the standard 32-bit PXI signalling as an option.
Both ADC chips are identical and can produce 3 Giga-samples per second each, with an 8-bit resolution. The manufacturer is National Semiconductor and the part number is ADC083000. Analog-to-Digital converters are clocked by circuitry based on a PLL coupled with a VCO in order to generate a low-jitter signal. The ADC083000 is capable to achieve 7 bits of ENOB, 44dBs of SNR and 54dBs of SFDR. The full bandwidth is 3GHz. Each ADC integrates settings such as offset and scale factor, which makes the pair of ADC suitable to be combined together in order to make a 6GSPS single Analog to Digita
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