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Visitor
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Registered: ‎01-27-2013

Reg: ADC (XPS Delta-Sigma ADC) in EDK-SPARTAN6-LX9

Hi,


Am using SPARTAN6-LX9 FPGA and trying to add an ADC to my system (microblaze-PLB). Also am using Xilinx 13.2-embedded edition.
I found the ADC/DAC cores in the IP catalog. While going through the architecture of the ADC core I found that the analog input gets compared to a deltasigma 1 bit DAC output (built-in) and that also DAC output passes through a lowpass filter(RC).

If I want to use the core, should I implement a comparator and a RC filter(low pass) externally (FPGA-MICROBLAZE)???

Else should I go for the PMODS (PmodAD1 - Digilent). Hope I would have to inplement a SPI communication to use the PMOD!!!

Could anyone provide me a solution to start up with?

Thank You,
Manoj

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