masudasim Posted January 2, 2013 Report Share Posted January 2, 2013 Hello alli am using FPGA board with ADC Ic and i have to provide clock signals (>40 MHz) from FPGA to ADC and digital output signals from ADC to FPGA.What type of cables should i select for digital clock/data?How much length of above cable i can use or in other words how far FPGA board can be placed from ADC board without clock distortion?Please help meThanks Quote Link to comment Share on other sites More sharing options...
Hero999 Posted January 3, 2013 Report Share Posted January 3, 2013 Hello alli am using FPGA board with ADC Ic and i have to provide clock signals (>40 MHz) from FPGA to ADC and digital output signals from ADC to FPGA.What type of cables should i select for digital clock/data?It depends on the signals i.e. whether they're single ended, differential and the line drivers/amplifiers used.How much length of above cable i can use or in other words how far FPGA board can be placed from ADC board without clock distortion?Please help meThanksIf the cable's impedance is matched the distance is limited by the: standing wave ratio, acceptable delay, signal attenuation and noise. Quote Link to comment Share on other sites More sharing options...
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