Inherent delay when used as a repeater / DRFM

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ispoonfite
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Joined: Tue Aug 11, 2015 8:57 pm

Inherent delay when used as a repeater / DRFM

Post by ispoonfite » Thu Aug 13, 2015 9:42 am

Any thoughts on what the inherent delay would be when used as a DRFM/ repeater? The functional description would be: Rx -> Buffer -> Delay X samples -> Tx

I did check the LMS6002DFN FAQ and they list a 300ns delay for the 5MHz filter and a 10 sample latency on the ADC and DAC.

The end goal is to implement a type of DRFM to emulate channel models with tapped delay lines with delays in the 100's of ns and a lowering of magnitude, with respect to the input signal. Say 3 delay lines with 100, 500 and 1000 ns of delay and 80%, 50% and 10% of magnitude. It would be independent of any type of mod/demod.

Thank you!

Kurt

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