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To add to Tim's answer, So for frequency hopping spread spectrum (FHSS),when the receiver is unaware of the transmitter's hopping pattern, does that mean the ADC sample rate needs to be higher than twice the entire hopping bandwidth? If you have no interferers in that band, AND know the frequencies and bandwidths, just not the sequence that you use to hop ...


5

So for frequency hopping spread spectrum (FHSS),when the receiver is unaware of the transmitter's hopping pattern, does that mean the ADC sample rate needs to be higher than twice the entire hopping bandwidth? Yes. If I use a 2Msps (4x data BW) ADC it looks like I will still recover my data; sure it under-samples some of MHz modulated frequency but it does ...


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Another approach is to use a lower level interface over RJ45, such as LVDS carrying multiple I2S channels sharing clock. So transmit side would be multiple ADCs clocked together putting I2S into an LVDS transmitter. Receive side has LVDS receiver, recovers the LR clock and data signals to pass to an audio processor.


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