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Does ADCs in RF SOC chip give data in parallel or through mux?

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Explorer
Posts: 240
Registered: ‎06-19-2014
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Does ADCs in RF SOC chip give data in parallel or through mux?

Just to confirm, as you can see in attached picture from UG1287, does all 8 ADCs in ZYNQ RF SOC chip give data in parallel or do we need to have channel selection mux? Can we use data of all 8 channels in PL simultaneously?
Capture.PNG

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Scholar
Posts: 2,772
Registered: ‎04-26-2015

Re: Does ADCs in RF SOC chip give data in parallel or through mux?

As far as I can tell, everything other than the ADCs in that diagram is just implemented in the programmable logic. The channel selection mux is used there (in UG1287) to allow a fairly simple system. This is entirely appropriate as it's just an evaluation kit. Once you get the hang of the RFSoC you're expected to discard the evaluation design and build your own that's more suited to your task, using all eight ADCs in parallel.

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Scholar
Posts: 2,772
Registered: ‎04-26-2015

Re: Does ADCs in RF SOC chip give data in parallel or through mux?

As far as I can tell, everything other than the ADCs in that diagram is just implemented in the programmable logic. The channel selection mux is used there (in UG1287) to allow a fairly simple system. This is entirely appropriate as it's just an evaluation kit. Once you get the hang of the RFSoC you're expected to discard the evaluation design and build your own that's more suited to your task, using all eight ADCs in parallel.

Posts: 598
Topics: 2
Kudos: 156
Solutions: 79
Registered: ‎04-18-2011

Re: Does ADCs in RF SOC chip give data in parallel or through mux?

Each ADC chanel has its own AXI streaming interface so you can have independent data paths for each ADC channel. As the previous poster says this is just a design to allow you to evaluate the data converters. This mechanism is to allow storing of ADC data captures to be analysed by the TRD gui.
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