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ADC32RF45: Digital Multiplexer ADC B to JESD ChA?

David Bayer
Prodigy 190 points
Part Number: ADC32RF45

We have a system limited to a x4 wide JESD link.   

It appears that ADC32RF45 can configure the Digital Multiplexer to route ADC Channel A to both JESD channels.

If we only connect JESD Ch B in our system, then we can effectively select between ADC Channel A and ADC channel B?

  • 0
    TI__Intellectual 785 points

    Hi David,

    Yes, you are correct. Just that you would be getting only one channel's data at a time. Also, when you switch between channels, you would need to wait for DDC chain to flush out the existing data from other channel. The flush time will be dominated by latency of the decimation filter present in DDC path (datasheet provides the filter's latency information in 'table 4 Latency with different Decimation options'.

    Regards,

    Sourabh