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ADC32RF45: One core on 8 lanes

Fosfor
Prodigy 35 points
Part Number: ADC32RF45

Is it possible to use only one ADC core of ADC32RF45 and output data on all 8 JESD lanes, so lowering a link speed to one half? For example running one core at a full resolution, highest speed (14 bits @ 2.5 GSPS) with a speed of 6.25 Gbps on each of 8 lanes.

I didn't found it explicitly stated anywhere and it seems to me not being possible according to the datasheet and discussion here.

Thank you for a confirmation,

Jan

  • 0
    TI__Genius 12780 points
    Hi Jan,

    We are taking a look into this, and will be back with you shortly.

    Regards,

    Dan
  • 0 in reply to dBrock
    TI__Intellectual 785 points

    Hi Jan,

    Device supports maximum of 4 lanes per ADC channel. It can not be programmed to use all 8 lanes for same channel's data.

    In your particular example, 14-bits at 2.5Gsps on 4 lanes/channel would mean a JESD output rate of 12.5Gbps/lane.

    There is no way to reduce it to 6.25Gbps/lane.

    Regards,

    Sourabh