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ADC12DL3200: ADC12DL3200 data bus management

Part Number: ADC12DL3200

Dear Sirs,

in a new design we're using two ADC12DL3200 to acquire 3 RF input channels. The clock frequency
can be selected between 2 and 3 Ghz.

The first ADC has the INA and INB connected to RF input channels and the four data buses are connected to a FPGA.

The second ADC has only the INA connected to the RF input channel and only two data buses are connected to a FPGA.

To design only a one FW IP, I will manage the ADC12DL3200 with the same configuration. The two ADC will be
configured in DUAL CHANNEL mode and:

- in the first ADC, the A and C data buses will manage the INA samples and the B and D buses will
manage INB samples.

- in the second ADC, the A and C data buses will manage the INA samples  while all the lines of B and D
buses that manage the INB input will be floating.

Do you think that the second ADC works correclty?

Do you think that  I must terminated the 12+12+2 differential lines floating ?

Thanks in advance.

Best Regards,

Daniele