Dear e2e Support,
My customer uses several End Equipment in daisychain, including our DS125DF1610 (which are therefore themselves in daisychain).
Chaining 3 or 4 End Equipment give a BER which can go below 1e-11, down to 2e-10.
Note that they are not using the DFE in automatic mode (they are fine tuning their settings, depending the temperature, etc...).
The CDR is reset, as it should be, during the initialization.
They are using 10nF AC cap on the TX. Could that be an issue (vs the usual 0.1µF we recommend)?
Should we get AC couplings on the clocks side (from CLK_MON_P/N to REF_CLK_P/N), when we are on this daisy chain configuration?
Are there other precautions we should take care of in daisychain?
Regards,