[SI-LIST] Re: GTL buffers Vref
- From: Samuel Dadel <samuel_dadel@xxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Fri, 30 Aug 2002 13:13:45 -0700 (PDT)
Hi,
We are faced with a similar situation. The Vref nominal is 1.0 Volts, and
upto a certain transition density on the receivers works fine[we have
source synchronous interfaces]. We take it to x-23 PRBS and we start
detecting bit errors. Altering Vref at this point to 0.8 Volts brings down
the bit error level to a reasonable and acceptable level. Someone in the list
suggested high-side ringback? Could that be susceptible to data-transition
density?
--Sam
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