raymond_luo2003
Member level 1
prbs 2e7 prbs 2e7-1
Dear all,
I read many papers regarding on the BER test of SerDes link. Different papers use different PRBS sequence 2E7-1; 2E11-1; 2E15-1; 2E23-1 to test their BER. For a same link, different PRBS will result in different BER, e.g. 10E-12 or10E-7.
Does anyone can help me understand which PRBS sequence should use in a typical link, say fibre or USB SerDes? Why should I choose one instead of another one? What’s kind of result should I expect if I select a particular PRBS? The rule for choosing particular PRBS is related to eye-diagram of transmitter or receiver? Is that related to the bandwidth of PLL or CDR used in SerDes?
Thanks in advance!
Raymond
Dear all,
I read many papers regarding on the BER test of SerDes link. Different papers use different PRBS sequence 2E7-1; 2E11-1; 2E15-1; 2E23-1 to test their BER. For a same link, different PRBS will result in different BER, e.g. 10E-12 or10E-7.
Does anyone can help me understand which PRBS sequence should use in a typical link, say fibre or USB SerDes? Why should I choose one instead of another one? What’s kind of result should I expect if I select a particular PRBS? The rule for choosing particular PRBS is related to eye-diagram of transmitter or receiver? Is that related to the bandwidth of PLL or CDR used in SerDes?
Thanks in advance!
Raymond