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why in example"Architectural 112G PAM4 ADC-Based SerDes Model",symbol time is set to 18.8235e-12,which is 106GHz

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xufei wang
xufei wang 2024-7-20，8:40
评论： Walter Roberson 2024-7-21，18:30
1÷18.8235（ps） = 53.125G ，cause is PAM4 ，2* 53.125 = 106.25GHz ，which is not equal to 112

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Walter Roberson
Walter Roberson 2024-7-20，20:48
The previous generation used a signaling rate of 53.125 GBd . This generation is twice that signaling rate.
https://www.ieee802.org/3/ck/public/19_03/sun_3ck_04b_0319.pdf

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