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Altera_Forum
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15 years ago

Transceiver Pseudo-CML equivalent circuit?

I'm currently testing with the Stratix IV GX development kit and would like to know if anyone has details on the equivalent circuit for the transmitter. A CML driver typically consists of a dif...
Altera_Forum's avatar
Altera_Forum
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15 years ago

Hello Dave,

I must admit, that I've only limited experience with Altera gigabit transceivers. I did a PCIe customer project, but I'm more familiar with sub-gigabit LVDS interfaces. I try to keep informed about available technologies, however.

I notice, that utilizable receiver common mode voltages are speed dependant, you get optimal performance in a smaller range. Furthermore, they are affected by P,V,T variations. In so far, you can't but rely on specifications.

Regards,

Frank