SN65CML100: convert LVPECL to CML

Jerry Chen

Part Number: SN65CML100

Hi,

I would like to use SN65CML100 to convert LVPECL to CML as below figure shows. Where should I add the termination resister for LVPECL?

Thanks.

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 153831 points

Jerry

If you are driving a LVPECL input, you would need 50-Ω resistors on both A and B to a termination bias voltage, VT. VT is usually 2-V below the supply voltage of the driver circuit. When the driver operates from a 3.3-V supply, VT is set to approximately 1.3 V.

Thanks

David

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SN65CML100: convert LVPECL to CML