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HMC7043 IBIS model - LVPECL output differential level

Question asked by si_adrien on Jul 13, 2017
Latest reply on Aug 18, 2017 by si_adrien

Hello,

 

I have done some transient simulations with the HMC7043 IBIS model and the LVPECL AC-Coupling technology for a SYSREF (around 10MHz) and CLOCK (around 800MHz) signals.

The results show a differential output power around 980mV whereas the datasheet indicates around 1.8V.

 

I also had to manually implement the termination network because the term4494 didn’t affect at all my signal.

Wiring_diagram

 

My IBIS file was configure with the following parameters :

IBIS_config

 

Have you got recommendations for me to get a well-functioning channel matching with the values of the datasheet, please ?

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