CDCE62002: REF_IN clock

Ajay Kumar55

Part Number: CDCE62002

Hi,

I am using CDCE62002 and connecting a 148.5 MHz LVPECL clock. for LVPECL REF_IN recomendation is that it should be AC coupled. so do i need to pull up to 1.9V after ac coupling resistor. for details please see the attchment.

over 8 years ago

0 Shawn Han over 8 years ago

TI__Genius 9920 points

Hi Ajay,

Enternal bias is no needed. VBB had be provided CDCE62002 internal when you select LVPECL type enabled.

Regards,

Shawn

0 Ajay Kumar55 over 8 years ago in reply to Shawn Han

Prodigy 200 points

Hi Shawn,

thanks for your support. do you have any recomandation for ac (CC) couping cap. My input clock is 148.5MHz LVPECL and have connected as shown in attchment.