I/O Standard when interfacing LMH1219 to an FPGA

Craig Abramson

Other Parts Discussed in Thread: LMH1219

The question says it all. I'm trying to figure out what settings to use on my FPGA's transceivers in order to correctly receive the output of the LMH1219. There's a few options on the FPGA side: LVDS, CML, etc.

Thanks!

Craig

over 9 years ago

0 Michael Lu (Santa Clara) over 9 years ago

TI__Mastermind 29655 points

Hi Craig,

The LMH1219 output is compatible with CML, with the differential voltage on OUT0+/- and OUT1+/- ranging from approximately 400 to 1000 mVpp, depending on the settings applied either by the VOD_DE pin or by the corresponding register.

Regards,

Michael

Interface

Interface forum

I/O Standard when interfacing LMH1219 to an FPGA