LMH1983: Tolerance of VCM of XOIn +/- pins

user4779049

Expert 2345 points

Part Number: LMH1983

He Team,

Please advise me on a question bellow.

Q1. How much validation can XOIn+/- input accept when LMH1983 is used in differential input mode?

The datasheet specifies the VCM typ 1.2V (typ) but no Min Max.

Mita

over 8 years ago

0 Tim Chao Li over 8 years ago

TI__Expert 4415 points

Hi Mita-san,

The XOin pins can accept any voltage that does not decrease past 0V or increase past VDD. When the Vcm of the LVDS input to XOin is at 1.2V, the min and max differential input voltages are qualified to be min 247mV and max 454mV as stated in the datasheet. If the Vcm deviates excessively from this value, this range may change.

Regards,
-Tim

0 user4779049 over 8 years ago in reply to Tim Chao Li

Expert 2345 points

Tim-san,

Thank you for the answer.

Mita

Interface

Interface forum

LMH1983: Tolerance of VCM of XOIn +/- pins