SN65LVDS125A: output waveform is not symmetrical

Part Number: SN65LVDS125A

dear TI buddy

my customer used SN65LVDS125A to design a lvds project, but the output waveform is not symmetrical,besides,the output amplitude(Vpn) is only 100mv when i connect the LCD panel,if disconnect the LCD,the output ampitude is about 300mv.

the attachment is schematic and the output waveform.

can you help me explain why like this? and how should i resolve the issue.

thanks.

best regards

Cickey Xu20150706162546SG205-J0-304.pdf

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