SN75DP130: DP130 Eye test fail

kerr chang

Genius 4075 points

Part Number: SN75DP130
Other Parts Discussed in Thread: TS3DV642

Hi Team

I have use DP130 and Eye test fail. The Output Swing to low.

I have use I2C setting.

05H = FF ( I2C Enable , -9db(HBR) , 18db(HBR2) )

06H = FF ( -9db(HBR) , 18db(HBR2) )

07H = FF ( -9db(HBR) , 18db(HBR2) )

08H = FF ( -9db(HBR) , 18db(HBR2) )

and

0x04 bit 2 = 0

0x15 bit 4:3 = 00 or 11

bit 2 = 1

bit 1:0 = 10

but test still fail.

Have any solution for this fail item?

0 David (ASIC) Liu over 6 years ago

Kerr

Would you please send me the schematic and layout of your design? Have you tried with EQ that is less than the maximum setting?

Thanks
David

0 kerr chang over 6 years ago in reply to David (ASIC) Liu

Genius 4075 points

Hi David

1 : Layout :

Intel SOC to EDP_Channel_A_B_SWITCH_TS3DV642 : 6044~6200mil

TS3DV642 to DP130 : 730~750mil

2 : We have setting 05H-08H for Max , but still fail

05H = FF ( I2C Enable , -9db(HBR) , 18db(HBR2) )

06H = FF ( -9db(HBR) , 18db(HBR2) )

07H = FF ( -9db(HBR) , 18db(HBR2) )

08H = FF ( -9db(HBR) , 18db(HBR2) )

3 : SCH , FYI

0 David (ASIC) Liu over 6 years ago in reply to kerr chang

Kerr

I send you a friendship request, please send me the complete schematic and layout so I can help.

Thanks
David

0 David (ASIC) Liu over 6 years ago in reply to David (ASIC) Liu

Provide support through private message, close the thread.

Thanks
David

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