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Part Number: TDP158
Hi TI Team:
Customer uses tdp158 as HDMI redriver, but there is no DDC_SCL and DDC _ SDA interface at the Customer board, Refer to "tdp158 source side application with DDC snoop mode" on page 43 of the specification for design.The current situation is as follows：
1.Customer board directly connected to HDMI monitor and HDMI display is normal
2.connected to tdp158 board with Customer board and HDMI display is Abnormal
3.Connect the tdp158 board with the computer and the HDMI display is normal
Please give me some suggestion
Would you please share customer board and TDP158 board schematic?
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In reply to David (ASIC) Liu:
Attached is schematic,Please help
In reply to chunqiu lv:
Looking at the schematic, Do the TMDS_CON_DDI2_CTRL_CLK/DATA connect to the source? What is the source DDC voltage requirement, 3.3V or 5V?
For source application, do you have the 2k pullup on the TMDS_CON_DDI2_CTRL_CLK/DATA? I would remove the caps on the TMDS_CON_DDI2_CTRL_CLK/DATA.
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