TMDS1204: RX termination

Nikita Alisov

Prodigy 140 points

Part Number: TMDS1204

Tool/software:

Hello,

Could you please show how input termination looks? Where is the termination connected? Vcc / some Vbais?

I am asking because I am trying to clarify for myself how RX should work in DC or/and AC coupled modes simultaneously.

There is Figure 6-2, but it doesn't look like TMDS's input diagram.

BR
Nikita

7 months ago

0 J 7 months ago

TI__Genius 14846 points

Hi Nikita,

RX termination is handled internally for TMDS1204. You can control the register to enable/disable it.
Below is the screenshot of the register table:

Please let me know if you have any questions.

Best,

0 Nikita Alisov 7 months ago in reply to J

Prodigy 140 points

Hi J,

Please answer my questions:

1) Where/how is the RX termination connected? Does it connect to Vcc power rail? Does it connect to Vbais power rail?

2) Does it connect to the same point for operation in AC/DC coupled mode?

+1 J 7 months ago in reply to Nikita Alisov

TI__Genius 14846 points

Hi Nikita,

1. It connects to Vcc.

2. It connects to the same point for both operations.

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TMDS1204: RX termination