HD3SS215 and SN65DP141 schematic review

Sean ZHang35753

Intellectual 2060 points

Other Parts Discussed in Thread: HD3SS215

Hi,

My customer CZC used HD3SS215 and SN65DP141 on one IPC project, attached files are schematic, could you please help review the schematics and comment?

for HD3SS215,

1> Do you suggest customer to add common choke on A/B ports?

2> there is not series cap for all differential signals, are the series caps needed? if yes, which side need to have the caps (sink or source)?

3> Can all AUXxx signals be used?

For SN65DP141,

I have not reference schematic on hand, please help review and comment.

HDMI Switch HD3SS215.pdf

DP Redriver SN65DP141.pdf

Best Regards

Sean Zhang

over 10 years ago

0 Moises Garcia over 10 years ago

TI__Mastermind 23815 points

Hi Sean,

I'm reviewing you files, I'll come back we I have feedback about them.

Regards

0 Moises Garcia over 10 years ago in reply to Moises Garcia

TI__Mastermind 23815 points

Hi Sean,

Regarding HD3SS215
1) Common choke depends on the noise of the environment, customer has to determine if is needed.
2) This is an HDMI passive switch, no AC caps are needed.
3) AUX mux is active, you can use it.

Regarding DP141
For control pins please use external 1k pullup/pulldown, some pins have weak pullup/pulldown better place external resistor. REXT has 1.2k, this is the right value.
What is the configuration you want it control pins? GPIO or I2C mode? why SDA and PWDN has test points?

Regards

Interface

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HD3SS215 and SN65DP141 schematic review