TMDS442 I2C pull ups

Patrick Szabo

Other Parts Discussed in Thread: TMDS442

Hi,

I am using the TMDS442 as a 3:2 switch and I have completed my circuit but I am not so sure about the usage of the I²C pull up resistors.

Can anybody have a look on my schematic and give me feedback if the values are correct and the pull ups can be used this way?

Thanks!

0247.HDMI_Switch.PDF

over 9 years ago

0 Diego Cortes over 9 years ago

TI__Mastermind 36085 points

Hello Patrick,

I am reviewing your schematic and I will reply by tomorrow.

Regards,

Diego.

0 Diego Cortes over 9 years ago

TI__Mastermind 36085 points

Hello Patrick,

the Schematic looks good, however I recommend to use an independent power supply for the I²C terminals, so you can avoid possible voltage fluctuations during the HDMI connections, also I noticed that the local I2C pull-ups are missing on the schematic.

Regards,

Diego.

0 Patrick Szabo over 9 years ago in reply to Diego Cortes

Prodigy 160 points

Hello Diego,

thanks for reviewing my schematic and for the feedback. The power supply was something I was not sure about. But it is clear now.

The pull-ups for the local I2C are on a separate sheet.

Thanks!

Regards,

Patrick

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TMDS442 I2C pull ups