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[ADV7511W] Relationship between the power-supply and the internal-circuit.

Question asked by Tamu on Jul 12, 2018
Latest reply on Jul 16, 2018 by Tamu

Hello,

 

I have a question about relationship between the power-supply and the internal-circuit of ADV7511W.

 

There are some power supply pins of ADV7511W as follows:
 1.8 V Supply Voltage (DVDD, AVDD, PVDD, BGVDD)
 3.3 V Supply Voltage (DVDD_3V)

I think TMDS and PLL is related to 1.8V supply(AVDD and PVDD).
Please let me know the other block.

 

I think as follows:
 - internal digital circuit except TMDS block and PLL is related to DVDD (1.8V).
 - Digital I/O block(I/O buffer) except TMDS output is related to DVDD_3V (3.3V).
Is this right?

 

Especially about I2C and DDC I2C, I think the internal I2C/DDC I2C circuit is related to DVDD (1.8V).
And I2C/DDC I2C I/O block (the buffer) is related to DVDD_3V (3.3V).
Is this right?

If I2C/DDC I2C I/O block (the buffer) is related to 1.8V (DVDD etc.), please let me know.

 

Thank you!
Best regards.
Tamu

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