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SCL/SDA Voltage Tolerance level for ADV7611

Question asked by RajaAshutosh on Mar 22, 2018
Latest reply on Mar 23, 2018 by PoornimaSubramani

Hi,

 

We see that ADV7611 datasheet mentions Absolute Maximum Limits of "SCL/SDA Data Pins to DVDDIO" between "DVDDIO - 0.3V to DVDDIO + 3.6V".

 

We are measuring the SCL/SDA signals w.r.t. Ground on a CRO. Hence, in order to compare the measured and required values, we would need the Absolute Maximum Limits of SCL/SDA Data Pins w.r.t. Ground. Can you please share the same? We are particularly concerned about the Minimum Voltage at SCL/SDA pins.

 

Also, please let us know if device failure can happen due to crossing of Minimum Voltage limit at SCL/SDA pins?

 

FYI, In our design, the pull-up to SCL/SDA signals are pulled up to a different 3.3V supply compared to the 3.3V supply connected to DVDDIO pins.

 

Regards

Raja

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