For ADV7611 and ADV7513, how INT pin behave when I set the chip into Power Down mode? Thanks.
INT should remain stable during the power down I2C command.
The ADV7611 and ADV7612 are very similar parts. The only real difference is the 7612 has 2 input HDMI ports and a different package.
If you assume the worst case leakage then 4.7k x 60uA = 0.282V, 3.3V - 0.282V = 3.018V which is greater then the Vih of 2.0V. 4.7K should be fine.
The configuration is defined in UG-180 page 14. For example in Power-Down Mode 1 INT and INT2 are enabled so the system can respond to Hot Plug Detect signals on the HDMI connector.
In the programmers guide check out Table 82 and paragraph 4.7.2, shows what POWER DOWN effects,
and paragraphs 4.10.2, 4.10.3
Basically Power Down turns off the whole chip except for I2C, HPD interrupt, Monitor Sense interrupt and CEC.
Thank you for your response. Lets try this way. Does the pin INT change the state dynamically at the moment when ADV7611 and ADV7513 enter Power down mode?
In the data sheet of the ADV7611, the input current of the PIN RESETn/ is ±60uA MAX. in the SCH of the 7612-7511 eval board( I am using), the pull-up resistor is 4.7K. Is this pull-up resistor value enough? I assume the design for ADV7611 is same as ADV7612, please confirm me.
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