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Documents What resistor value should we use as a pull-up for the reset pin?
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What resistor value should we use as a pull-up for the reset pin?

Question: What resistor value should we use as a pull-up for the reset pin?

Answer: The reset pin of the ADV7181C has an internal 90kΩ pull-down resistor. A high resistor value for a pull-up (such as 47kΩ for example) will cause the voltage at the reset pin to decrease, with the risk of getting too close or even below the Input High Voltage (VIH) level.

We would therefore recommend a 10kΩ resistor value, which is the value used on the ADV7181C evaluation board. Lower resistor values (such as 4.7kΩ, 5.6kΩ, etc...) should also be fine.

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