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Can someone suggest an ADAU1701 schematic block that will output a high to one of the GPIO's when a music signal is present, and which will revert to low after a few minutes? Forgive me if this is a duplicate, I asked it once but it doesn't seem to show u

Question asked by woodyh on Feb 17, 2017
Latest reply on Feb 20, 2017 by DaveThib

I need to Unmute a power amp attached to the ADAU1701 when signal is present, and mute it a few minutes after the signal is gone. Adjustable trigger level and time delay would be nice, but not essential. I've used many of  the signal blocks for various projects, but am a novice when it comes to GPIO use. Thanks.