Sure TPA3116 wiring - mute stby vcc and gnd - diyAudio
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Old 6th October 2015, 03:52 PM   #1
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Default Sure TPA3116 wiring - mute stby vcc and gnd

Hi all,

I've purchased the board pictured below. It works well but I'm a little mystified by the function and wiring of the inputs highlighted. I am ready to put this in a case and would like to know what these do and how to go about wring them.

Thanks for any advice!

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Old 7th October 2015, 01:32 PM   #2
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Bump! Anyone wanna help out a newb?
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Old 7th October 2015, 02:11 PM   #3
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Leave them unconnected if everything works. There are pull-up/pull-down resistors somewhere on the board which keep these inputs at default level.
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Old 8th October 2015, 11:33 AM   #4
coit is offline coit  Australia
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Location: Hunter Valley,NSW,Australia
The VCC and GND are simply power supply passthroughs to connect another amp. I ignore the others.
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Old 9th October 2015, 03:24 AM   #5
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I was hoping to take advantage of the mute. Thanks all.


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Old 9th October 2015, 07:02 AM   #6
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By default mute is connected to GND via a pull-down resistor, so you have to connect it to VCC in order to mute the outputs. You can add a simple toggle switch for it.
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