Simple amp with volume control

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Does anyone know how to make a simple 2W ish amplifier circuit that can have a volume control that is electronic say controlled from a few I/O lines or serial lines. My application is an audio output from a TV tuner that I want to amplify and control via a CPU/Microcontroller.
:?:
 

I think this could be the one: TDA8551 - NF power amplifier with simple volume control, two buttons: up / down.

meax98
 

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