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Adafruit Mono 2.5w Class D Audio Amplifier Pam8302 2130
Price:
£13.08
Free postage
Returns:
60 days return. Seller pays for return postage.
Condition:
The A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio-pin to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard.