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  • Audio IC Development Tools Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 (1 Piece)
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Audio IC Development Tools Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 (1 Piece)

4.6 out of 5 stars 194 ratings
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About this item

  • Super small mono amplifier is surprisingly powerful
  • Includes a header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker.
  • There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain.
  • Output Power: 2.5W at 4ohm, 10% THD, 1.5W at 8ohm, 10% THD, with 5.5V Supply
  • Note: Speaker not included.
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Product information

Technical Details

Summary
Brand ‎Adafruit
Item model number ‎PAM8302
Product Dimensions ‎8.99 x 5.99 x 0.99 cm; 20 g
Item dimensions L x W x H ‎9 x 6 x 1 Centimetres
Voltage ‎5.5 Volts

Additional Information

ASIN B00PY2YSI4
Customer Reviews
4.6 out of 5 stars 194 ratings

4.6 out of 5 stars
鶹 Rank
Date First Available Jan. 15 2015
Manufacturer Adafruit

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Audio IC Development Tools Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302 (1 Piece)

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Product description

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8ë speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic "LM386" amps! 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- pinåÊ to ground. The output is "Bridge Tied" - that means the output pins connect directly to the speaker pins, no connection 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. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly. Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Speaker is not included, use any 4 ohm or greater impedance speaker.

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