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VMA2012 2*3W Class D Audio Amplifier Module

5 ( 1 reviews)
SKU: 44126 (Added on -)
Price:
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5.30
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VMA2012 2*3W Class D Audio Amplifier Module
- VMA2012 is a compact, low power, high efficiency 3Wx2 stereo class D audio amplifier
- It can drive two 8 ohm speakers up to 3W when supply voltage is 5.5V
- The THD+N is only 0.2% when output power is 1.5W
- Low power, small size and high efficiency makes VMA2012 a ideal choice for applications where space and power is limited
- Applications: Desktop audio, Portable audio, Radio, Embedded notebook audio, Home entertainment, Accessories for MP3 player
- Datasheet download link: http://v-module.com/file/20100505112201-VMA2012.pdf
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Dimensions: 0.71 in x 0.59 in x 0.16 in (1.8 cm x 1.5 cm x 0.4 cm)
Weight: 0.07 oz (2 g)

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Average Customer Review (1 customer reviews) 5

100% of customers would recommend this product to a friend (1 out of 1)

  • 5 star: 1 (0%)
  • 4 star: 0 (0%)
  • 3 star: 0 (0%)
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  • 1 star: 0 (0%)

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  • Easy to use andf greaty sound!

    posted by Derfpa on 07:44:14 G6T 13/06/2011 certificated customer

    Involvement Level: Expert (understands the inner workings)

    Pros: *Small
    *Cheap
    *Easy to use (basically no extra components needed)
    *Dedicated pin for "on"-mode
    *Seems to have saftey circuits against faulty wiring. Mine seemed burned a few times (while experimenting) but got reset after reboot.

    Cons: *Locked gain (adjustable with the bigger models.. can easily be adjusted with a potentiometer in the input though)
    *Two pads were hard to presolder. Didn't affect the result though when I soldered it to the board.
    *High switching speed! Measured it to approx 800kHz!
    *Output - on channel 1 and 2 cant be connected together! Channel one stops to work, but is fully functional again after reboot. I planned to use this chip as a headphone amplifier for old 8ohm-headphones, but that is not possible with this limitation.

    Other: If you're building a small battery powered speaker for you cellphone/mp3-player then this one is for you! You cant get much cheaper and power efficient!
    But remember, its not possible to use as a headphone amplifier since channel one dies when connecting- of both channels together.

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