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5fed6b1749b07fdc653f7567 AMP AUDIO 3.7W CLASS D https://cdn1.storehippo.com/s/59c9e4669bd3e7c70c5f5e6c/5fed69d549b07fdc653f35bb/webp/987-00-1-.jpg

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance
speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its
incredibly efficient (over 90% efficient when driving an 8Ω speaker at over a Watt).

This amplifier is perfect for portable and battery-powered projects. It has built in thermal and over-current protection,
but you really have to drive it hard before it even gets warm! This board is a welcome upgrade to basic "LM386" amps!

Specifications:

  1. Output Power: 3.7W at 3Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply Passes EMI limit unfiltered with up to 12 inches (30 cm) of speaker cable.
  2. High 83dB PSRR at 217Hz.
  3. Spread-Spectrum Modulation and Active Emissions Limiting.
  4. Differential Inputs.
  5. Five pin-selectable gains: 6dB, 9dB, 12dB, 15dB and 18dB. Select with a jumper or by setting the G and G'
    breakout pins (see schematic for breakout board showing gain pin settings (https://adafru.it/aWT) for details)
    Excellent click-and-pop suppression.
  6. Thermal and short-circuit/over-current protection.
  7. Low current draw: 2mA quiescent and 10uA in shutdown mode

Datasheet: Manual

TT-1528-1380-ND
in stock INR 1050
ADAFRUIT
1 1
XYZ Blog title
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AMP AUDIO 3.7W CLASS D

Description of product

This incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance
speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, its
incredibly efficient (over 90% efficient when driving an 8Ω speaker at over a Watt).

This amplifier is perfect for portable and battery-powered projects. It has built in thermal and over-current protection,
but you really have to drive it hard before it even gets warm! This board is a welcome upgrade to basic "LM386" amps!

Specifications:

  1. Output Power: 3.7W at 3Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply Passes EMI limit unfiltered with up to 12 inches (30 cm) of speaker cable.
  2. High 83dB PSRR at 217Hz.
  3. Spread-Spectrum Modulation and Active Emissions Limiting.
  4. Differential Inputs.
  5. Five pin-selectable gains: 6dB, 9dB, 12dB, 15dB and 18dB. Select with a jumper or by setting the G and G'
    breakout pins (see schematic for breakout board showing gain pin settings (https://adafru.it/aWT) for details)
    Excellent click-and-pop suppression.
  6. Thermal and short-circuit/over-current protection.
  7. Low current draw: 2mA quiescent and 10uA in shutdown mode

Datasheet: Manual