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Stereo 20W Class D Audio Amplifier - MAX9744 diagonal view

Stereo 20W Class D Audio Amplifier - MAX9744

19.86

Product Code : 1816

In Stock Now : 43
Incl. BTW: € 22,24 Excl. BTW: € 18,54
  • Stereo 20W Class D Audio Amplifier - MAX9744 with coin
  • Stereo 20W Class D Audio Amplifier - MAX9744 connected to speakers
  • Stereo 20W Class D Audio Amplifier - MAX9744 diagonal view
  • Stereo 20W Class D Audio Amplifier - MAX9744 with components

This 20W stereo amplifier is a slim board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each. Power it with 5-12VDC using the onboard DC power jack and plug stereo line level into the 3.5mm stereo headphone jack and jam out with ease. Since it's class D, its completely cool-running, no heat sinks are required and it's extremely efficient - up to 93% efficiency makes it great for portable or battery powered rigs.

The MAX9744 amplifier is very easy to use and has both analog and digital volume control capability. Use a single 1KΩ pot (included) to adjust volume analog-style or hook it up to a microcontroller and send I2C commands to set 64-steps of volume amplification.

The MAX9744 has been mounted into a breakout, with polarity-protection, jacks and terminal blocks, i2c level shifting, and a spot to solder in a volume potentiometer. Each order comes with one MAX9744 breakout board with all surface-mount parts fully assembled and tested, 3 x 2pin and 1 x 3pin terminal blocks, a 470uF power filter capacitor and 1KΩ trim potentiometer.

Note: To use this board, a little soldering is required to attach the terminal blocks and other components, but its fairly easy and expect it should take less than 15 minutes.

MAX9744 features:

  • Power from 4.5V-14V DC voltage
  • Up to 93% efficient (88-93% typical)
  • 20mA quiescent current (or put into shutdown for 1uA quiescent)
  • Up to 29.5dB max gain
  • Use DC or AC coupled line-level input, up to 3Vpp
  • Filterless Spread-Spectrum Modulation Lowers
  • Radiated RF Emissions from Speaker Cables
  • 20W Stereo Output (4Ω, VDD = 12V, THD+N = 10%)
  • Low 0.04% THD+N
  • Integrated Click-and-Pop Suppression
  • Short-Circuit and Thermal-Overload Protection

  • Dimensions (without 0.1" header or terminal blocks): 54mm x 41mm 2mm / 2.1" x 1.6" x .08"
  • Weight: 11g

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