Stereo 3.7W Class D Audio Amplifier - MAX98306 - Adafruit 987

Index: ADA-06767 EAN: 5904422375218

Module with audio amplifier, class D. Characterized by small power losses. It allows you to connect speakers 3 Ohms with the capacity of 3.7 V. Working voltage from 2.5 V to 5.5 V.

Stereo 3.7W Class D Audio Amplifier - MAX98306 - Adafruit 987
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Manufacturer: Adafruit


Module with audio amplifier class D MAX98306. Small power losses, that is small heat generation and longer battery life. It allows you to connect3 Ohm speaker with the power to 3.7 V.


The system inputs are differential, a safety input signal from the primary circuit, for example the available in our store Arduino Mp3 Shield. In the absence of a device with differential outputs, connect pin Audio to the ground.


The output of module is "Bridge Tied" type. This means that the output contacts are connected directly to contacts of the speaker, without connecting to the ground. The output is a PWM signal with a frequency of 250 kHz, which is avaraged through the coil dynamics - high frequency is not audible. For module, it is not possible to connect another amplifier. It should lead directly to the speakers.


Wzmacniacz audio klasy D


The kit includes connectors forself-soldering.


  • Supply voltage: 2.7 V to 5.5 V
  • Low energy consumption; 2 is at rest and 10 µa in sleep mode
  • Power: 3.7 W (3 Ohms)
  • Class D amplifier
  • Protection against short circuit and too high current
  • Recruited 5 gain: 6 dB / 9 dB / 12 dB / 15 dB / 18 dB
  • 83 dB PSRR 217 kHz
  • Overheat protection and short circuit protection
  • Complete goldpin connector and screw connection for self-soldering
  • Dimensions: 28 x 24 x 3 mm
  • Weight: 2,33 g
Package width 7.5 cm
Package height 0.3 cm
Package depth 14 cm
Package weight 0.005 kg

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Stereo 3.7W Class D Audio Amplifier - MAX98306 - Adafruit 987


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Bogusław B. 01.12.2021 Confirmed purchase Translated review

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