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PAM8403 Digital Audio Amplifier Module

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SKU: 1798398

15,00 EGP

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The PAM8403 Digital Audio Amplifier Module is a tiny, efficient class-D stereo amplifier board built around the PAM8403 IC, delivering 2 x 3W of audio output from a low-voltage DC supply. It’s a popular choice for powering small speakers in portable audio projects and Arduino-based sound systems.

Key features:

  • Amplifier IC: Built around the PAM8403 dual-channel class-D audio amplifier chip.
  • Output Power: Delivers 2 x 3W of stereo output into 4Ω speakers.
  • Supply Voltage: Operates from 2.5V to 5V DC, making it easy to power from USB or batteries.
  • High Efficiency: Class-D switching design keeps heat low without needing a heatsink.
  • Compact Size: Its tiny footprint fits easily into small enclosures and portable builds.
  • Low Noise Output: Filterless design with low total harmonic distortion for clean sound.

Simply feed it a stereo line-level input and connect two small speakers to get instant amplified audio.

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Specification

Technical Specification

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Display

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

RAM

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Storage

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Video Card

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Connectivity

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Features

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

Battery

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

General

Supply Voltage

2.5V to 5V
Output Power

2 x 3W (into 4Ω)
Channels

Stereo (2-channel)
Efficiency

Class-D, up to 90%
THD

<0.1%

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Color

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Dimensions

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Microcontroller

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Input Voltage (limit)

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Analog Input Pins

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DC Current per I/O Pin

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DC Current for 3.3V Pin

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SRAM

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Clock Speed

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Microcontroller

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Operating Voltage

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Digital I/O Pins

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Analog Input Pins

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Connectivity

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Supply Voltage

3.3V to 5V
Output Type

Digital (HIGH/LOW signal)
Detection Range

Typically 2-30 cm, depending on the module and adjustments
Connection Pins

VCC (Power), GND (Ground), OUT (Output)
Operating Temperature

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