PAM8403 5V 3W 2-Channel Stereo Module

Description

The PAM8403 is a compact and efficient 5V 3W 2-channel stereo amplifier module commonly used in various audio applications. Here’s an overview of its features and typical usage:

PAM8403 5V 3W 2-Channel Stereo Module

Key Features:

1. Amplification Capability: Provides 3 watts of output power per channel when powered by a 5V DC power supply. This makes it suitable for driving small to medium-sized speakers or headphones.
2. Dual Channel Stereo Output: Offers two independent channels (left and right), enabling stereo audio output.
3. Low Power Consumption: Designed for efficiency, consuming minimal power during operation.
4. Compact Size: Small form factor makes it easy to integrate into various projects and applications where space is limited.
5. Simple Integration: Requires minimal external components for operation, simplifying the design process.
6. Wide Voltage Range: Supports input voltages ranging from 2.5V to 5V, allowing flexibility in power supply options.
7. Built-in Protection: Includes built-in overcurrent and thermal protection circuits to safeguard the amplifier and connected devices.

Typical Applications:

• Portable Audio Systems: Used in DIY projects for creating portable speakers or headphone amplifiers.
• PC or Laptop Audio Enhancement: Provides improved audio output quality when connected to computer speakers or headphones.
• Educational Projects: Ideal for educational purposes to demonstrate basic audio amplification principles.
• Arduino or Raspberry Pi Projects: Integrates well with microcontroller-based projects requiring audio amplification.

Specifications:

• Power Supply: 2.5V to 5V DC
• Output Power: 3W per channel (at 5V power supply)
• Efficiency: Up to 90%
• Signal-to-Noise Ratio (SNR): Typically greater than 80dB
• Frequency Response: 20Hz to 20kHz
• Dimensions: Compact board size, typically around 30mm x 20mm

Pin Configuration:

• VCC: Power supply input (5V recommended)
• GND: Ground connection
• L-out: Left channel audio output
• R-out: Right channel audio output

Usage Tips:

• Ensure proper heat dissipation if operating near maximum power output to prevent overheating.
• Connect audio input signals directly to the module’s input pins (typically labeled IN+ and IN-).
• Use appropriate speakers or headphones with compatible impedance ratings for optimal performance.