PAM8610 2 Channel * 10 Watt Class D Stereo Audio Power Amplifier Module with Volume Control Pot

PAM8610 10W Audio Amplifier This document provides instructions for the installation and operation of the PAM8610 2 Channel * 10 Watt Class D Stereo Audio Power Amplifier Module. This module is designed for DIY audio projects and offers a compact, efficient solution for amplifying audio signals.

It’s particularly well-suited for any DIY design requiring a miniature audio amplifier, especially portable and mobile applications operating on battery power.

Features

Compact Design: Small form factor for easy integration into projects.
Class D Amplifier: High efficiency (90%) for extended battery life.
10W + 10W Stereo Output: Delivers ample power for most small to medium-sized speakers.
Wide Operating Voltage: Operates from 7.5V to 15V DC, ideal for 9V or 12V power supplies.
Easy Speaker Connection: Screw terminals for quick and secure speaker wiring.
Built-in Noise Cancellation: Minimizes unwanted noise for clear audio reproduction.
Pop-Free Operation: Eliminates annoying popping sounds during power on/off.
Remote Control Options: Connectors for external power and mute switches.
Volume Control Potentiometer: Onboard potentiometer for convenient volume adjustment.
Protection Features: Short-circuit, under-voltage lockout, and over-temperature protection.

Specifications

Audio Input Connector: 3.5mm stereo headphone jack
Output Power: 10W + 10W (at 8Ω load, 12V power supply)
Frequency Response: 20Hz to 50KHz
Amplifier Class: D
Efficiency: 90%
Operating Voltage: 7.5 – 15V DC
Power Connector: 5.5mm / 2.1mm barrel connector (center positive)
Recommended Supply Voltage: 12V DC, 2A
Quiescent Current: 20mA
Speaker Load: 4-8 Ohms (8 Ohms recommended)
Dimensions: 40 x 40 x 22 mm (L x W x H, excluding volume control knob); 55 x 40 x 22 mm (including volume control knob)
Weight: 24g

Module Overview

Refer to the image below for component identification:

Key Components

Audio Input: 3.5mm stereo jack for connecting audio sources.
DC Input: 5.5mm/2.1mm barrel connector for DC power supply.
Speakers: Screw terminals for connecting left (L) and right (R) speakers. Be sure to observe polarity (+ and -).
Power LED: Indicates when the module is powered on.
Mute Switch: Connector for optional external mute switch (SPST).
Power Switch: Connector for optional external power switch (SPST). A jumper is supplied to enable the amplifier if an external switch is not used.
Volume Potentiometer: Adjusts the audio output volume.

Installation and Operation

Important Precautions

Speaker Load First: Always connect the speakers before applying power to the module.
Polarity Matters: Ensure correct polarity when connecting speakers and the power supply.
Negative Connections: DO NOT connect the negative (-) terminals of the left and right speaker channels together. This can damage the amplifier.
Heat Sink: Ensure the included heat sink is attached to the amplifier IC before applying power. Remove the backing from the double-stick tape and press firmly onto the IC.
Power Supply: Use a power supply that meets the recommended voltage (7.5V to 15V, 12V recommended) and current (2A) requirements. Using an inadequate power supply may result in poor performance or damage to the module.

Step-by-Step Instructions

Attach the Heat Sink: If not already attached, remove the backing from the double-stick tape on the included heatsink and firmly press it onto the amplifier IC.
Connect Speakers: Using the screw terminals, connect your speakers to the “L” (Left) and “R” (Right) speaker outputs. Ensure correct polarity (+ and -) for each speaker. Recommended speaker impedance is 8 Ohms.
Connect Audio Source: Plug your audio source (e.g., smartphone, computer) into the 3.5mm stereo audio input jack.
Power Switch Configuration:
- Using the Jumper (No External Switch): Ensure the jumper is installed on the “Power Switch” connector. This enables the amplifier to power on when DC power is applied.
- Using an External Switch: Remove the jumper from the “Power Switch” connector. Connect an external SPST switch to the connector. Closing the switch will power on the amplifier, and opening the switch will power it off.
Connect Power Supply: Plug a 7.5V to 15V DC at 2A power supply into the 5.5mm/2.1mm DC power jack. Ensure the connection is center positive.
Adjust Volume: Use the volume potentiometer to adjust the audio output to your desired level.
Mute Switch (Optional): If you have connected an external SPST switch to the “Mute Switch” connector, closing the switch will mute the audio output, and opening the switch will unmute it.

Troubleshooting

No Sound:
- Check the power supply connection and voltage.
- Verify the speaker connections and polarity.
- Ensure the “Power Switch” jumper is installed (if not using an external switch) or the external switch is closed.
- Check the audio source and volume level.
- Ensure the “Mute Switch” is open (if using an external switch).
Distorted Sound:
- Reduce the volume level.
- Ensure the speaker impedance is within the recommended range (4-8 Ohms).
- Check the power supply voltage and current rating.
Overheating:
- Ensure the heat sink is properly attached to the amplifier IC.
- Reduce the volume level.
- Verify the speaker impedance is not too low (below 4 Ohms).
Popping Sound:
- While this module is designed to minimize popping, it can still occur at very high volumes. Reduce the volume level.

Safety Information

Do not expose the module to excessive moisture or extreme temperatures.
Do not disassemble or modify the module.
Use only the recommended power supply.
Disconnect the power supply before making any wiring changes.
This module is intended for hobbyist and educational purposes. The manufacturer is not responsible for any damage caused by improper use.

Where to Buy the PAM8610 Stereo Audio Amplifier Module

PAM8610 Stereo Audio Amplifier Module on the Envistia Mall website:
https://envistiamall.com/products/pam8610-mini-10w-10w-stereo-audio-power-amplifier-board-module-w-volume-control

P/N EM-AUDIO-0004

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