PAM8610 Digital Stereo Class-D Audio Amplifier Board

PAM8610 Digital Stereo Class-D Audio Amplifier Board is an exceptionally efficient, high-fidelity audio amplification module engineered to drive robust stereo sound systems with minimal power consumption. This compact class-D amplifier intelligently processes audio signals to deliver outstanding clarity and volume without requiring massive, heat-generating components. Consequently, hobbyists overwhelmingly prefer this board for constructing custom bookshelf speakers, portable boomboxes, and arcade cabinet sound systems. The device flawlessly outputs up to 15W per channel, therefore providing enough raw acoustic power to easily fill a medium-sized room. Furthermore, its filter-less architecture allows you to connect speakers directly to the output pins, significantly simplifying your overall wiring layout. Additionally, the onboard noise suppression circuitry actively combats annoying pop-noises during power cycles, however, it maintains a remarkably low total harmonic distortion across the entire audio spectrum.

Key Features:

• High Efficiency Class-D: Operates with an impressive 90% efficiency, therefore maximizing battery lifespan and virtually eliminating the need for bulky external heat sinks.
• High Power Output: Drives up to 15W of continuous power per channel into a 4Ω or 8Ω load, ensuring deep bass and crisp treble.
• Pop Noise Suppression: Integrated anti-pop circuitry effectively silences speaker thumps during startup and shutdown sequences.
• Filter-less Architecture: Allows you to connect your loudspeakers directly to the module without requiring expensive external low-pass filters.
• Built-In Protection: Features comprehensive thermal shutdown and short-circuit protection to consequently safeguard the main IC from catastrophic damage.

Technical Specifications:

• Operating Voltage (V_DD): 7.0 V to 15.0 V DC (12V Recommended)
• Maximum Output Power: 15 W + 15 W (at 4 Ω load, 15 V supply)
• Supported Speaker Impedance: 4 Ω to 8 Ω
• Amplification Class: Class-D digital amplification
• Signal-to-Noise Ratio (SNR): ≥ 90 dB
• Total Harmonic Distortion (THD+N): ≤ 0.1% (at 5 W / 1 kHz / 8 Ω)
• Input Impedance: 15 kΩ

Mechanical Specifications:

• Board Material: Multi-layer FR4 Fiberglass PCB
• Mounting Support: Includes four pre-drilled corner mounting holes for secure installation inside speaker enclosures.
• Connection Type: Solder pads or pre-installed pin headers for reliable wire termination.
• Cooling Requirement: Generally operates without an external heatsink due to superior thermal efficiency.
• Weight: ≈ 4.0 grams

Dimensions:

• Board Length: ≈ 30.0 mm
• Board Width: ≈ 25.0 mm
• Board Thickness: ≈ 2.5 mm

Pinout and Wiring:

• 12V (Power Range 7-15V): Connect this pad to a robust, noise-free DC power supply.
• GND (Power Ground): Connect this pad to the common system ground of your power source.
• L-IN (Audio Input): Solder the left channel audio signal wire from your DAC or master audio source here.
• Audio GND: Connect the audio ground wire to prevent ground loops and additionally reduce static.
• R-IN (Audio Input): Solder the right channel audio signal wire here.
• L+ / L- (Speaker Out): Connect these terminals directly to the positive and negative leads of the Left speaker.
• R+ / R- (Speaker Out): Connect these terminals directly to the positive and negative leads of the Right speaker.

Datasheet Reference:

• Download PAM8610 Class-D Amplifier Datasheet

Commonly Used in:

• Desktop Speakers: Upgrading weak computer multimedia speakers with a cleaner, more powerful internal amplifier.
• DIY Boomboxes: Acting as the primary power stage for portable, battery-operated outdoor speaker builds specifically.
• Arcade Machines: Providing the loud, punchy audio required for retro gaming cabinets and virtual pinball machines.

Applications:

• Public Address Systems: Driving small ceiling or wall-mounted speakers in corridors and waiting rooms.
• Flat Panel TVs: Replacing blown or degraded internal television amplifiers with a superior standalone module.
• Soundbars: Forming the dual-channel foundation for custom, low-profile television soundbars consequently.

Equivalent Models:

• TPA3110: A highly comparable 15W+15W Class-D amplifier from Texas Instruments that offers identical power output capabilities.
• PAM8403: A significantly smaller 3W+3W 5V module however strictly suited for headphones or micro-speakers.
• TDA7297: A traditional Class-AB amplifier offering 15W per channel, but requiring a massive aluminum heatsink to handle thermal losses.

Package Includes:

• 1 x PAM8610 Digital Stereo Class-D Audio Amplifier Board