Elevate your DIY audio projects with this compact and efficient stereo amplifier board. Powered by the reliable TDA2822M chip, it delivers rich sound output in a small form factor—perfect for portable speakers, electronics builds, and educational kits.
🔊 Key Features:
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Dual-Channel Stereo Output: Provides up to 1 W × 2 into 8 Ω speakers, with peak power up to 1.5 W per channel
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Wide Voltage Range: Operates from 1.8 V to 12 V, ideal for battery-powered or small-scale applications
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Onboard Volume Control: Adjustable knob provides easy level tuning without external components.
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Screw-Terminal Connectors: Quick and solder-free hookup for power, audio input, and speaker output.
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Compact PCB Layout: Measuring just ~52 × 31 × 23 mm, it saves space while delivering high performance.
⚙️ Specifications:
| Feature |
Specification |
| Amplifier IC |
TDA2822M (STMicroelectronics) |
| Power Output |
1 W × 2 into 8 Ω (rated); Up to 1.5 W × 2 peak |
| Speaker Impedance |
4 – 32 Ω |
| Supply Voltage |
1.8 – 12 V DC |
| Frequency Response |
20 Hz – 20 kHz |
| SNR (Signal-to-Noise) |
≥ 50 dB |
| THD |
~0.1% |
| PCB Size |
~52 × 31 × 23 mm |
✅ Ideal For:
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Portable and battery-powered speaker builds
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Sound augmentation in toys or educational electronics
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Adding audio to microcontroller projects (Arduino, ESP32, etc.)
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Replacement or upgrade for cassette tape players and multimedia devices
