Product Description
PAM8406 ultra-miniature stereo digital amplifier board features excellent noise suppression and independent left/right channel volume adjustment. Adopts Class D design without LC filter requirement, can be directly powered by computer USB port.
With double-sided PCB wiring and machine welding process, it effectively solves ground potential balance and inter-channel crosstalk issues, delivering stable and clear sound quality. Ultra-compact size and lightweight design make it ideal for various small space audio applications.
Technical Specifications
- Model: PAM8406
- Amplifier Type: Class D (No LC filter required)
- Rated Working Voltage: DC 2.5V-5V
- Maximum Limit Voltage: 5.5V
- Output Power: 5W×2 Stereo (5V input)
- Supported Speaker Impedance: 4Ω / 8Ω
- Product Size: 23×24mm
- Net Weight: 0.45g
- Welding Process: Full machine welding
Core Features
- ✅ Excellent noise suppression: No audible noise even when ear is close to speaker without audio input
- ✅ Independent left and right channel volume adjustment for precise sound control
- ✅ Unique non-LC filter design, directly powered by computer USB port
- ✅ Double-sided PCB wiring, eliminates ground potential imbalance and channel crosstalk
- ✅ High amplification efficiency and low power consumption
- ✅ Ultra-miniature size, easily fits into small digital devices
- ✅ All components machine-welded, ensuring consistent and reliable quality
⚠️ IMPORTANT USAGE WARNING
Do not exceed 5.5V input voltage, otherwise the amplifier chip will be permanently damaged.
Applicable Scenarios
- DIY portable Bluetooth speakers
- USB powered audio devices
- Small desktop speaker upgrades
- Mini audio systems
- Toy audio modification
- Headphone amplifier projects
Package List
1 × PAM8406 Stereo Digital Amplifier Board with Volume Potentiometer
Notes
1. Slight 1-2mm size deviation exists due to manual measurement
2. Item color may have minor differences influenced by different monitor displays and lighting conditions
3. Please use a stable DC 2.5V-5V power supply for best performance
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