Product description:
This is Digital Power Amplifier Board it uses the official standard circuit design, the chip PAM8406 is imported from USA and is original Longding Micro-D power amplifier chip, it can produce distortion free high efficiency power throughput of 5w with an 5v power supply without a need for heat sink.
Performance:
- Efficiency: >90%
- Total Harmonic Distortion plus Noise: <10%
- Low quiescent current
- Noise suppression
- Protection: reverse power supply input protection, short-circuit, overheat, pass EMI
Additional features:
- External power amplifier type selection function (MODE: high level Class D, low level Class AB, factory default high level)
- External Shutdown (SD: Chip Shutdown at Low Level, Factory Default High Level)
- Can be muted externally (MUTE: low-level mute, factory default high level)
Specification:
- Working Mode: Class D (PWM modulation type)
- Chip Type: PAM8406 2 x 5W Stereo HIFI
- Supply voltage: DC 5V (Do not overvoltage, overvoltage will burn IC)
- Input method: single-ended
- Output power: 5W 2Ω 5V /3W 4Ω 5V /1.8W 8Ω 5V
- Impedance: 2-8 Ohm
- SNR: 90% Recommended
- Speakers: 10-100W
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