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)
