20pcs XY-SP5W 5128 Mini Class D Digital Amplifier Board 5W Mono Audio Power Amplifier

Features ● Operating current 1A● Power Output 3 5W● Drive Speaker 4 8Ω● SNR 85dB VDD 5V Vorms 1V● Class D Audio Amplifier● Low Distortion Low Noise Floor Notes 1 2 5V to 5 5V operation from a single supply and damaged upper 5 5V 2 A 5V 1A DC adapter is recommended to supply the module 3 The circuit will be damaged if the power polarity is oppsite 4 4 Ω 3W Speaker is recommended5 With mute fuction Mute by high level on MUTE PIN and play by low level Low level is default by a pull down resister 6 The module is effective for 0 5V to1V audio signal a pre Amplifier will be needed if the signal is small Package Included 20 x 5128 Mini Class D Digital Amplifier Module