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

Features: ? a?? Operating current: >1A a?? Power Output: 3~5W a?? Drive Speaker: 4~8a?| a?? SNR: 85dB@ VDD=5V,Vorms=1V a?? Class D Audio Amplifier a?? 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 a?| 3W Speaker is recommended 5.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: ? 5 x 5128 Mini Class D Digital Amplifier Module