REES52 783 100W Dual Channel Digital Stereo Power Amp Module DC 24V Class D Audio Amplifier Board Micro Controller Board Electronic Hobby Kit

Features : 100w+100w dual-btl class-d audio amplifier with single power supply wide range single power supply: 15-32vdc(recommended 24v) output power: 100w+100w (vcc = 36 v, rl = 6I, thd: 10 percent) output power: 80w+80w (vcc = 34 v, rl = 8I, thd: 10 percent) speaker impedance: 4-8 ohm (8 ohm best, 4 ohm or 6 ohm also works) four fixed gain settings available: 25.6 db, 31.6 db, 35.1 db and 37.6 db adopts differential input to minimize common-mode noise protection: Short-circuit protection, over temperature protection with standby and mute features high efficiency: 90 percent note : Packaging with exposed pad up (epu), more convenient to mount a separate heatsink mode : Three kinds of modes avaliable: Standby/ mute/ normal working mode standby mode-all circuits closed, at a low power state, mute mode-all input signals connects ground, the duty cycle of forward/backward pwm output signal is 50 percent, normal working mode-the amplifier module works normally.