This is a 2x8W audio amplifier board with a new AudioB plus Bluetooth module that supports Apt-X. It has perfect class-D architecture(Based on TPA3110D2) and every channel has 8W power ouput. This board can be powered by any DC8V-16V power supply, it can be used to drive any 4Ω or 8Ω passive speakers. It's perfect for your Hi-Fi application, the audio source can be cable input(3.5mm stereo) or Bluetooth. Let your smartphone paired with this board, play a music. So easy! 
Note：When you insert the cable plug, Bluetooth connection will auto disconnect. Specification: TA = 20℃, fIN = 1 kHz sine wave, RL = 4Ω. (Unless otherwise stated) Parameter | Condition | Min | Typ | Max | Supply Voltage (V) | - | 8 | 12 | 16 | Quiescent Current (mA) | SD = 2V, No load, Vcc = 12V | - | 20 | 35 | Input Sensitivity (V) | Gain = 26dB | - | 0.283 | - | Input Impedance (Kohm) | - | - | 30 | - | Gain (dB) | - | | 26 | | Output Power (W rms) | THD+N = 10%, Vcc = 12V | - | 8 | - | Efficiency (%) | Vcc = 12V, RL = 8Ω, PO = 5W | - | 86 | - | Minimum Load (ohm) | - | 3.2 | 4 | - | Frequency Response (Hz) | ±3dB | 20 | - | 22k | Operating Temperature (℃) | - | -40 | 20 | 65 |
Features: - Size: 4.8cm x 8cm
- Apt-X supported
- External mute control port
- Working voltage: DC8V-16V
- Over/under voltage protection
- Over current protection
- Over temperature protection
- Bluetooth 4.0
Applications: - Personal computer
- Desktop amplifier
- Microphone preamplifier
- Home DIY
- Vending machine,Lifts
- Interactive kiosks
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