HT8698 DC 2.5V-5.5V Differential Amplifier Board 5Wx2 Digital Class D Stereo Audio Power Amplifier

Description The differential amplifying circuit utilizes the symmetry of the circuit parameters and the negative feedback to effectively stabilize the static operating point and amplifies the differential mode signal to suppress the common mode signal It is widely used in the input stage of the direct coupling circuit and the measuring circuit Features 1 Support dual channel output mode2 High quality sound quality3 Built in amplifier Parameters 1 Product Name HT8692 Differential Amplifier Board2 Working Voltage DC 2 5V 5 5V3 Working Current 2A4 Output Power 5W5 Amplifier level Class D Class AB6 Default Mode Class D7 Support Speaker Impedance 4ohm8 Working Temperature range 20℃ 85℃9 Working Humidity range 0 95 RH10 Size 30 24 15mm Set Working Mode 1 The default mode is Class D 2 User can use CTRL pin to set work mode 3 Remove resistor R5 to change Class D to Class AB 4 CTRL pin is used connect to MUTE pin from Bluetooth module 5 Note The chip will get heat which will cause the over temperature protection function to be activated when input voltage is higher than 12V and working in Class AB mode Using Steps 1 Make sure work mode 2 Connect the suitable speakers 3 Connect right input voltage at input terminal 4 Input audio signal 5 Test and use Note 1 Default Class D 2 The chip will get heat which will cause the over temperature protection function to be activated when input voltage is higher than 12V and working in Class AB mode 3 Please use suitable speaker 4 Please