NS4110B DC 6-14V Differential Amplifier Board 2x18W Digital Class D/Class AB 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 work module 2 High quality sound quality 3 Support dual output 4 Support high temperature protection Parameters 1 Product Name NS4110B Differential Amplifier Board2 Working Voltage DC 6 0V 14 0V3 Output Power 7W 10W 18W7W Class D 7 4V 4ohm THD 10 10W Class D 9V 4ohm THD 10 18W Class D 12V 4ohm THD 10 4 Amplifier level Class D Class AB5 Default Mode Class D6 Support Speaker Impedance 4ohm7 Working Temperature range 20℃ 85℃8 Working Humidity range 0 95 RH9 Size 21 21 3mmSet Working Mode The default mode is Class D User can use CTRL pin to set work mode Remove resistor R6 and R7 to change Class D to Class AB CTRL pin is used connect to MUTE pin from Bluetooth module 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 Correspondence between work mode and voltage from CTRL pin N OVoltage from CTRL PinWork Mode10 0 0 5VLow power mode20 9V 1 6VClass AB22 0V 5 0VClass DUsing Steps 1 Make sure work mode 2 Connect the suitable speakers 3 Connect right input voltage at input terminal 4 Inp