M2150AD application circuit

The application circuit is shown in Figure 5-18. This circuit has fewer external components . RPi adjusts the output level to
match the post-stage circuit. This circuit can adapt to strong signal input and can be directly connected to the output of VCD and other audio sources. Pin 12 is the positive power
supply terminal, C14 is the reference voltage decoupling capacitor, the capacity should be large enough, the external components
of pins 2 to 6 and pins 15 to 19 are phase shift and mid-low frequency delay circuit external components
    . This circuit can be used for all speakers In the system, to enhance the clarity of music language, when
used in conjunction with other sound effects systems, it should be configured after all sound effects and tone circuits and before the power amplifier circuit. When using, try to
adjust the tone circuit and equalizer to the OdB and flat position, or a smaller amplitude position.