Connections Diagram For Amplifier With 2 Resistors. Advantages of using this ic are low harmonic distortion compared to other ic amplifiers of similar category and a power supply rejection rate of 85db. Low power audio amplifier circuit based on lm386.

So that it allows only the high frequency audio signal. Connect the circuit diagram as in the one marked with amplifier with gain 20 and you get 20 fold the signal. For splitting the signal you can use resistors for basic splitting.

So that it allows only the high frequency audio signal.

Connect the circuit diagram as in the one marked with amplifier with gain 20 and you get 20 fold the signal. The current flowing through this resistor produces the voltage output of the amplifier. Above is the circuit diagram for this tda2030 based amplifier circuit. Two 9v battery powered amps based on the lm386.