Microphone Amplifier Block Diagram. Microphone a transducer which converts sound to voltage. How to build a microphone amplifier circuit circuit and wiring diagram download for automotive car motorcycle truck audio radio electronic devices home and house appliances published on 29 nop 2018.

Simple block diagram microphone signal levels vary widely due to. We need an additional component a ceramic capacitor to block the dc and acquiring the ac audio signal. For the gain of the microphone.

This circuit can merely output the current at ma range.

Before we show the complete schematic diagram of the microphone amplifier circuit we will first show the pinout of the lm386. We used 1uf as our microphone dc blocking capacitor. Microphone converts sound into an electrical signal. The active components of the circuit amplifiers a1 and a2 proven in figure 1 are within ic1.