LM3900 Audio Mixer Schematic Diagram

Posted on Feb 5, 2014

This audio mixer circuit doesn`t use a low impedance input to mix no ideal sources, but use many amplifiers to provide ideal sources before mixed through simple resistors. Ideal source means a sources with low impedances, make the interaction between signals in the output doesn`t affect the input. Please note that this mixer circuit has high impe

LM3900 Audio Mixer Schematic Diagram
Click here to download the full size of the above Circuit.

dance output, so you`ll need an next processing equipment with appropriate input specs. This audio mixer circuit is designed around an LM3900 quad op amp and combines 2 line and 2 mike inputs and sums them at the output terminal. To vary the gain (around +23 dB), we can change the R7 through R10. You are reading the Circuits of LM3900 Audio Mixer And this circuit permalink url it is

Leave Comment

characters left:

New Circuits



Popular Circuits

2x300W or 600W Power audio Amplifier
Picoammeter circuit
Visual modulation indicator
5W 80M Cw Transceiver
rs232 to rs485 circuit
TDA 7053 Stereo Audio Amplifier Circuit
Simple Light Sensor Alarm circuit with NE555
emergency lamp circuit problem
Battery Tester Circuit
Connect to the PIC Microcontroller
DA-101 FM radio circuit chip