3 Channel Audio Mixer IC LM348

Monday, May 21st, 2018 - Audio Circuit

The circuit of 3 channel audio mixer IC LM348 has 3 microphone input channels and made with LM348 IC. The circuit of 3 channel audio mixer IC LM348 is made for mixing audio signals from the microphone on a standard microphone amplifiers. The circuit of 3 channel audio mixer IC LM348 is not equipped with a regulator of tone due to the use of mixer intended for sound practices and 3 caps a speaker or user all at once. Image circuit and a list of components to create a chain of 3 channel audio mixer IC LM348 can be seen in the following figure.

The circuit of 3 Channel Audio Mixer IC LM348

3 Channel Audio Mixer IC LM348

The circuit of 3 channel audio mixer IC LM348 is made with four pieces of the operational amplifier (Op-Amp) in one chip IC LM348. The circuit of 3 channel audio mixer IC LM348 can be supplied with a symmetrical voltage source ± 12 volts DC. The circuit of 3 channel audio mixer IC LM348 on the image above circuit using a mic amplifier or mic pre amp IC LM348 voltage is set as a non-inverting amplifier. 3 channel mic amplifier circuit above can be used to amplify and mix the signals from microphone-type moving coil (dynamic microphone). Level control system or microphone volume on the mixer circuit 3 channel with IC LM348 above lies in their brackish tau mic pre amp mic amplifier, it is intended that the signal from the microphone 1 and the others are not mutually affected.

Aplication Of 3 Channel Audio Mixer IC LM348

The circuit of 3 channel audio mixer IC LM348 above requires a power amplifier so that the signal from the microphone can be used to drive the speakers (loud speaker). Power amplifier to the circuit 3 channel audio mixer IC LM348 should be using a power amplifier with symmetrical voltage ± 12 volt DC power supply for the system to circuit 3 channel audio mixer IC LM348 and power amplifiers can be one.

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