Stereo Audio Amplifier Using CD4440 / LA4440

LA4440 ic Stereo Audio Amplifier Circuit Diagram

LA4440 or CD4440 is a dual channel audio Monolithic amplifier integrated circuit. 

This IC amplifier has 2 modes – Stereo Amplifier And Bridge Amplifier Mode

According to Datasheet, it has Following Features

Built-in 2 channels (dual) enabling use in stereo and bridge amplifier applications.

Dual: 6Wx2 

Bridge: 19W 

• Minimum number of external parts required.

• Small pop noise at the time of power supply ON/OFF and

• good starting balance.

• Good ripple rejection: 46dB 

• Good channel separation.

• Small residual noise.

• Low distortion over a wide range from low frequencies to

• high frequencies.

• Easy to design radiator fin.

• Built-in audio muting function.

• Built-in protectors.

• Thermal protector

• Overvoltage, surge voltage protector

• Pin-to-pin short protector

Use Heatsink With IC

This is the circuit diagram of Stereo (Dual) Mode Amplifier Of 4440 ic

LA4440 CD4440 Stereo Audio Amplifier Circuit Diagram


Polyester film capacitor is More Suitable at the Capacitor C2, C4, C8 and C12

polyester film capacitor


Download LA4440 Datasheet (on semiconductor)

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4 thoughts on “Stereo Audio Amplifier Using CD4440 / LA4440”

  1. In this curcuit (lA/CD4440 IC) diagram,is there any wrong connection. I have made like this as shown in the diagram but I have no a response and the ic is going too hot,please help?

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