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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


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polyester film capacitor


Download LA4440 Datasheet (on semiconductor)

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