1W Audio Amplifier with TDA7052

This is the circuit diagram of 1W audio amplifier which use TDA7052 as the main component and other 5 pieces of components to support the main component. The ideal supply voltage of this circuit is about 6-12V and no heatsink required. The schematic is for mono audio channel, just build two similar circuit for stereo channel.

Components :

• R1 : 1K ohm resistor
• R2 : 10K ohm log potentiometer
• C1 : 2.2uF/16V electrolytic capacitor
• C2 : 100nF ceramic/mono
• C3 : 100uF electrolytic
• TDA7052 Integrated Circuit
• 8 pin IC socket

1W Audio Amplifier Specifications :

• D.C. input : 3 ? 15 V at < 300 mA.
• Idle current < 8 mA, 4 mA typical. Power output > 1 Watt @ 8 ohms maximum.
• > 0.25 Watt RMS continuous
• Freq. Resp. > 20 Hz ? 20 kHz
• ~ 10 ? 50 kHz, ? 3dB
• THD < 1 % @ 100 mW, 0.2% Typ. S/N ratio > 70 dBA
• Gain ~ 30 dB maximum.
• Input Z ~ 10 k ohm.

If you prefer to buy the kit of this circuit, just go the electronickits.com.
The tutorial also available in PDF format, download the file here:

Download the datasheet of TDA7052 here: