The following schematic diagram is very simple mini audio amplifier circuit. The amplifier which use TDA 7052 as the main component, will gain the power output up to 1 Watt . Power supply voltage range for this circuit is about 6-12V for maximum performance and no heatsink required.
Components list:
C1 = 2.2uF/16V electrolytic capacitor
C2 = 100nF ceramic/mono
C3 = 100uF electrolytic
R1 = 1K ohm resistor
R2 = 10K ohm potentiometer
IC = TDA7052
8 pin IC socket
Specifications :
- Gain ~ 30 dB maximum.
- D.C. input : 3 – 15 V at <>
- Idle current <> 1 Watt @ 8 ohms maximum.
- ~ 10 – 50 kHz, – 3dB
- > 0.25 Watt RMS continuous
- Freq. Resp. > 20 Hz – 20 kHz
- THD <> 70 dBA
- Input Z ~ 10 k ohm.
The kit of this circuit available at electronickits.com, visit the website to buy the kit.
The tutorial for this mini audio amplifier available in PDF format, download the file here.
Download TDA7052 datasheet HERE
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