TDA7052 1 Watt Amplifier Kit

It is designed to be used as a building block in other projects where a battery powered audio amplifier is required to drive a small speaker. It will operate best from 6  12 V DC and requires no heatsink for normal use. Two may be used for stereo applications. The kit has a low component count No external heatsink is necessary. It is short circuit protected. Ideal for 3V - 12V battery operation into an 8 ohm speaker. Use with QK98 if more gain is required.

Circuit Description :
There are only 5 external components.
C1 is the input coupling capacitor, which blocks any DC that might be present on the input.
C2 and C3 provide power supply decoupling, and R2 provides adjustable input level.
This can be used as a volume control.
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.