3139 - 1W Stereo Amplifier Module with DC Volume Control

1W stereo audio amplifier module using a TDA7053A integrated stereo audio power amplifier IC that has DC volume control. Wide 4.5 - 18V dc supply voltage.

Gain is controlled by the DC levels applied to the IC so that the audio signal itself does not pass through the onboard potentiometer.

Technical Specifications
Power Supply	4.5 - 18V dc (see Power Supplies page)
Current consumption	1.5 A max
Idle current	< 25 mA
Output power	> 4W (inst.) @ 8 ohm, 12V dc > 1 Watt @ 4 - 16 ohms, 12Vdc > 0.5 Watt @ 8 ohm, 6V dc > 0.25 Watt RMS continuous
Freq. response	< 20 Hz to > 100 kHz, – 3dB
THD	< 1 % @ 0.5W, 8 ohm
S/N ratio	> 60 dBA, G = 40 dB
Gain	- 33dB to + 40dB maximum
Input Z	~ 4.7 k ohm
Board Dimensions	43x40mm
Connections	Solder pads
Control Knob	KB0561
Product Format	SELF-ASSEMBLY Electronic Kit (KT ) or PRE-ASSEMBLED Electronic Module (AS) more
Documentation	User Manual TDA7053A Data Sheet