8 Watt mono audio power amplifier board. Makes an ideal building block for projects where a low voltage dc powered general Class AB audio amplifier is required.
Circuit uses the proven TDA2003 audio amplifier IC that features zero turn-on transients, wide 8 to 18Vdc supply range, current limiting and thermal protection.
Power output is dependent on the supply voltage & load resistance. Over 10 watts is typical for a 2 Ohm speaker with 16V supply; 9V supply with an 8 Ohm speaker will give about 1W.
High quality volume control potentiometer and 8°C/W heatsink included.
SpecificationsInput Power | 8 - 18Vdc, 10 - 20 VA min. |
Current Consumption | 1 Amp minimum (see text) |
Power output | > 10 W RMS, 2 ohm load, 16V DC supply > 6W RMS, 4 ohm load, 16V DC supply > 4W RMS, 4 ohm load, 12V DC supply |
THD | < 0.2% (1W, 4 ohm load) |
Gain | 20 - 40 dB maximum |
S/N ratio | > 80 dBA. (G = 20 dB) > 60 dBA (G = 40 dB) |
Frequency response | < 20 Hz to > 40 kHz (-3dB, 4 ohm load) |
Input level | < 100 mV for full output (G = 40 dB) < 1V for full output (G = 20 dB) |
Output impedance | 2 - 4 Ohms |
Board Dimensions | ~ 50 x 38 mm |
Board Connections | Screw terminal blocks |
Control Knob | KB0410 |
Product Formats | SELF-ASSEMBLY Electronic Kit (KT) or PRE-ASSEMBLED Electronic Module (AS) Product Formats Info |
Documentation | User Manual TDA2003 IC Data Sheet Amplifier Power Supply General Advice |