Sunday, October 18, 2009
Here is a 22watt Audio amplifier circuit uses IC TDA2040. TDA2040 is a monolithic power amplifier IC intended for use as a high quality, class AB audio power amplifier. The TDA2040 is designed to operate from a split power supply and no electrical isolation is needed between the mounting tab and its heatsink. It provides a high output current and has very low harmonic and crossover distortion.
Note:
Use ± 20V DC for powering the circuit.The IC must be heatsinked.
Uses 4 Ohm Speaker
For optimum performance input and output must be separately grounded.
PCB layout amplifier TDA2040Parameters IC TDA1514A IC TDA 2040
Supply Voltage........................................ ± 20 V.
Input Voltage........................................... ± 20 V.
Differential Input Voltage......................... ± 15 V.
Output Peak Current (internally limited).... 4 A.
Power Dissipation at Tcase = 75 °C........... 25 W.
Storage and Junction Temperature......... – 40 to + 150 °C.
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