TDA7496 Stereo Amplifier With DC Volume Control

Audio amplifier circuit shown here is a 5W stereo class AB power amplifier based on the TDA7496 IC designed for high quality sound, TV applications atau keperluan audio lainnya.

The power supply needed must deliver 22 volts for 8 ohms load impedance and 12 volts for 4 ohms load impedance . The maximum output power which can be obtained with this audio IC is around 5.5 watts on 8 ohms load with 10 % THD and 4 watts with 1 % THD.

TDA7496 Stereo Amplifier Circuit

Main features of the TDA7496 include linear volume control ,Stand-by and Mute functions , 2 x 5Watt output power, short circuit protection , thermal overload protection.

TDA7496 Pin Out

Maximum ratings of TDA7496 IC

• Supply Voltage: 35 V
• Maximum Input Voltage: 8 Vpp
• Total Power Dissipation (Tamb = 80°C): 15 W
• Operating Temperature: 0 to 70 °C
• Storage and Junction Temperature: -40 to 150 °C
• Volume CTRL DC voltage: 7 V

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Simple Audio Amplifier Based LA4460 IC

A simple audio amplifier circuit can be designed using the LA4460 IC . This circuit is very simple and require few external electronic components . The LA4460 IC is actually used for car radio or car audio power amplifier and may deliver output power up to 12 W. But in this circuit is only used 5W.

This amplifier circuit can be used for car radio applications , TV , or some other audio circuits that don’t require huge power .

LA4460 Simple Audio Amplifier Circuit

Notes:

• Use 12VDC to supply the circuit.
• Mount the LA4460 IC  with an appropriate heat sink

Some of most important features of the LA4460 IC are : reverse connection protection , muting function,thermal runaway protection circuit ,over voltage & surge voltage protection circuit, load short-circuit current limiting protection circuit, output pins DC short-circuit protection.

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TDA1521 Stereo Amplifier Circuit

Using only active component Philips TDA1521 monolithic integrated circuit, can be designed a small and compact stereo amplifier is powerful but can easily be used to replace your broken amplifier or new construction, or to make an active speaker, in all cases combined with a preamplifier. With remarkable features make it the true Hi-Fi amplifier

The amplifier circuit is designed for both symmetrical and asymmetrical power supply systems. An output power of 2 ´ 12 watts (THD = 0,5%) can be delivered into an 8 W load with a symmetrical power supply of ± 16 V. The gain is fixed internally at 30 dB. Internal gain fixing gives low gain spread and very good balance between the amplifiers (0,2 dB).

TDA1521 Stereo Audio Amplifier Circuit

TDA1521 Pinout

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