![]() ![]() ![]() TDA2003 is a general-purpose amplifier IC that has a maximum power output of 10W and maximum current output of 3.5A. This simple amplifier circuit uses TDA2003 IC and a few passive components. Few key characteristics of an audio amplifier that define its quality are, output power, gain, signal-to-noise ratio, distortion, impedance, and frequency response. An audio amplifier as the name describes is a device that amplifies the audio signal received from any input source such as a radio receiver or any electronic instrument to produce a strengthened signal at the output to drive a loudspeaker or headphone. Here we will discuss the working and designing of the audio amplifier with an output power of 7 watts which means the maximum load the circuit can drive is 7 watts. They can be classified according to their functioning as DC (direct current) amplifiers, audio frequency amplifiers, radio frequency amplifiers, and UHF, VHF, or SHF amplifiers. ![]() Amplifiers are generally used in communication systems that comprise analog signals. The signal may be voltage, power, or current. The amplifier is an electronic device that magnifies the strength of the input signal by transmitting the energy to an incoming input by means of any power source at a controlled level.
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