6 watt stereo amplifier for a car radio

7-06 — elektor july/august 1981 6 Watt 2 stereo amplifier for a car radio The TDA 2004 from SG fiery contains two bal- anced class B power amplifiers. The IC was designed especially for use as an in-car stereo amplifier, and for this reason it is housed in a strong package and protected against all kinds of overload. For example, output short-circuits or disconnection of the loud- speaker, overheating of the chip, peaking of the power supply or even briefly reversing the polarity of the supply connections are unable to destroy the device. With the component values shown and with a supply voltage of 14.4 V (a fully charged car battery), the stereo amplifier is capable of delivering a power output of at least 6 W, typically 6.5 W with a load impedance (RL) of 4 a It can also handle a load impedance of 2 St, in which case the output power is a minimum of 9 W, but typically 10 W. Power outputs of this order are subject to about 10% distortion, however, if lower power outputs are acc...