Using TDA1029 integrated circuit can be designed a very simple and useful audio signal source switch electronic project using few electronic parts.
The TDA1029 is a dual operational amplifier (connected as an impedance converter) each amplifier having 4 mutually switchable inputs which are protected by clamping diodes. Signal-sources switch can be made in various mods :
This electronic circuit project is a class AB audio power amplifier designed using the TDA7350 IC manufactured in a Multiwatt package .The TDA7350 audio power amplifier require few external components and can be used in stereo mode or mono (bridge ) mode .
This 2 x 30 watt amplifier electronic circuit project is designed using the LM4765 stereo audio amplifier IC capable of delivering typically 30W per channel of continuous average output power into an 8Ω load with less than 0.1% THD+N.
Each amplifier has an independent smooth transition fadein/out mute and a power conserving standby mode which can be controlled by external logic.