TDA 2050 LM 1875 Power Amplifier Cirrcuit Diagram
This is the IC based TDA 2050 - LM 1875 Audio Power Amplifier Cirrcuit Diagram. This is not an usual circuit, but an attempt to make a PCB that is suitable for TDA2050 and LM1875 and has all the necessary circuitry on board - power supply, speaker protection, delayed turn-on and fast turn-off. This is achieved using the convenient uPC1237 IC. TDA2050 and LM1875 are pin to pin compatible, the differences in their schematics are the values of a couple resistors and one capacitor. All this allows to make an universal circuit board, suitable for any of these two ICs.It is 2x30W, but it depend of the power supply voltage and the impedance of the speakers connected to the output. TDA 2050 - LM 1875 Power Amplifier Cirrcuit Diagram PCB top layer PCB bottom layer Parts List B1 KBU8M FBU4 C1 100nF C050-024X044 C2 100nF C050-024X044 C3 1000uF E5-10,5 C4 1000uF E5-10,5 C6 2.2uF C050-075X075 C7 220nF C050-030X075 C8 22uF E3,5-8 C9 100nF C050-024X044 C10 100nF C050-024X044 C11 1000uF E5-10,5 ...