Schematic Circuit use the IC AN7112 with minimum voltage 4 Volt and maximum voltage 14 Volt. Recomeneded voltage is 9 Volt. Maximum output power 0,5 watt. This is low output power or mini amplifier sound. Impedance Speaker 8 Ohm and frequncy 40 Hz - 18 kHz. IC AN7112 has similarities with IC KA2212 , LA4140 , TA7313AP . PAckage of this IC is SIL - 9 and Manufactered by MATSUSHITA.
See Schematic power amplifier (figure 1.1) and Package IC (figure 1.0) below :
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Figure 1.1 Click Image to View Enlarge
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