This is the simple Using TDA1562Q 54 W Amplifier Circuit Diagram. The integrated output amplifier described in this article consists of little more than one integrated circuit. It is intended especially for use in motor vehicles and other battery operated applications. Although it appears simple and hardly worth looking at, the amplifier can produce an appreciable audio power output.[link] Using TDA1562Q 54 W Amplifier Circuit Diagram D ata PropertiesHigh power output through Class-H operation Low power dissipation during reproduction of music signals Proof against short-circuits Protection against excessive temperatures Standby switch No power-on or power-off clicks Visible error indication Measurement results (at Ub=14.4 V) Supply voltage 8–18 V Sensitivity 760 mV r.m.s. Input impedance 70 kΩ Power output 54 W r.m.s. into 4 Ω (f=1 kHz; THD+N=1%) Harmonic distortion (THD+N) at 1 W into 4 Ω: 0.046% (1 kHz) 0.29% (20 kHz) at 35 W into 4 Ω: 0.12% (1 kHz) 0.7% (20 kHz) Signal-to-noise rat...