AN7124 Просмотр технического описания (PDF) - Panasonic Corporation

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AN7124

Dual 3.1 W Audio Power Amplifier

Panasonic Corporation 

ICs for Audio Common Use

AN7124

s Application Note (continued)

4.Oscillation

To prevent oscillation, it is advisable to use C (Zobel network capacitor). Using polyester film capacitor has small

characteristic fluctuation with temperature and the frequency.The resistor R connected in series with C is effective

for phase correction at high frequency, as a result, it improves the oscillation allowance.

Pin7,12

1 000 µF

C 47 nF

R 2.2 Ω

5.Bootstrap

The capacitor C connected between the output and bootstrap pin helps to increase the output dynamic range and

hence increases the output power of the IC.

pp

VCC

Pin8,11

47 µF C

Pin7,12

5

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