LA42201 查看數據表（PDF） - SANYO -> Panasonic

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LA42201

Audio Output for TV application BTL 20W Monaural Power Amplifier

SANYO -> Panasonic 

Block Diagram

LA42201

Ripple

Filter

5

VCC/ground shorting protection circuit

Load shorting protection circuit

Thermal protection circuit

over voltage protection circuit

4 GND

MUTE 6

IN 7

Ri=

50kΩ

Input amplifier

Output amplifier

3 +OUT

2 VCC

1 -OUT

Test Circuit

LA42201

-OUT1

1

VCC

2

+OUT1

3

GND

4

+ CVCC

1000μF

/25V

RL = 4Ω

Ripple

Filter

Mute

IN

5

6

7

+ CRF

100μF

/16V

RMute

10kΩ

CMute

1μF

+ /10V

CIN

0.47μF

VMute

Description of external parts

CIN

: Input coupling capacitor, for which 0.47μF is recommended. Since the input pin potential is about 1/2 VCC,

the ceramic capacitor with small leak current is recommended.

CRF : Ripple filter capacitor, for which 100μF is recommended. Note that the capacitance below 100μF will cause

decrease in the ripple removal ratio.

CMute : Capacitor for mute.

CVCC : Power capacitor.

No.A0894-3/6

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