LA4598 查看數據表（PDF） - SANYO -> Panasonic

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LA4598

Two-channel Power Amplifier for Radio Cassette Players (No Heat Sink Needed during 9 V Operation)

SANYO -> Panasonic 

Sample Application Circuit

To large signal GND

LA4598

Mylar capacitor

Unit (resistance:Ω, capacitance:F)

Mylar capacitor

C + R can be added to the negative side of the output capacitor.

However, this is true only for a Sanyo-recommended board; for a set board, artwork must also be

considered.

Description of External Components

C1, C8: Bootstrap capacitors

These capacitors affect low-region output; if the capacitor value is reduced, the low-region output decreases. Therefore,

47 µF or more is desirable.

C2, C6: Output capacitors

If the capacitor value is reduced, low-region roll-off frequency fL and low-region Po worsen.

C3, C7: Oscillation blocking capacitors

Mylar capacitor, which is excellent in temperature characteristics and frequency characteristics is used.

C4: Power supply capacitor

The capacitor values depends on the power supply line loads (motor, and the like.) and transformer ripple component.

1000 µF to 2200 µF is recommended.

C5: Standby capacitor

Pop noise reduction capacitor

C9, C11: Feedback capacitors

In addition to affecting low-region roll-off frequency fL, if the capacitor value is increased, the start-up time is extended.

C10: Decoupling capacitor

This capacitor absorbs power supply ripples; 220 µF is recommended.

R1, R2: Oscillation blocking resistors

The resistor value may be varied 3.3 Ω to 1.0 Ω.

No.4087-3/9

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