LA4629 Просмотр технического описания (PDF) - SANYO -> Panasonic

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производитель

LA4629

Two-Channel Audio Frequency Power Amplifier

SANYO -> Panasonic 

LA4629

3. FILTER (decoupling) pin (pin 7)

The pin voltage is about 1/2 VCC.

The recommended value for the filter capacitor is 100 µF.

The pulse noise that occurs when the standby pin is set low (power off) will be degraded if a value under 100 µF is

used.

AC voltage (100 mV)

AC voltage (200 mV)

Output DC voltage

Output DC voltage

Filter capacitor = 100 µF

ILA00078

Filter capacitor = 47 µF

ILA00079

VCC

4. P.P (pulse noise) pin (pin 8)

Pin 8 pin voltage ≈ VCC - VCE (about 0.3 V) - 5.6 V + 5.6 V

2 kΩ

• The recommended value for the P.P capacitor is 4.7 µF.

8

The pulse noise that occurs when the standby pin is set low (power off) will

be degraded if a value under 2.2 µF is used.

Furthermore, if a value over 10 µF is used, the signal may not be cut off and

sound may remain audible when the standby pin is set low (power off).

Zener voltage

= 5.6 V

To the input amplifier

block/bias system

ILA00080

5. MUTE (Muting)

The output signal can be controlled by shifting the pin 7 (FILTER) level towards ground with a 300 to 500 Ω resistor.

However, note that the degree of suppression is reduced if a value of 750 Ω or more is used.

Output AC voltage

Output DC voltage

Mute ON

Mute OFF

ILA00081

No.6502-4/6

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