LA4742 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

生产厂家

LA4742

45 W Four-Channel (Bridge Circuit) Power Amplifier

SANYO -> Panasonic 

LA4742

Continued from preceding page.

Pin No. Function DC voltage [V]

Notes

Internal equivalent circuit

Input amplifier

ST-BY power

supply line

11

IN1

12

IN2

14

IN4

15

IN3

• Input amplifiers that require no

3.1

capacitor in the input noise filter.

13

PRE GND

30 kΩ

VREF

100 Ω

11

12

14

15

Bias circuit

power supply line

5 pF

1 kΩ

Inverter

amplifier

A13769

20 kΩ

16 ON TIME MUTE 2.6

• Amplifier turn-on time control circuit

• Impulse noise prevention circuit

• With a 22 µF capacitor, the turn-on

time will be 0.6 s.

VREF

200 Ω

16

2 kΩ

40 kΩ

10 kΩ

2 kΩ

13 kΩ

Input amplifier

ST-BY power

supply line

3 kΩ

A13770

1 kΩ

22

MUTE

4.1

• The muting function is activated when

the applied voltage is under 1 V.

VREF

Amplifier

bias circuit

25

CLIPDET

7.5 kΩ 10 kΩ

100 kΩ

100 Ω

22

VREF

A13771

No. 7043-5/9

Share Link: