LA4663 データシートの表示（PDF） - SANYO -> Panasonic

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LA4663

Two-Channel 16-W BTL General-Purpose Audio Power Amplifier

SANYO -> Panasonic 

Other Notes

• Standby function

VSTB

ISTB

About 1.4 V

5

(RSTB)

15 kΩ

A10632

LA4663

Pin 5 in this IC is the standby pin, and applying a voltage of 2.0 V or

higher will activate this function. The pin 5 influx current for an

applied voltage of 5 V will be about 240 µA.

ISTB = 5 V – 1.4 V = 240 µA

15 k

Insert an external current limiting resistor (RSTB) if it is necessary to

limit this influx current when using a microcontroller.

If this input voltage is applied by a circuit or device other than a

microcontroller, calculate the value for RSTB from the following

formula such that the pin 5 influx current due to the applied VSTB is

under 500 µA.

RSTB = Applied voltage (VSTB) – 1.4 V – 15 kΩ

500 µA

Sample Printed Circuit Board Pattern (Copper surface)

VCC

GND

14

C5

—OUT1

OUT1

—OUT2

OUT2

R3 C7

R2 C6

R5 C9

R4 C8

1

C3

C1

IN1

PRE-GND

IN2

C2

C4

GND

R1

STBY

MUTE

No. 5905-7/10

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