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LA4663 Datasheet(PDF) 7 Page - Sanyo Semicon Device

Part # LA4663
Description  Two-Channel 16-W BTL General-Purpose Audio Power Amplifier
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4663 Datasheet(HTML) 7 Page - Sanyo Semicon Device

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Other Notes
• Standby function
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 k
500 µA
No. 5905-7/10
LA4663
5
VSTB
(RSTB)
ISTB
About 1.4 V
15 k
A10632
C1
GND
STBY
MUTE
C4
R1
IN1
PRE-GND
IN2
C2
C3
14
1
C5
C7
R3
C6
R2
C9
R5
C8
R4
—OUT1
OUT1
—OUT2
OUT2
GND
VCC
Sample Printed Circuit Board Pattern (Copper surface)


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