MB3829 Datasheet, PDF (4/24 Pages) Fujitsu Component Limited. – System Power Supply IC for Mobile Telephone

MB3829
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Pin No.
Sounder section
26
27
28
29
Speaker amplifier
30
section
31
32
33
34
35
36
37
38
39
40
Voltage monitoring
section
41
42
43
44
Power supply
45
control section
46
47
48
Pin Symbol
I/O
Description
IN2
IN1
CLK
VCC4
OUTA
OUTB
GND3
GND4
FB
BP
IN
SB
CHOICE
INH
CK
RESET
CTW
CTP
CT1
ON1
ON2
OFF
VCC2
I
Control input 2 pin (H level: Vo2 operation)
I
Control input 1 pin (H level: Vo1 operation)
I
Clock input pin
-
Power supply pin for speaker amplifier section
O
Output A pin
O
Output B pin
-
Ground pin
-
Ground pin
I
Inverted input pin
-
Bypass pin
I
Non - inverted input pin
I
Control input pin (H level: speaker amplifier operation)
-
Earphone selection control pin
I
Inhibit pin
I
Clock input pin
O
Reset output pin
-
Pin for watchdog timer monitoring time setup
-
Pin for power - on reset hold time setup
-
Pin for connecting ON time setup capacitor
I
ON1 pin
I
ON2 pin
I
OFF pin
-
Power supply pin for ON/OFF switch section
4