an12940aa Panasonic Corporation of North America, an12940aa Datasheet - Page 3

• Manufacturer Part Number: an12940aa
• Description: Audio Signal Processing Ic For Notebook Pc
• Manufacturer: Panasonic Corporation of North America

■ Pin Description
Note) SP : Speaker
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
1
2
3
4
5
6
7
8
9
HP : Headphone
REG : Regulator
V
Input for alarm
REG ripple filter pin
Input for PCcard
Standby on/off control
R-channel input
Main signal mute on/off control
V
Audio mix amplifier R-channel output
Volume control signal R-channel input
R-channel output for HP amplifier
Negative feedback pin for alarm
mix amplifier R-channel
Alarm mix amplifier R-channel output
AGC R-channel output
GND
SP amplifier R-channel input
Signal automatic detection on/off control
Signal automatic detection sense control
V
GND
Demodulation pin for signal
automatic detection
Signal automatic detection output
GND_SP R-channel
SP amplifier R-channel
positive phase output (+)
SP amplifier R-channel
positive phase output (+)
SP amplifier R-channel
negative phase output (−)
SP amplifier R-channel
negative phase output (−)
V
V
CC
REF
REF
CC
CC
_SP R-channel
_SP L-channel
_SP
R-channel for volume
Description
SDC00044AEB
Pin No.
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
SP amplifier L-channel
negative phase output (−)
SP amplifier L-channel
negative phase output (−)
SP amplifier L-channel
positive phase output (+)
SP amplifier L-channel
positive phase output (+)
GND_SP L-channel
SP power save control
AGC-on level control
GND
Offset cancel pin for signal
automatic detection
AGC on/off control
AGC demodulation pin
SP amplifier L-channel input
GND
AGC R-channel output
Alarm mix amplifier L-channel output
Negative feedback pin for alarm
mix amplifier L-channel
L-channel output for HP amplifier
Volume control signal L-channel input
Audio mix amplifier L-channel output
V
Signal automatic detection
mix amplifier output
Negative feedback pin for signal
automatic detection mix amplifier
L-channel input
V
Input for modem
GND
Input for beep
REF
REF
L-channel for volume
Description
AN12940AA
3