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參數(shù)資料
| 型號(hào)： | AN12943A |
| 廠商： | PANASONIC CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Audio signal processing IC for notebook PC |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO56 |
| 封裝： | 0.300 INCH, PLASTIC, HSOP-56 |
| 文件頁數(shù)： | 13/32頁 |
| 文件大?。?/td> | 501K |
| 代理商： | AN12943A |
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13
SDC00057AEB
AN12943A
Technical Data (continued)
y
Circuit diagrams of the input/output part and pin function descriptions (continued)
Note) The characteristics listed below are reference values based on the IC design and are not guaranteed.
It is the condenser connection pin of the
offset cancellation circuit to remove the
DC offset. As the principle, it composes
high pass filter by entry impedance "R"
and connection condenser "C".
The entry
impedance
:
About
100 k
Offset
cancellation C
pin
DC: 2.25 V
13,
14
It is the output pin of the signal detection
system preamplifier.
The output
impedance
:
About
10
The signal
detection system
preamplifier
output pin
DC: 2.25 V
AC:
10 dBV
12
It is the signal input pin for signal
automatic detection. It is possible to
adjust in the direction lowers a gain by
adding external resistance.
The entry
impedance
:
About
20 k
Signal input for
signal automatic
detection
DC: 2.25 V
AC:
10 dBV
11
Pin 15, pin 42 connect with the lead
frame of the IC. Also, it is connected
with the substrate potential in the IC.
Please don't connect with the GND line
on the board pattern.
NC
15,
42
Impedance
It is the GND pins of the signal system.
It isn't connected with the substrate
potential in the IC.
GND
DC: 0.0 V
9,
26,
48
Description
Inner circuit
Waveform
and voltage
Pin
No.
11
20k
V
(2.25 V)
V
SS
(
2.6 V)
12
V
REG
(4.5 V)
V
SS
(
2.6 V)
100k
V
REG
(4.5 V)
Pin 13
14
V
SS
(
2.6 V)
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