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參數(shù)資料
| 型號： | AN12942B |
| 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)： | 14/31頁 |
| 文件大?。?/td> | 577K |
| 代理商： | AN12942B |
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14
SDC00047AEB
AN12942B
Technical Data (continued)
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 changes whether or not it makes
this IC an operation condition or
whether or not it makes it a standby.
Low: Standby
High: The operation condition
In that the power changes a connected
condition to the standby, the circuit
electric current can be almost made 0.
The entry impedance
:
About 80 k
Standby on/off
changing SW
Open DC
voltage
DC: 0.00 V
32
It is the power supply (V
CC
) pin to
supply the regulator circuit to create
the inner
power supply V
REG
with the voltage.
It is separating from V
CC
_SP of pin 1,
pin 56 fully inside. It is desirable to
separate as far as it finishes coming
out about the P board pattern, too.
V
CC
DC: 5.0 V
16,
41
The entry impedance
:
About 22.5 k
The entry impedance
:
About 100 k
Impedance
It enters a main audio signal.
Pin 27: R-channel entry
Pin 28: L-channel entry
Audio signal
input
DC: 2.25 V
AC:
10 dBV
27,
28
It is the voltage pin for DC bias
pri_charge.
Pri_charge level
pin
DC: 3 V
17
Description
Inner circuit
Waveform
and voltage
Pin
No.
32
80k
240k
17
160k
V
CC
(5.0 V)
240k
V
REG
(4.5 V)
13.2k
Pin 28,
pin 27
31.8k
V
REF
(2.25 V)
22.5k
22.5k
V
REF
(2.25 V)
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