參數(shù)資料
型號(hào)： AN8725FH
廠商： PANASONIC CORP
元件分類： 其它接口
英文描述： Semiconductor laser power control IC
中文描述： SPECIALTY INTERFACE CIRCUIT, PQFP80
封裝： 12 X 12 MM, PLASTIC, QFP-80
文件頁(yè)數(shù)： 7/36頁(yè)
文件大小： 197K
代理商： AN8725FH
ICs for Optical Disk Drive
AN8725FH
7
I
Pin Descriptions (continued)
Pin No.
Symbol
Category
Description
64
RDCP2
MSC
A
Pin to connect a de-coupling capacitor to protect the output current of
DAC7, the read current setting circuit, from disturbance by a switching
noise such as peak current.
(Connects a capacitor between RDCP2 and RGND.)
65
LDRP
OUT
A
Source type read current (DAC1, DAC7, DAC8, DAC9) output pin.
Possible to set up the range of 0 mA to 150 mA in the precision of 8-bit
+
4-bit
+
5-bit
+
4-bit.
Output voltage range is 1.0 V to 3.5 V.
66
N.C.
N.C. pin.
67
N.C.
Open the pin or connect to GND.
68
RV
CC
PS
A
Power supply pin for read current setting DAC7, DAC8.
Consumes approximately a quarter of the necessary read current.
Must be used in the same potential as other power supply pins.
69
LDPK
OUT
A
Source-type peak current (DAC2) output pin.
Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit.
The output voltage range is 1.0 V to 3.2 V.
70
XLDPK
IN
A
Sink-type peak current output pin.
Approximately three fourths of LDRK output current are outputted from
this pin.
71
PKGND
PS
A
GND pin of DAC2 in the peak current setting circuit.
Must be used in the same potential as other GND pins.
72
PKV
CC
PS
A
DAC2 power supply pin in the peak current setting circuit.
Consumes approximately a quarter of the setting current.
Must be used in the same potential as other power supply pins.
73
PKDCP
MSC
A
Pin to connect a de-coupling capacitor to avoid the output current disturbance,
which is caused by a switching noise such as peak current, in peak current
setting circuit DAC2.
(Connects a capacitor between PKDCP and PKGND.)
74
LDBI
OUT
A
Source-type bias current (DAC3) output pin.
Possible to set the range of 0 mA to 150 mA in the accuracy of 8-bit.
Output voltage range is 1.0 V to 3.2 V.
75
XLDBI
IN
A
Sink-type peak current output pin.
Approximately three fourths of LDBI output current are outputted from
this pin.
76
BIGND
PS
A
GND pin of a bias current setting circuit DAC3.
Must be used in the same potential as other GND pins.
77
BIV
CC
PS
A
Power supply pin of a bias current setting circuit DAC3.
Consumes approximately one fourth of a setting current.
Must be used in the same potential as other power supply pins.
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