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9251M PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 9251M
기능 LA9251M
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9251M 데이터시트, 핀배열, 회로
www.DataSheet4U.com
Ordering number : ENN6125
Monolithic Linear IC
LA9251M
CD Player Analog Signal Processor (ASP)
Overview
The LA9251M is a servo signal-processing IC for CD
players. In combination with a CD DSP such as the
LC78626KE, it can implement a CD player with a
minimal number of external components.
Functions
• I/V amplifier
• SLC
• FE
• Focus servo amplifier
• Spindle servo amplifier (with gain switching function)
• Focus detection (DRF and FZD)
• Defect detection
• RF amplifier with AGC
• APC
• TE (with variable gain and auto balance function)
• Tracking servo amplifier
• Sled servo amplifier (with turn-off function)
• Track detection (HFL, TES)
• Shock detection
• Built-in EF balance adjustment
• Built-in RF level AGC function
• RF level follower function for the tracking servo gain
(with turn-off function)
Package Dimensions
unit: mm
3159-QIP64E
1.0
48
49
[LA9251M]
17.2
14.0 1.6
0.8 0.35 1.0
33
32
0.15
64
1
17
16
0.1
2.7
Features
• Low-voltage operation: 2.4 V (minimum)
• Low current drain: 15 mA (at VCC = 3.0 V, typical)
15.6 0.8
SANYO: QIP64E
Specifications
Maximum Ratings at Ta = 25°C, with pin 46 tied to ground
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Pin 56
Ta 75°C
Conditions
Ratings
7
200
–15 to +75
–40 to +150
Unit
V
mW
°C
°C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
42800RM (OT) No. 6125-1/17




9251M pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
LA9251M
Continued from preceding page.
Pin No.
25
26
27
28
29
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
57
58
59
60
61
62
63
64
Pin
SP
SPD
SLEQ
SLD
SL
SL+
OSC
(NC)
SLOF
TGRF
SP8
EFBAL
FSTA
LASER
(NC)
TJP
TGL
TOFF
TES
HFL
CLV
GND
RF
RF
SLC
SLI
DEF
DRF
FSC
TBC
FSS
VCC
REFI
VR
LF2
PH1
BH1
LDD
LDS
(NC)
Function
In conjunction with the SPD pin, spindle phase compensation constant connection
Spindle control signal output
Sled phase compensation constant connection
Sled control signal output
Sled feed signal input from the microcontroller
Sled feed signal input from the microcontroller
Oscillator frequency setting
No connection
Sled servo off control input
Tracking servo gain RF level follower function setting
Spindle 8 cm/12 cm mode switching control from the DSP
E/F balance adjustment signal input from the DSP
Focus search control signal input from the DSP
Laser on/off control from the DSP
No connection
Track jump signal input from the DSP
Tracking gain control signal input from the DSP
Tracking off control signal input from the DSP
TES signal output to the DSP
Output for the HFL signal that indicates whether the main beam is positioned over pits or mirror
CLV error signal input from the DSP
GND
RF output
In conjunction with the RF pin, sets the RF gain and sets the EFM 3T compensation constant
Output for control of the data slice level according to the DSP
Input for control of the data slice level according to the DSP
Disc defect detection output
RF level detection output
Focus search smoothing capacitor output
E/F balance variation range setting
Focus search mode setting
VCC
Reference voltage bypass capacitor connection
Reference voltage output
Disc defect detection time constant setting
RF signal peak hold capacitor connection
RF signal bottom hold capacitor connection
APC circuit output
APC circuit input
No connection
No. 6125-4/17

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9251M 전자부품, 판매, 대치품
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Continued from preceding page.
Pin No.
Pin
17 FD
26 SPD
49 SLC
LA9251M
Internal equivalent circuit
VCC
250
49 26 17
19 FA
20 FA
21 FE
19
240k
15pF
20
40k
21
VREF
GND
VREF
250
VCC
GND
250
VCC
23 SP
45 CLV
24 SPG
45
30k
80k
23
80k
23
SP
24
GND
VREF
10k
250
VCC
GND
5pF
50k
VREF
VCC
250
GND
Continued on next page.
No. 6125-7/17

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9251M

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