la9251m Sanyo Semiconductor Corporation, la9251m Datasheet - Page 3

• Manufacturer Part Number: la9251m
• Description: Cd Player Analog Signal Processor Asp
• Manufacturer: Sanyo Semiconductor Corporation

Continued from preceding page.
Pin Functions
[Spindle Amplifier]
[Sled Amplifier]
Pin No.
Offset 12
Offset 8
Offset off
Output voltage H12
Output voltage H8
Offset SLD
Offset off
SLC no-signal voltage
Shock no-signal voltage
Shock detection voltage (high)
Shock detection voltage (low)
DEF detection voltage
DEF output voltage (high)
DEF output voltage (low)
APC reference voltage
APC off voltage
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
Parameter
FIN2
FIN1
TESI
(NC)
SPG
TE
SCI
TD
FD
FA
FE
Pin
TB
TE
TH
TA
TD
TO
FD
FA
FE
SP
JP
E
F
–
–
–
–
–
Pickup photodiode (focus, RF) connection
Pickup photodiode (focus, RF) connection
Pickup photodiode (tracking) connection
Pickup photodiode (tracking) connection
TE signal DC component input. Pickup photodiode (tracking) connection
TE signal gain setting resistor connection. A resistor is connected between this pin and TE.
TE signal output
TES comparator input. Takes the bandpass filtered TE signal as its input.
Shock detection input
Tracking gain time constant setting
TA amplifier output
In conjunction with the TD and VR pins, used to form the tracking phase compensation circuit constant
Tracking phase compensation setting
Track jump signal amplitude setting
Tracking control signal output
No connection
Focusing control signal output
In conjunction with the FD and FA pins, used to form the focusing phase compensation circuit constant
In conjunction with the FD- and FA- pins, used to form the focusing phase compensation circuit constant
In conjunction with the FA and FE pins, used to form the focusing phase compensation circuit constant
FE signal output
FE signal gain setting resistor connection. A resistor is connected between this pin and FE.
CLV pin input signal inverted output
Gain setting resistor connection (12 cm spindle mode)
SPD12ost At SPD, the difference from VR, SP8 = 0 V: 12 cm mode
SPD-H12
SPD8ost
SPD-H8
SCIvthH
SCIvthL
Symbol
SLDost
DEFvth
DEF-H
SPDof
DEF-L
SLDof
LDDof
SLCo
SCIo
LDS
At SPD, the difference from VR, SP8 = 3 V: 8 cm mode
At SPD, the difference from VR, SP8 = 3 V: 8 cm mode
The difference from offset 12,
SP8 = 0 V, 12 cm mode, CLV = 3 V
The difference from offset 8,
SP8 = 3 V, 8 cm mode, CLV = 3 V
SLEQ = VR, the difference from VR
SLOF = High
SLC
SCI, the difference from VR
SCI, the difference from VR
SCI, the difference from VR
The difference between the LF2 voltage when DEF is
detected with RF = 1.9 V and the LF2 voltage when
RF = 1.9 V.
The LDS voltage such that LDD = 1.5 V
LDD
LA9251M
Conditions
Function
min
–190
0.35
0.10
0.20
–40
–40
–40
–80
–40
–40
120
1.0
2.5
2.7
90
Ratings
typ
–140
0.50
0.20
0.35
140
170
1.5
2.9
2.9
0
0
0
0
0
0
0
Continued on next page.
max
0.65
0.30
0.50
+40
+40
+40
+80
+40
+40
190
–90
220
2.0
0.5
No. 6125-3/17
Unit
mV
mV
mV
mV
mV
mV
mV
mV
mV
V
V
V
V
V
V
V