LA9251M Datasheet, PDF (3/17 Pages) Sanyo Semicon Device – CD Player Analog Signal Processor (ASP)

Continued from preceding page.
LA9251M
Parameter
[Spindle Amplifier]
Offset 12
Offset 8
Offset off
Output voltage H12
Output voltage H8
[Sled Amplifier]
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
Symbol
Conditions
SPD12ost At SPD, the difference from VR, SP8 = 0 V: 12 cm mode
SPD8ost At SPD, the difference from VR, SP8 = 3 V: 8 cm mode
SPDof At SPD, the difference from VR, SP8 = 3 V: 8 cm mode
The difference from offset 12,
SPD-H12 _{SP8 = 0 V, 12 cm mode, CLV = 3 V}
The difference from offset 8,
SPD-H8 _{SP8 = 3 V, 8 cm mode, CLV = 3 V}
SLDost SLEQ = VR, the difference from VR
SLDof SLOF = High
SLCo SLC
SCIo SCI, the difference from VR
SCIvthH SCI, the difference from VR
SCIvthL SCI, the difference from VR
DEFvth
The difference between the LF2 voltage when DEF is
detected with RF = 1.9 V and the LF2 voltage when
RF = 1.9 V.
DEF-H
DEF-L
LDS The LDS voltage such that LDD = 1.5 V
LDDof LDD
Ratings
Unit
min
typ
max
–40
0
+40 mV
–40
0
+40 mV
–40
0
+40 mV
0.35
0.50
0.65
V
0.10
0.20
0.30
V
–80
–40
1.0
–40
90
–190
0.20
2.5
120
2.7
0
0
1.5
0
140
–140
0.35
2.9
0
170
2.9
+80 mV
+40 mV
2.0
V
+40 mV
190 mV
–90 mV
0.50
V
V
0.5
V
220 mV
V
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Pin
FIN2
FIN1
E
F
TB
TE^–
TE
TESI
SCI
TH
TA
TD^–
TD
JP
TO
(NC)
FD
FD^–
FA
FA^–
FE
FE^–
SP
SPG
Function
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)
Continued on next page.
No. 6125-3/17