
1
HUL7203
Hologram Unit
For optical information processing
Features
Smaller package size achieved through
micro-mirror integration
(4.8
×
8.2
×
4.3 mm)
Fast response (f
C
= 35 MHz)
Focus error signal detection : SSD method
Tracking error signal detection
: 3 beam method
Low-power semiconductor laser included
Applications
CD-ROM drives
(supports 20- to 24-time speed CD-ROM drives)
Hologram Unit
Electro-Optical Characteristics
(Ta = 25C)
Parameter
Symbol
P
O
I
OP
V
OP
λ
L
V
FE
V
TE
D
FE
f
C
Conditions
min
typ
0.18
35
1.9
795
480
310
12
35
max
0.25
40
2.4
815
620
430
16
Unit
mW
mA
V
nm
mV
mV
μ
m
MHz
Laser beam output
*1
Operating current
Operating voltage
Oscillating wavelength
Focus error signal amplitude
Tracking error signal amplitude
Focus error signal pull-in range
Frequency characteristics (–3 dB)
CW
CW V
RF
= 570mV, V
CC
= 5V
CW V
RF
= 570mV, V
CC
= 5V
CW V
RF
= 570mV, V
CC
= 5V
CW V
RF
= 570mV, V
CC
= 5V
CW V
RF
= 570mV, V
CC
= 5V
CW V
RF
= 570mV, V
CC
= 5V
25
775
340
190
9
30
*1
Light emitting output through objective lens
Unit : mm
0
8.0*
11.2
8.2
(0.2)
(0.5)
4
±
0
0
×
5
(
(
X
Y
O
Apparent emitting point
Apparent emitting point
Reference plane
Index mark for No.1
pin on reverse side
Reference plane
Reference plane
4
4
±
0
4.33
2.55
2
3
8.1
0
0
1
(Note): 1.Standard corner R=0.20 max.
2.Tolerance unless otherwise specified is
±
0.2
3.Thickness of plate:Ni 1
μ
m min.+Au 0.1
μ
m min.
4.Thickness of hologram=2.0mm, n=1.519
5.Tolerance of dimension with *(asterisk) is +0/–0.05
6
5
4
3
2
1
7
8
9
10
11
12
SEC. X-O-Y
SEC. X-O-Y
Absolute Maximum Ratings
(Ta = 25C)
Parameter
Symbol
P
O
V
R(LD)
V
R(mon)
V
R
T
opr
T
stg
Ratings
0.3
2
6
6
–
10 to +60
–
40 to +85
Unit
mW
V
V
V
C
C
Laser beam output
*1
Reverse voltage
Laser
Monitor
Supply voltage
Operating ambient temperature
Storage temperature
*1
Light emitting output through objective lens