Hologram Unit
1
Publication date: October 2001
SHH00003AED
HUL7254
Hologram unit for CD/CD-ROM drive
For optical information processing
I Features
Semiconductor laser and photodetector are
integrated through using micro-mirror.
Focus error signal detection: SSD method
Tracking error signal detection: 3-beam method
Low-power semiconductor laser included
Built-in I-V conversion amplifier
I Applications
CD-ROM drive (slim type)
I Absolute Maximum Ratings
Note) *: Recommended supply voltage is 4.5 V to 5.5 V.
Note) 1. Standard corner R
= 0.20 max.
2. Thickness of plate : Ni 1
m min. + Au 0.1 m min.
3. Thickness of hologram = 2.3 mm, n = 1.519
4. Apparent emitting point in figure is designed without
consideration of optical pass in HOE.
0.25 (Lead fr
ame)
6.8
+0
-0.05
9.8
6.8
0.2
3.3
0.2
0.7
4
=
2.8
X
Y
O
Apparent emitting point
Apparent emitting point
Hall mark for No.1 pin on reverse side
Reference plane
Reference plane
3.2
0.2
3.3
0.2
4.33
0.4
2.55
0.2
2.55
0.2
3.0
0.4
6.70.2
7
7
3
0.50
0.2
0.78
0.2
(at the shoulder)
1.33
0.2
Reference plane
5
4
3
2
1
6
7
8
9
10
SEC. X-O-Y
SEC. X-O-Y
Unit: mm
Parameter
Symbol
Rating
Unit
Laser beam output
P
O
3.6
mW
Laser reverse voltage
V
R(LD)
2
V
Supply voltage
*
V
CC
6
V
Reference voltage
V
C
+1.3 to V
CC
- 1.3
V
Operating ambient temperature
T
opr
-10 to +60
C
Storage temperature
T
stg
-40 to +85
C
I Block Diagram
1
10
2
4
5
9
7
P3
Band GAP
P2
Pmon
LD
8
6
P7
P4
3
P9
P8
P5
P1
P10
P6
Please read the following notes before using the datasheets
A. These materials are intended as a reference to assist customers with the selection of Panasonic
semiconductor products best suited to their applications.
Due to modification or other reasons, any information contained in this material, such as available
product types, technical data, and so on, is subject to change without notice.
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Consult our sales staff in advance for information on the following applications:
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2001 MAR
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