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HUL7254 Datasheet

  • HUL7254

  • Opto-Electronic Device - Hologram Unit

  • 3頁(yè)

  • ETC

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Hologram Unit
HUL7254
Hologram unit for CD/CD-ROM drive
Hall mark for No.1 pin on reverse side
Unit: mm
4.33鹵0.4
3擄
2.55鹵0.2
7擄
3.2鹵0.2
SEC. X-O-Y
For optical information processing
0.7脳4=2.8
3.3鹵0.2
9.8
6.8鹵0.2
蠁6.8
鈭?.05
+0
0.78鹵0.2
(at the shoulder)
0.50鹵0.2
I
Applications
鈥?/div>
CD-ROM drive (slim type)
2.55鹵0.2
7擄
6.7鹵0.2
SEC. X-O-Y
Note) 1.
2.
3.
4.
I
Absolute Maximum Ratings
Parameter
Laser beam output
Laser reverse voltage
Supply voltage
*
Reference voltage
Operating ambient temperature
Storage temperature
Symbol
P
O
V
R(LD)
V
CC
V
C
T
opr
T
stg
Rating
3.6
2
6
+1.3
to V
CC
鈭?/div>
1.3
鈭?0
to
+60
鈭?0
to
+85
Unit
mW
V
V
V
擄C
擄C
Standard corner R
=
0.20 max.
Thickness of plate : Ni 1
碌m
min.
+
Au 0.1
碌m
min.
Thickness of hologram = 2.3 mm, n = 1.519
Apparent emitting point in figure is designed without
consideration of optical pass in HOE.
Note) *: Recommended supply voltage is 4.5 V to 5.5 V.
I
Block Diagram
1
Pmon
P2
2
3
4
5
Band GAP
P4
P8
P1
P6
P3
P7
P9
P5
P10
7
6
8
10
LD
9
1.33鹵0.2
鈥?/div>
Semiconductor laser and photodetector are
integrated through using micro-mirror.
鈥?/div>
Focus error signal detection: SSD method
鈥?/div>
Tracking error signal detection: 3-beam method
鈥?/div>
Low-power semiconductor laser included
鈥?/div>
Built-in I-V conversion amplifier
O
8
7
6
Y
X
Reference plane
Apparent emitting point
Apparent emitting point
Reference plane
Reference plane
0.25 (Lead frame)
3.0鹵0.4
3.3鹵0.2
I
Features
1
2
3
4
5
10
9
Publication date: October 2001
SHH00003AED
1

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