106
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
GH6C605B3A/GH6C605B3B/GH6C605B5A/GH6C605B5BHologram Lasers
■Absolute Maximum Ratings (TC=25˚C)
❇1Output power from hologram laser,
CW (Continuous Wave) drive
❇2Case temperature
❇3At the position of 1.6mm from the lead base
(Within 5s)
Parameter Symbol Rating Unit
❇1Optical power output PH4.3 mW
Reverse voltage Laser VR
2V
❇2Operating temperature Topr -10 to +70 ˚C
❇2Storage temperature Tstg -40 to +85 ˚C
❇3Soldering temperature Tsold 260 ˚C
Monitor photodiode
30
OPIC supply voltage VCC 6V
V
GH6C605B3A/GH6C605B3B
GH6C605B5A/GH6C605B5B
■Outline Dimensions
Resin type Hologram Laser for CD-
ROM Drive(Equivalent to ✕40 Speed)
(Unit : mm)
■Features
(1) With built-in high speed response OPIC❇(MIN. 40MHz)
(2) For CD-ROM drives (equivalent to ◊40 speed)
(3) Insert frame structure enables easy mounting compared
to conventional pin structure.
(4) Thin and compact package enables thin and compact
pick-up design.
GH6C605B3A/B : 4.8mm thickness
GH6C605B5A/B : 3.0mm thickness
(5) With built-in beam splitter and diffraction grating
❇OPIC : (Optical IC) is a trademark of SHARP Corporation.
An OPIC consists of a light-detecting element
and a signal-processing circuit integrated onto a
single chip.
■Model No.
(1) GH6C605B3A/GH6C605B5A ....Dual power supply
(2) GH6C605B3B/GH6C605B5B ....Single power supply
■Applications
(1) DVD-ROM drives
(2) CD-ROM drives for notebook PCs
ø8.2 +
–0
0.05
ø6.1 to 6.3
ø6.6±0.2
3.2±0.15
4.77±
0.15
3.8±
0.5
2.0±0.15
(0.8±
0.2
)
3.3±
0.2
1.2±
0.2
12-0.4±0.1
2±
0.2
(0.5±
0.2
)
ø7.5
MAX.
Hologram device
Emission point
1.39
±0.1 from reference plane
Reference plane
Z
XY
Z
X
Y
Y
Z
X
3.97±0.2
4.8 +
–0
0.1
1.5±0.1
2.4±0.15
ø8.2
+
–
0
0.05
0.4±0.1
45˚±1˚
45˚±1˚
4.8
+
–
0
0.1
0.8±0.2◊5=4±0.2
GH6C605B3A
GH6C605B3B
GH6C605B5A
GH6C605B5B
ø8.2 +
–0
0.05
ø6.1 to 6.3
ø6.6±0.2
3.2±0.15
4.77±
0.15
3.8±
0.5
2.0±0.15
(0.8±
0.2
)
3.3±
0.2
1.2±
0.2
12-0.4±0.1
2±
0.2
(0.5±
0.2
)
ø7.5
MAX.
Hologram device
Emission point
1.39
±0.1 from reference plane
Reference plane
Z
XY
Z
X
Y
Y
Z
X
3.97±0.2
4.8 +
–0
0.1
1.5±0.1
2.4±0.15
ø8.2
+
–
0
0.05
0.4±0.1
45˚±1˚
45˚±1˚
4.8
+
–
0
0.1
0.8±0.2◊5=4±0.2
D3
Vcc
LD
GND
VA
VB
VC
VE
VF
1/2Vcc
D4 D1D2 D5
NC
NC
Monitor PD
e
!1
o
y
u
r
t
i
!0
!2
q
w
Monitor PD
(GH6C605B5A)(GH6C605B3A)
(GH6C605B5B)(GH6C605B3B)
w
qwerty
!2!1!0oiu
Y
Z
X
Terminal connection Pin configuration
GH6C605B3A
GH6C605B3B
qwerty
!2!1!0oiu
Y
Z
X
GH6C605B5A
GH6C605B5B
107
GH6C605B3A/GH6C605B3B/GH6C605B5A/GH6C605B5BHologram Lasers
■Electro-optical Characteristics (VCC=5V, TC=25˚C)
❇1Distance between FES=0 and jitter minimum point
At the condition of FES sensitivity = 20%/1µm
❇2(a–b) / (a+b)
❇3
❇4Amplitude of VA+VB+2VC(focal servo ON, radial servo ON)
❇5VA–VB(Focal vibration)
❇6VE–VF(focal servo ON, radial servo OFF)
a–b
2◊(a+b)
a (+amplitude of RES)
b (–amplitude of RES)
GND
a (+amplitude of FES)
b (–amplitude of FES)
NA=0.50
f =4.5mm
NA=0.11
f =20.6mm
Disc
(SONY : YEDS-18)
Laser driver
APC circuit
Actuator
Collimated lens
Hologram laser
Measuring System of Hologram Laser
Parameter Symbol MAX. Unit
❇1Focal offset DEF +0.7 µm
0.47 V
Differential efficiency ηd0.55 mW/mA
Conditions MIN. TYP.
VRF=0.55V -0.7 -
0.23 0.35
2.0mW
I(3.0mW)-I(1.0mW) 0.17 0.27
❇2Focal error symmetry BFES VRF=0.55V -25 - +25 %
❇3Radial error balance BRES -25 - +25 %PH=3.0mW
❇4RF output amplitude VRF PH=3.0mW 0.42 1.00 - V
0.08 0.12 0.16 V
Threshold current Ith −-2539mA
Operating current Iop PH=3.0mW - 36 50 mA
Operating voltage Vop PH=3.0mW - 1.85 2.2 V
Wavelength λpPH=3.0mW 770 780 795 nm
0.05 0.2 0.60 mA
Output current ImPH=3.0mW, VR=15V 0.06 0.32 0.60 mA
❇5FES output amplitude
❇6RES output amplitude
GH6C605B3A/GH6C605B5A
GH6C605B3B/GH6C605B5B
VFES VRF=0.55V
VRES VRF=0.55V
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
108
GH6C605B3A/GH6C605B3B/GH6C605B5A/GH6C605B5BHologram Lasers
■Electrical Characteristics of Monitor Photodiode (Design Standard*)
(GH6C605B3A/GH6C605B5A) (TC=25˚C)
■Electro-optical Characteristics of Laser Diode (Design Standard*) (TC=25˚C)
Parameter Symbol MAX. Unit
Emission
characteristics
❇1Symmetry
S// +25 %
+15
Misalignment position
∆x+80 µm
∆z+80 µm
Interference pattern intensity α0.99 -
Conditions MIN. TYP.
Parallel -25 -
Perpendicular
-15 - %
-80 -
-80 -
Po=3mW - -
S⊥
∆y-80 - +80 µm
Po=3mW, Into NA=0.11
−
Parameter Symbol MAX. Unit
❇2Sensitivity S-mA/mW
150
Terminal capacitance Ct-pF
Conditions MIN. TYP.
- 0.11
Dark current -- nA
- 3.5
IDVR=15V
■Electro-optical Characteristics of OPIC for Signal Detection (Design Standard*) (TC=25˚C)
Parameter Symbol Unit
❇3
Segment
Supply voltage VCC V
Response frequency fCF MHz VA, VB, VC
Conditions MIN. TYP.
4.5 5
40 55
❇1Measuring method of radiation symmetry
❇3Applicable divisions correspond to output terminals. ❇4Difference from Vcc/2
❇5Output amplitude=0dB (input signal 100kHz) BW=10kHz
Segment No. Output
D 1 ...............................................VE
D 2 ...............................................VA
D 3 ...............................................VB
D 4 ...............................................VC
D 5 ...............................................VF
D1
D2
D3
D5
D4
MAX.
5.5
Supply current ICC VCC=5V 6 9 12 mA
-15 0 +15 mV VE, VF
-15 0 +15 mV VE-VF
❇5VCC=5V, -3dB
RL=10kΩ, CL=10pF
-
57 -MHz VE, VF
fCR
❇4Output offset voltage VOD VCC=5V
No light
-25 0 +25 mV VA, VB, VC
Offset voltage difference ∆VOD
-25 0 +25 mV VA-VB
(GH6C605B3B/GH6C605B5B) (TC=25˚C)
Parameter Symbol MAX. Unit
❇2Sensitivity S-mA/mW
150
Terminal capacitance Ct-pF
Conditions MIN. TYP.
- 0.07
Dark current -- nA
- 7.7
IDVR=15V
❇2For hologram output power
* These parameters are not guaranteed performance, but general specifications of each optical element which makes up a hologram laser.
• Please refer to the chapter "Handling Precautions"
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
109
Hologram Lasers
Notice In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
Internet Internet address for Electronic Components Group http://sharp-world.com/ecg/
20 40 60
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
Optical power output PH(mW)
Tc=25˚C
Tc=50˚C
Tc=60˚C
Tc=70˚C
Forward current I F(mA)
775
780
785
790
795
800
805
810
Wavelength λ(nm)
0 20406080
Case temperature Tc(˚C)
0
5
10
15
20
25
30
35
40
45
50
Threshold current Ith(mA)
0 20406080
Case temperature Tc(˚C)
01020304050
Forward current I F(mA)
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Forward voltage VF(V)
Optical power output - Forward current Case temperature dependence of wavelength
Case temperature dependence of threshold current
Forward voltage - Forward current
GH6C605B3A/GH6C605B3B/GH6C605B5A/GH6C605B5B
Note) Characteristics shown in diagrams are typical values. (not assurance value)
150
Application Circuits
NOTICE
●The circuit application examples in this publication are provided to explain representative applications of
SHARP devices and are not intended to guarantee any circuit design or license any intellectual property
rights. SHARP takes no responsibility for any problems related to any intellectual property right of a
third party resulting from the use of SHARP's devices.
●Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
SHARP reserves the right to make changes in the specifications, characteristics, data, materials,
structure, and other contents described herein at any time without notice in order to improve design or
reliability. Manufacturing locations are also subject to change without notice.
●Observe the following points when using any devices in this publication. SHARP takes no responsibility
for damage caused by improper use of the devices which does not meet the conditions and absolute
maximum ratings to be used specified in the relevant specification sheet nor meet the following
conditions:
(i) The devices in this publication are designed for use in general electronic equipment designs such as:
--- Personal computers
--- Office automation equipment
--- Telecommunication equipment [terminal]
--- Test and measurement equipment
--- Industrial control
--- Audio visual equipment
--- Consumer electronics
(ii)Measures such as fail-safe function and redundant design should be taken to ensure reliability and
safety when SHARP devices are used for or in connection with equipment that requires higher
reliability such as:
--- Transportation control and safety equipment (i.e., aircraft, trains, automobiles, etc.)
--- Traffic signals
--- Gas leakage sensor breakers
--- Alarm equipment
--- Various safety devices, etc.
(iii)SHARP devices shall not be used for or in connection with equipment that requires an extremely
high level of reliability and safety such as:
--- Space applications
--- Telecommunication equipment [trunk lines]
--- Nuclear power control equipment
--- Medical and other life support equipment (e.g., scuba).
●Contact a SHARP representative in advance when intending to use SHARP devices for any "specific"
applications other than those recommended by SHARP or when it is unclear which category mentioned
above controls the intended use.
●If the SHARP devices listed in this publication fall within the scope of strategic products described in the
Foreign Exchange and Foreign Trade Law of Japan, it is necessary to obtain approval to export such
SHARP devices.
●This publication is the proprietary product of SHARP and is copyrighted, with all rights reserved. Under
the copyright laws, no part of this publication may be reproduced or transmitted in any form or by any
means, electronic or mechanical, for any purpose, in whole or in part, without the express written
permission of SHARP. Express written permission is also required before any use of this publication
may be made by a third party.
●Contact and consult with a SHARP representative if there are any questions about the contents of this
publication.