Sharp LT0H49T, LT0H49L Datasheet

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d
v

Under development

New product

LT0H49L/T

Compact Hologram Lase

Compact Hologram Laser(3-beam) for 16X Speed CD-ROM Drive

Features

(1) Built-in high speed(TYP.30MHz) OPIC* for 16X
speed CD-ROM drive
(2) Enables to design compact pick-up thanks to
compact package (Thickness: 4.8mm)
(3) Voltage output type
(Needless of external noise solution)
(4) Low current operation type
(Operating current : TYP. 36mA)

Applications

CD-ROM drives

Model Name

• LT0H49L----Single power supply

• LT0H49T----Dual power supply

*OPIC: OPIC (Optical IC) is a trademark of the SHARP Corporation.

An OPIC consists of a light-detecting element and signal-processing circuit
integrated onto a single chip.

Outline Dimensions

ø8.2

MIN.

0.25

ø

Hologram glass

Cap glass

0.25

LD chip
Reference surface

[Terminal connection]

D3

D4 D1D2 D5

6.63

3.2

ø

P1.4X3=4.2

1

10

9

4.9

(Unit:mm)

MIN.

0.25

2.0

4.77

MAX.

1.27

0.3

1.2

4.6

10 -ø0.4

8.2

4

3

2

5

7

8

6

4.8

2.8

Vcc

8

4

VA

6

VB

2

VC

3

VE
VF

7

1/2Vcc

9

GND

5

10

LD

Monitor PD

1

4.8

3.97

(LT0H49L)

Model Name

*1 Optical power output

Reverse
voltage

(Tc=25˚C)

Parameter Ratings Unit

Laser 2

Monitor photodiode

Symbol

HP

VR

4.3 mW

30 V

Monitor PD

1

*1 Output power from hologram laser
*2 Case temperature
*3 At the position of 1.6mm from the
bottom face of resin package

(LT0H49T)

OPIC supply voltage VCC 6
*2 Operating temperature

*2 Storage temperature
*3 Soldering temperature

(Notice)

• In the absence of device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP
shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP de

• Specifications are subject to change without notice for improvement.

(Internet)

• Data for Sharp's optoelectronic/power devices is provided for internet. ( Address http://www.sharp.co.jp/ecg/)

Topr
Tstg
Tsol 260(5s or less)

-10 to +70

-40 to +85

˚C

As of January 1997

Tec.970101

LT0H49L/T

Electro-optical Characteristics

Parameter
Threshold current Ith - - 25 mA
Operating current Iop - 36 45 mA
Operating voltage Vop P =2.7mW

Laser

Wavelength p 770 780 795 nm
Monitor current

Emission point
Accuracy(position)

Differential efficiency
Sensitivity(*) S - 0.10 - mA/mW

Monitor
photodiode

Dark current ID VR=15V - - 150 nA
Terminal capacitance
Operating supply voltage
Collector current Icc Vcc=5V 2.0

OPIC for
signal
detection

Output off-set voltage
Extremes of off-set voltage

Response frequency*2

* Sensitivity for output power from hologram laser
*1 Applicable divisions correspond to pattern segment No.

(Vcc=5V, Tc=25˚C)

Symbol

Conditions Unit

MIN. TYP. MAX.

Remarks*1

39

H

Im

P

H=2.7mW, VR=15V

LT0H49L

LT0H49T
x
y- -80m
z -80m

1.8mW

Iop(2.7mW)-Iop(0.9mW)

- 1.75 2.2 V

0.06 0.28 0.50

0.12 0.55 1.00

-80

-80 m

mA

-80

-80

0.17 0.27 0.55 mW/mA

Ct - 9 - pF

Vcc 4.5 - 5.5 V

9.0 mA

4.5

VOD

VOD

Vcc=5V, No light

R

fc Vcc=5V,-3dB - MHZ

Difference from Vcc/2

-25 0 25 mV

-15 0 15 mV

24.0

30.0

-MHZ

2.01.0

VA~F
VA-VB,VE-VF

VA,VB,VCfc Vcc=5V,-3dB(*3)

VE,VF

D 1
D 2
D 3
D 5

D 4

Fig.1

Terminal No.

D 1 V
D 2 VA

D 3 VB
D 4 VC
D 5 VF

E

*2 Output amplitude = 0dB(input signal 100MHz)

*3 f

CF=(fc(VA)+fc(VB)+2fC(VC))/4

Note)Please attach bypass capacitor at the position of 1cm or less from pins (between Vcc and GND, GND and 1/2Vcc).

[Ex.]

Hologram
laser

Vcc

GND

1/2Vcc

0.022µF

0.022µF

10µF

10µF

+

­+

-

As of January 1997

Tec.970101