Sharp IS1682 Datasheet

Under development

New product

IS1682

OPIC Light Detector for X40 Speed CD-ROM Drive

General Description

Sharp's IS1682 is OPIC light detectors which
are used for pick-up in X40 speed CD-ROM drive.
They improve noise resistance characteristics and
enable to read low reflective CD-RW due to built-in
RF amp.

Features

(1)

High speed response(Response frequency: MIN. 45MHz)

(Best suited for optical pick-up in X40 speed CD-ROM drive)
(2) With built-in RF amplifier
(Integrates 6-division PIN photodiode and
amplifier circuit onto a single chip)
(3) Compact and thin package
(Dimensions: 5.0 x 4.0 x 1.5mm)
(4) Possible to supply custom-made detecting pattern
(5) Pair use with Sharp's laser diode is recommended.
Laser diode : 780 nm / 5 mW (LT022 series )
770 to 795 nm /60 mW ( LT041NS )

Applications

Detecting Pattern of Photodiode

(1) CD-ROM drive(to 40X speed)
(2) CD-ROM drive for CD-RW

124

200

Absolute Maximum Ratings

Parameter

Supply voltage

*1 Output voltage

Operating temperature

Storage temperature Tstg

Soldering temperature

*2

*1 Applies to V

A to VF,VRF

Symbol

Vcc

Vo

Topr

−30 to +80

−40 to +100 ˚C

Tsol

Rating

6.0 V

Vcc

260

*2 For MAX.3s at the position of 1.0mm from the resin edge.

Outline Dimensions

380

66

66

88

F

5

D

C

120

5

A

B

6

˚

(Ta=25˚C)

Unit

V

˚C

˚C

OPIC Light Detector

(Unit: mm)

6

8

9

10

0.4

0.35

1

1.5

* "OPIC"(Optical IC)is a trademark of the SHARP Corporation. An OPIC consists of a
light-detecting element and signal-processing circuit integrated ontoa single chip.

Unit: µm

124

E

6

˚

4-15

4-15

7

(2.2)

2.0

4.0

8.4

0.15

P=0.8

2

3

4

5

5.0

Terminal connection

1

D

V

2

VA GND

3

VRF

4

VB

5

VC

10

VE

6
7
8

VS

9

Vcc
VF

Internal Block Diagram

Vcc

GND

−

A

B

C

D

+

−

+

−

+

−

+

−

E

+

−

F

+

−

+

V
V

V

V

V

V

V

V

Bias circuit

S

A

B

C

D

E

F

RF

(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.

• Specifications are subject to change without notice for improvement.

(Internet)

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

Tec.IS980701

IS1682

OPIC Light Detector

Recommended Operating Conditions

Parameter
Operating supply voltage
Operating supply voltage 1
Operating supply voltage 2

Symbol

Vcc

Vs
Vs

Electrical Characteristics 1

MIN. TYP. MAX.

4.75

2.0

2.4

5.0

2.1 2.2

2.5

(Ta=25˚C,Vcc=5V,Vs=2.1V,RL=10kΩ [ V

5.25

2.6 V

terminal : R

RF

(Ta=25˚C)

Unit

V
V

= 0 Ω ] CL= 10 pF)

L

Parameter Symbol Conditions MIN. TYP. MAX. Unit
Supply current
Output off-set voltage 1
Output off-set voltage 2
Output off-set voltage 3

Extremes of off-set voltage

Icc 8.8 14.8 20 mA Vcc

od1

V

Specified by voltage difference from Vs

Vod2

Specified by voltage difference from Vs

Vod3

∆Vod

−

−25 0 +25 mV

−15 0 +15

Refered to GND

A - B
C - D

(A+C) - (B+D)

E - F

A+B+C+D

1.25 1.4 1.55

−20 0 +20

−20 0 +20

−20 0 +20

−15 0 +15

−40 +5 +50

(Ta=25˚C,Vcc=5V,Vs=2.5V,RL=10kΩ [ V

terminal : R

RF

mV

V

mV

= 0 Ω ] CL= 10 pF)

L

Parameter Symbol Conditions MIN. TYP. MAX. Unit

od1

Output off-set voltage 4
Output off-set voltage 5
Output off-set voltage 6

Extremes of off-set voltage

V
Vod2
Vod3

∆V

od

Electrical Characteristics 2

Specified by voltage difference from Vs
Specified by voltage difference from Vs

Reffered to GND

(A+C) - (B+D)

E - F

A+B+C+D

−25 +2

−16

1.25 1.4

−22

−15 +15

−40

(Ta=25˚C,Vcc=5V,Vs=2.1V,RL=10kΩ [ V

+13

+28

0

+16

1.55

0

+22

0

+62

terminal : R

RF

mV
mV

mV

= 0 Ω ] CL= 10 pF)

L

Parameter Symbol Conditions MIN. TYP. MAX. Unit

*3*4 Sensitivity 1
*3*4 Sensitivity 2
*3*4 Sensitivity 3

*5 Extreme of sensitivity

Sensitivity ratio 1
Sensitivity ratio 2

*4*6 Response frequency 1
*4*6 Response frequency 2
*4*6 Response frequency 3

*4*6 Response frequency 4

*4 High level output voltage 1

*4 High level output voltage 2

*4 Response sensitivity 1

*4 Response sensitivity 2

*4*7 Group delay deviation 1
*4*7 Group delay deviation 2

Output noise level 1 V
Output noise level 2

P1 - mV/µW VA to VD

R
R

P2

RP3
∆RP

RP2/RP1
RP3/RP1

fc1
fc2

fc3
fc4

VOH1

VOH2

∆Rp1

∆Rp2

tgd1
tgd2

n1

n2

V

Averge of VA to VD

1 MHz to 23.1 MHz
1 MHz to 23.1 MHz

Average of f=1 to 23.1MHz,VA to VD

f=23.1MHz,BW=30kHz
f=23.1MHz,BW=30kHz

-

-

-

-

-

-3dB

-3dB

-3dB -

-

-

f=1 to 23.1MHz

18.0 24.6 31.2

31.2 44.7 58.1

30.2

-

--

1.67
34
55

1

45

3.8

3.8

-1.0

-1.0

-

-

-

-

43.2

-

1.81

1.76
65
75

5

65

-

-

+1.0
+1.0

2.5

2.5

-81

-70

mV/µW

56.1

mV/µW

10

%

-

1.84

-

-

-

MHz
MHz
MHz

-

-

-

+2.0
+2.0

6
6

MHz

V

V

dB
dB

ns

ns

-76 dBm

-65 dBm

*3 10µW, φ30µm of DC light is applied to the center of each photodiode.
Under that condition, sensitivity R is shown by following formula.

p-Vod)/5µW

R=(V
*4 Light source : laser diode of λ=780nm

*5 Extreme of sensitivity is shown by following formula.
2 x (Rp
2 x (Rp

1max-Rp1min)/(Rp1max+Rp1min) x 100
2max-Rp2min)/(Rp2max+Rp2min) x 100

*6 Frequency sensitivity is -3dB.(reference sensitivity : value at f= 1 MHz)

*7 In addition to 10µW, φ30µm DC light, 4µWp-p AC light is applied to the center of each photodiode. BW=10kHz

Applications

Applications

V

Applications

V

V

VA to VD

VA to VD

VA to VD

VE,VF

VRF

A,VB

V

C,VD

V

A to VD

V

E,VF

V

VA to VD

VA to VD

VE,VF

VRF

A to VD

V

V

E,VF

VA to VD

E,VF

V

V

RF

-

-

-

A to VF

VRF

VE,VF

A to VD

VRF

VA to VF

RF

V

VA to VD

RF

V

VRF

As of June 1998

Tec.IS980701