Features
Applications
L E D / P H O T O I C
Red LED/photo IC for optical link
Light emitter/sensor compatible with IEEE1394/S100
L7726/S9022
PRELIMINARY DATA
Aug. 2002
L7726, H9020, S9022 and H9021 devices are POF (Plastic Optical Fiber) link devices that conform to p1394.b (proposal in IEEE1394). The
transmitter is comprised of L7726 LED and its driver IC H9020. The receiver consists of S9022 monolithic photo IC integrating a photodiode with
an analog amplifier and its output comparator H9021. These devices make it easy to configure high-speed optical links with transmission rates
of up to 125 Mbps.
l L7726 red LED and H9020 LED driver IC
l Peak emission wavelength: 650 nm
l High-speed response and high output power
l LVPECL input
l Home networks and short-range high-speed data
communications
Transmitter
Receiver
l S9022 photo IC and H9021 comparator
l 4 M to 125 Mbps
l Monolithic photo IC (S9022)
l LVPECL output
l Wide dynamic range
l Signal detecting function
Symbol Recommended
value
C1
C2
C3
R1
R2
0.1 F
4.7 F
15 pF
220
560
R3
36
1
I Absolute maximum ratings (Ta=25 C)
Parameter
Symbol
Value
Unit
Forward current
If
40
mA
L7726
Reverse voltage
V
R
1.5
V
Supply voltage
Vccmax
-0.5 to +7
V
H9020
Input voltage
Vimax
-0.5 to Vcc+0.5
V
Operating temperature
Topr
-20 to +70
C
Storage temperature
Tstg
-40 to +85
C
I Electrical and optical characteristics[Ta=25 C, Vcc=4.75 to 5.25 V (H9020)]
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Data rate
fD
NRZ
DC
-
125
Mbps
Peak emission wavelength
lp
640
650
660
nm
Spectral half width (FWHM)
Dl
-
10
-
nm
L7726
Fiber coupled optical power
Po
*
1,
*
3
-6.5
-
-3
dBm
Current consumption
Icc
Vin=2.0 V
-
-
30
mA
High level input voltage
Vih
2.15
-
2.4
V
H9020
Low level input voltage
Vil
1.5
-
1.75
V
Pulse width distortion
Dt
50 % *
2,
*
3
-1
-
+1
ns
Jitter
Dtj
50 % *
2,
*
3
-
-
+1.5
ns
*1: Average value (duty ratio 50 %) measured with a plastic fiber GH4001 (f1 mm SI-POF, NA=0.5) made by Mitsubishi Rayon.
*2: Pseudo-random bi-phase signal at 125 Mbps.
*3: Measured with the recommended driver circuit shown below.
5 V
POSITIVE INPUT
(BPOp)
NEGATIVE INPUT
(BPOn)
D
C1
LED
L7726
C3
R1
R3
H9020
ANODE
CATHODE
C2
+
DB
GND
R2
I Recommended connection circuit
KLEDC0020EB
Transmitter (L7726, H9020)
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 2002 Hamamatsu Photonics K.K.
Cat. No. KPIC1049E02
Nov. 2002 DN
Red LED/photo IC for optical link
L7726/S9022
Symbol
Recommended
value
C1
C2
C3
C4
C5
0.1 F
4.7 F
0.1 F
4.7 F
0.1 F
Symbol
Recommended
value
C6
R1
R2
R3
R4
0.1 F
82
120
82
120
(
)
S9022
H9021
C1
Vcc
GND
Vcc
GND
SD
QB
Q
5 V
3.3 V
GND
POSITIVE INPUT
(BPlp)
NEGATIVE INPUT
(BPln)
SIGNAL DETECTION
(SD)
QB
INB
IN
Q
C5
C6
C2
+
C3
C4
+
R2
R4
R1
R3
S
b l
Recommended
S
b l
Recommended
2
I Dimensional outlines (unit: mm)
KPICA0048EA
I Absolute maximum ratings(Ta=25 C)
Parameter
Symbol
Value
Unit
Supply voltage
Vcc
-0.5 to +7.0
V
Output voltage
Vo
-0.5 to Vcc+0.5
V
Operating temperature
Topr
-20 to +70
C
Storage temperature
Tstg
-40 to +85
C
I Electrical and optical characteristics[Ta=25 C, Vcc=4.75 to 5.25 V (S9022), Vcc=3.0 to 3.6 V (H9021)]
*
4
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Data rate
fD
Bi-phase signal
4
-
250
Mbps
Minimum overload
Pimax
-2
-
-
dBm
Minimum receiver input power
Pimin
-
-
-20
dBm
Signal detection level
Psd
-
-
-22
dBm
S9022
C
L
=3 pF, R
L
=, *
5
-
20
30
Current
consumption
H9021
Icc
-
-
60
mA
High level output voltage
Voh
Vcc -1.1
-
Vcc -0.8
V
Low level output voltage
Vol
Vcc -1.8
-
Vcc -1.6
V
Rise time
tr
-
-
2
ns
Output
voltage
Fall time
tf
10 to 90 % *
6
-
-
2
ns
Pulse width distortion
Dt
*
6
-1.5
-
+1.5
ns
Jitter
Dtj
*
6
-
-
+1.5
ns
High level output voltage
Vmh
No-load
Vcc -1.1
-
-
V
SD
Low level output voltage
Vml
No-load
-
-
Vcc -1.6
V
*4: Measured with the recommended driver circuit shown below.
*5: Average value (duty ratio 50 %) *6: Pseudo-random bi-phase signal at 125 Mbps.
I Recommended connection circuit
KPICC0086EA
5.0
4.5 0.3
(INCLUDING B
URR)
5.2 0.3
(INCLUDING BURR)
0.5
1.27
(SPECIFIED AT THE LEAD ROOT)
1.27
1.27
0.4
1.4
(2.15)
(1.5)
5.7 0.4
4.3
(0.9)
10
10
5.0
(0.9)
L7726
Pin No.
S9022
QB
GND
Q
Vcc
CATHODE
CATHODE
ANODE
CATHODE
1.77
0.97
0.69
10
(0.9)
4.3
0.25
10
1.8
Tolerance unless otherwise
noted: 0.1, 2
Shaded area indicates burr.
Values in parentheses indicate
reference value.
KPICA0049EB
H9020
Pin No.
H9021
SD
Q
GND
QB
INB
GND
IN
Vcc
DB
D
Vcc
NC
GND
GND
LED
NC
5.0 0.3
1.27
0.74 MAX.
0.35 0.1
0.15
-0.05
+0.1
5.0 0.2
0.5 0.2
10
1.6 0.15
0.15 0.1
6.8 0.4
Tolerance unless otherwise
noted: 0.1, 2
Shaded area indicates burr.
Values in parentheses indicate
reference value.
H9020, H9021
L7726, S9022
Receiver (S9022, H9021)
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