Features
l
φ1.25 mm sleeve type ROSA (Receiver Optical
Sub-Assembly)
l
High-speed response: 1.25 Gbps
l
High gain with AGC (Auto Gain Control): 2.9 V/mW (-22 dBm)
l
Low power supply voltage: 3.3 V, 5 V
l
Differential output
l
Sensitivity: -1 to -26 dBm Typ.
Applications
l
SDH/SONET
l
Optical fiber communication
PHOTODIODE
ROSA type, 1.3/1.55 µm, 1.25 Gbps
G9282-14
InGaAs PIN photodiode with preamp
1
■ Absolute maximum ratings (Ta=25 °C)
Parameter Symbol Value Unit
Supply voltage Vcc -0.3, +5.5 V
Operating temperature Topr -20 to +70 *1°C
Storage temperature Tstg -40 to +85 *1°C
*1: No condensation
■ Electrical and optical characteristics
(Ta=25 °C, Vcc=3.3 V or 5 V, Vee=0 V, RL=50 Ω *2, λ=1310 nm, unless otherwise noted)
Parameter Symbol Condition Min. Typ. Max. Unit
Photo sensitivity S Pin= -22 dBm *32.5 2.9 - V/mW
Supply current Icc Dark state, RL=∞-35 41 mA
Vcc=3.3 V - 1.6 -
Output bias voltage Vo Dark state,
RL=∞Vcc=5.0 V - 3.3 - V
Cut-off frequency fc Pin= -22 dBm,
-3 dB (0 dB at 100 MHz) *3850 1000 -MHz
Low cut-off frequency fc-L -3 dB - DC - kHz
Noise equivalent power NEP
Dark state, DC to 938 MHz *
3
-260 370 nWrms
Minimum receivable sensitivity Pmin - -26 -
Maximum receivable sensitivity Pmax
1.25 Gbps, NRZ,
PN=23, BER=10-12,
Extinction ratio=9 dB --1 -
dBm
*2: Output: Capacitive coupling
*3: Single-ended (Vout+) mesurement
InGaAs PIN photodiode with preamp
G9282-14
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: Smidesvägen 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 an y of the circuits described herein. ©2004 Hamamatsu Photonics K.K.
Cat. No. KIRD1062E04
Dec. 2004 DN
2
■ Eye diagram
■ Photo sensitivity vs. average optical input power
KIRDB0294EB
■ Bit error rate
-30 -25 -15
-20 -10 -5 0
0.1
10
1
AVERAGE OPTICAL INPUT POWER (dBm)
PHOTO SENSITIVITY (V/mW)
(Typ. Ta=25 ˚C, Duty ratio=50 %, Pulse width=5 ns, λ=1310 nm)
KIRDB0295EB
-30 -20-21-22-23-24-25-26-27-28-29
10-12
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
AVERAGE OPTICAL INPUT POWER (dBm)
BIT ERROR RATE
(Typ. Ta=25 ˚C, Bit rate=1.25 Gbps, PN=23, λ=1310 nm)
Vout+
Vout-
Bit rate=1.25 Gbps, PN=23, λ=1310 nm
Pin= -20 dBm, Vcc=3.3 V
KGPDA0019EB
■ Dimensional outline
(unit: mm, unless otherwise noted: ±0.15)
Vcc
Vout+
Vee
Vout-
4.88
5.08
2.72
1.25
3.97
2.92
4.04 ± 0.051.27 ± 0.05
6.86 ± 0.5
4.64(13) 3.38 ± 0.05
4.17 ± 0.05 (OPTICAL REFERENCE
PLANE)
(90˚)
5.94 ± 0.07
5.92 ± 0.2
0.3
2.95 ± 0.1
6.6
5.4
2.54
(4 ×) 0.45 ± 0.1
■ Operating circuit example
KIRDC0063EA
LIGHT INPUT
COAXIAL
CABLE
TESTER
R
Vcc=3.3/5 V
Vee=GND
0.1 µF
0.1 µF
Vout+
Vout-
50 Ω
50 Ω
0.1 µF
AGC
