FEATURES
PIN photodiode for CATV/Analog applications
High Responsivity
Wide Bandwidth
Low Modulation Distortion
High Optical Return Loss: >40dB
High Frequency Response: >2.5GHz
APPLICATIONS
Analog Transmission Systems
AM and FM CATV systems
DESCRIPTION
The FID3S2KX is a PIN photodiode module with a single mode fiber pigtail specifically
designed for multichannel analog transmission systems. The photodiode uses a planar
structure to achieve low dark current, high responsivity and high reliability. The coupling optics
in the package is designed for very low optical reflection. The package is hermetically sealed.
Parameter
Symbol
Note 1
Note 4
Conditions
OPTICAL & ELECTRICAL CHARACTERISTICS
(Tc=25C, =1,310 and 1,500nm, Unless otherwise specified)
Unit
Limits
PIN Responsivity
R
VR=1V
A/W
VR=5V
Dark Current
ID
nA
Cut-off Frequency
fc
VR=5V, RL=50, Pin=-3dBm,
-3dB from 500kHz
GHz
2nd Order Intermodulation Distortion
IMD2
dBc
3rd Order Intermodulation Distortion
IMD3
dBc
Capacitance
Ct
VR=5V, f=1MHz,
pF
Max.
1.0
-
-
-
1.0
-80
-
-65
Optical Return Loss
ORL
dB
Typ.
0.90
0.1
2.0
-
-
0.8
-
45
0.8
-
1.5
-
-
2.5
-
40
Min.
Parameter
Storage Temperature
Operating Case Temperature
Symbol
Tstg
+85
-40
-40
+85
C
C
Top
PIN Forward Current
-
10
mA
IF
PIN Reverse Current
5
-
mA
IR
PIN Reverse Voltage
20
0
V
VR
Unit
ABSOLUTE MAXIMUM RATINGS (Tc=25C, Unless otherwise specified)
Note 1: 2 Tone/2 Laser test. Modulation index=70%/ch. Total average optical power=0dBm. Frequency=244MHz and 250MHz.
Note 2: Recommended VR=10V when Pin>0dBm or f>1GHz.
Note 3: All optical parameters are measured including the optical connector.
Note 4: Lead length (Air gap between stem base and PCB) < 2mm.
Limits
Max.
Min.
Edition 1.1
July 2004
1
FID3S2KX
Analog PIN
Photodiode
2
FID3S2KX
Fig. 1 Responsivity vs. Wavelength
Wavelength,
(nm)
Responsivity (A/w)
1.1
1.2
0.5
0.6
0.7
0.9
1.0
85
C
25
C
-40
C
0.8
1500 1540 1580 1620
1460
1420
1380
1340
1300
Pin = 0.2mW
VR = 5V
Fig. 2 Dark Current vs. Reverse Voltage
7
8
9
5
6
3
2
4
10
0
1
Reverse Voltage, VR (V)
Fig. 3 Capacitance vs. Reverse Voltage
Fig. 4 Frequency Response
Capacitance, Ct (pF)
Response (dB)
1.0
0.1
10
-3
3
6
-15
-12
-9
-6
0
0
1
2
3
4
5
6
Frequency (GHz)
Ta=25C,
f=1 MHz
Ta = 25C,
VR = 10V,
RL = 50,
= 1550nm,
Pin=-10dBm
Dark Current, I
D
(A)
10
20
0
10-12
10-13
10-10
10-9
10-8
10-11
Reverse Voltage, VR (V)
Ta = 25C
Ta = -40C
Ta = 85C
Air Gap=<1mm
(Surplus Lead Cut)
Air Gap=<1mm
Air Gap=3mm
Analog PIN
Photodiode
3
FID3S2KX
Analog PIN
Photodiode
Fig. 5 2nd Order Intermodulation
Distortion Characteristics
m=70%,
VR=5V,
f1=244MHz,
f2=250MHz
m=25%,
VR=10V,
f1=3000MHz,
f2=3006MHz
Optical Input Power (dBm)
2nd Order Intermodulation
Distortion (dBc)
2
1
0
3
4
5
90
85
80
75
70
65
60
4
FID3S2KX
Analog PIN
Photodiode
1
2
3
ANODE
CATHODE
CASE
4
2 - R 1.25
2 - C1.5
2.0
3.7
7.4
2
3
1
1000 MIN.
28 MAX.
17.0
2.54
17.0
6.0 MAX.
0.9
3-
0.35
12.7
7.4
10 MIN.
UNIT: mm
"KX" PACKAGE
Eudyna Devices Inc. products contain gallium arsenide
(GaAs) which can be hazardous to the human body and the environment.
For safety, observe the following procedures:
CAUTION
Do not put this product into the mouth.
Do not alter the form of this product into a gas, powder, or liquid
through burning, crushing, or chemical processing as these by-products
are dangerous to the human body if inhaled, ingested, or swallowed.
Observe government laws and company regulations when discarding this
product. This product must be discarded in accordance with methods
specified by applicable hazardous waste procedures.
For further information please contact:
Eudyna Devices USA Inc.
2355 Zanker Rd.
San Jose, CA 95131-1138, U.S.A.
TEL: (408) 232-9500
FAX: (408) 428-9111
www.us.eudyna.com
Eudyna Devices Europe Ltd.
Network House
Norreys Drive
Maidenhead, Berkshire SL6 4FJ
United Kingdom
TEL: +44 (0) 1628 504800
FAX: +44 (0) 1628 504888
Eudyna Devices Asia Pte Ltd.
Hong Kong Branch
Rm. 1101, Ocean Centre, 5 Canton Rd.
Tsim Sha Tsui, Kowloon, Hong Kong
TEL: +852-2377-0227
FAX: +852-2377-3921
Eudyna Devices Inc.
Sales Division
1, Kanai-cho, Sakae-ku
Yokohama, 244-0845, Japan
TEL: +81-45-853-8156
FAX: +81-45-853-8170
Eudyna Devices Inc. reserves the right to change products and specifications
without notice. The information does not convey any license under rights of
Eudyna Devices Inc. or others.
2004 Eudyna Devices USA Inc.
Printed in U.S.A.
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