DATA SHEET
PHOTO DIODE
NDL5481P Series
1 300 nm OPTICAL ANALOG CATV SYSTEM
φ
80
µ
m InGaAs PIN PHOTO DIODE MODULE WITH SMF
DESCRIPTION
NDL5481P Series is InGaAs PIN photo diode modules with singlemode fiber. They are designed for analog
transmission systems like CATV applications, and feature low intermodulation distortion and 40 dB minimum of
optical return loss.
FEATURES
•
Low intermodulation distortion
Optical return loss
High quantum efficiency
Small dark current
IMD2 =
−75
dBc MAX.
IMD3 =
−90
dBc MAX.
45 dB
•
•
•
•
•
Small capacitance
Low operating voltage
Detecting area size
C
t
= 0.7 pF
V
R
= 10 V
•
•
•
φ
8 0
µ
m
η
= 81 % @
λ
= 1 300 nm
I
D
= 0.1 nA
Coaxial module with singlemode fiber (SM-9/125)
NDL5481P1 and NDL5481P2 have a flange.
PACKAGE DIMENSIONS
in millimeters
•
NDL5481P2
Optical Fiber:
SM-9/125
Length: 1 m MIN.
NDL5481P
Optical Fiber:
SM-9/125
Length: 1 m MIN.
Shrunk tube
NDL5481P1
Optical Fiber:
SM-9/125
Length: 1 m MIN.
Shrunk tube
Shrunk tube
30.0 MAX.
φ
6.0
+0.0
–0.1
12.5 MIN. 4.0±0.1
6.9±0.3
6.9±0.3
12.5 MIN.
3.9±0.5
φ
6.0
+0.0
–0.1
φ
6.0
+0.0
–0.1
φ
0.45
2–
φ
2.2
2.5±0.1
0.5±0.1
2–
φ
2.5
2
3
1
φ
2.0
12.5 MIN.
30.0 MAX.
12.0±0.1
16.0±0.2
φ
2.5
30.0 MAX.
φ
2.5
14.0±0.1
φ
2.5
φ
2.0
φ
2.0
18.0±0.1
LEAD CONNECTION
1 Anode (Negative)
2 Cathode (Positive)
3 Case
3
2
1
The information in this document is subject to change without notice.
Document No. P10311EJ3V0DS00 (3rd edition)
Date Published March 1996 P
Printed in Japan
The mark
•
shows major revised points.
4.0±0.3
2
1
3.0±0.3
7.0±0.3
1.5
6.0
+0.0
–0.1
3
2
3
1
©
7.0±0.15
1994
NDL5481P Series
•
ORDERING INFORMATION
Part Number
NDL5481P
NDL5481PC
NDL5481PD
NDL5481P1
NDL5481P1C
NDL5481P1D
NDL5481P2
NDL5481P2C
NDL5481P2D
Without Connector
With FC-UPC Connector
With SC-UPC Connector
Without Connector
With FC-UPC Connector
With SC-UPC Connector
Without Connector
With FC-UPC Connector
With SC-UPC Connector
vertical flange
flat mount flange
Available Connector
no flange
ABSOLUTE MAXIMUM RATINGS (T
C
= 25
°
C)
Parameter
Reverse Voltage
Forward Current
Optical Input Power
Operating Case Temperature
Storage Temperature
Symbol
V
R
I
F
P
in
T
C
T
stg
Ratings
20
10
8
−40
to +85
−40
to +85
Unit
V
mA
mW
°C
°C
ELECTRO-OPTICAL CHARACTERISTICS (T
C
= 25
°
C)
Parameter
Dark Current
Terminal Capacitance
Quantum Efficiency
Responsivity
Cut-off Frequency
Symbol
I
D
C
t
V
R
= 10 V
V
R
= 10 V, f = 1.0 MHz
λ
= 1 300 nm
λ
= 1 300 nm
V
R
= 10 V,
λ
= 1 300 nm,
R
L
= 50
Ω
λ
= 1 300 nm
λ
= 1 300 nm, 2 Laser 2 Tone Test,
V
R
= 10 V, OMI = 50 %/LD,
P
in
= 0.5 mW, f
1
= 187.25 MHz,
f
2
= 193.25 MHz
76
0.8
2.5
Conditions
MIN.
TYP.
0.1
0.7
81
0.85
MAX.
1.0
1.0
Unit
nA
pF
%
A/W
GHz
η
S
f
C
Optical Return Loss
Intermodulation
Distortion
2 order
ORL
IMD2
40
45
−75
−90
dB
dBc
3 order
IMD3
dBc
2
NDL5481P Series
TYPICAL CHARACTERISTICS
•
Responsivity (Relative Value)
∆
S/S (%)
100
Quantum Efficiency
η
(%)
WAVELENGTH DEPENDENCE
OF QUANTUM EFFICIENCY
10
TEMPERATURE DEPENDENCE
OF RESPONSIVITY
λ
= 1 300 nm
80
60
40
20
0
0.9
0
–10
–60
1.0
1.1
1.2 1.3 1.4 1.5
Wavelength
λ
(
µ
m)
1.6
1.7
40
60
80
–40 –20
0
20
Operating Case Temperature T
C
(˚C)
100
REVERSE VOLTAGE DEPENDENCE
OF DARK CURRENT
10
Dark Current I
D
(nA)
10
1
TEMPERATURE DEPENDENCE
OF DARK CURRENT
V
R
= 10 V
10
0
10
–1
1.0
T
C
= 75 ˚C
50 ˚C
Dark Current I
D
(nA)
10
–2
10
–3
–60
–40 –20
0
60
80
20 40
Operating Case Temperature T
C
(˚C)
100
0.1
25 ˚C
0 ˚C
Terminal Capacitance Ct (pF)
5
REVERSE VOLTAGE DEPENDENCE
OF TERMINAL CAPACITANCE
f = 1.0 MHz
0.01
–25 ˚C
1
0.001
0
10
Reverse Voltage V
R
(V)
20
0.5
0.01
0.1
1
10
Reverse Voltage V
R
(V)
100
3
NDL5481P Series
FREQUENCY RESPONSE
V
R
= 10 V
λ
= 1 300 nm
R
L
= 50
Ω
IMD2 (dBc)
0
–20
–40
–60
–80
–100
40
MODULATION INDEX vs. IMD2
2 LD, 2 Tone Test
f = 187.25 MHz, 193.25 MHz
V
R
= 10 V,
λ
= 1 300 nm
P
in
+6 dBm
+3 dBm
0 dBm
–3 dBm
50
60
80
70
Modulation Index (%)
90
100
Response (3dB/div.)
0
2.5
Frequency f (GHz)
5.0
OPTICAL INPUT POWER vs. IMD2
0
–20
IMD2 (dBc)
–40
–60
–80
–100
–4
2 LD, 2 Tone Test
f = 187.25 MHz, 193.25 MHz
V
R
= 10 V,
λ
= 1 300 nm
OMI
90%
70%
50%
–2
0
4
6
2
Optical Input Power P
in
(dBm)
8
4
NDL5481P Series
HANDLING PRECAUTION for PD/APD MODULE
The NEC PD/APD module has heat shrink tubing to protect the ferrule edge (*1) and the junction between the
ferrule and the module body (*2). In order to avoid breaking the fiber and/or optical coupling degradation, NEC
recommends the following handling precautions.
1. Do not make the fiber bend radius less than 30 mm (*3).
2. Do not bend the fiber within the 18 mm section from the module body (*4).
3. Do not stress the ferrule with a lateral force exceeding 500 g (*5).
•
30
fiber
m
m
m
in
(*3
)
(*1)
ferrule (*5)
(*2)
module body
18 mm min (*4)
5
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