NR8501 Datasheet, PDF (1/6 Pages) List of Unclassifed Manufacturers – NR8501

NEC's φ50 µm InGaAs APD
IN COAXIAL PACKAGE NR8501 Series
FOR 2.5Gb/s APPLICATIONS
FEATURES
• SMALL DARK CURRENT:
ID = 7 nA
• HIGH SENSITIVITY:
S = 0.94 A/W at λ = 1310 nm, M = 1
S = 0.96 A/W at λ = 1550 nm, M = 1
• HIGH SPEED RESPONSE:
fC = 2.5 GHz at M = 5
• COAXIAL MODULE WITH SINGLE MODE FIBER (SMF)
or GI-50 Fiber
• WITH SC CONNECTOR: Standard, FC connector: Option
(Refer to Ordering Information)
DESCRIPTION
NEC's NR8501 Series are InGaAs avalanche photo diode
(APD) coaxial modules with optical fiber pigtail. They are
designed for long wavelength 2.5 Gb/s optical communication
systems and are ideal as a reciever for Synchronous Digital
Hierarchy (SDH) system, STM-16 ITU-T recommendations.
ELECTRO-OPTICAL CHARACTERISTICS (TC = 25°C, Unless otherwise specified)
PART NUMBER
NR8501 Series
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
VBR
Reverse Breakdown Voltage, ID =100 µA
V
40
60
δ¹
Temperature Coefficient of Reverse Breakdown Voltage
%/ºC
0.20
ID
Dark Current, VR = VBR x 0.9
nA
7
IDM
Multiplied Dark Current, M = 2 to 10
nA
1
Ct
Terminal Capacitance, VR = V(BR)R x 0.9, f = 1 MHz
pF
0.5
fC
Cut-off Frequency, M = 5
M = 10
M = 30
GHz
2.5
3.0
2.5
3.0
1.0
1.2
S
Sensitivity,
λ = 1310 nm, M = 1
λ = 1550 nm, M = 1
A/W
0.80
0.94
0.81
0.96
M
Multiplication Factor, λ = 1310 nm, IPO = 1.0 µA
30
40
VR = V (@ID = 1 µA)
x
Excess Noise Factor², λ = 1310 nm, 1550 nm,
0.7
IPO =1.0 µA, M = 10, f = 35 MHz, B = 1 MHz
F
Excess Noise Factor², λ = 1310 nm, 1550 nm,
5
IPO =1.0 µA, M = 10, f = 35 MHz, B = 1 MHz
ORL
Optical Return Loss
SMF
GI-50 Fiber
dB
30
28
Notes:
1. δ = ^{VBR(25°C+∆T°C)-VBR(25°C)}
∆T°C • VBR(25°C)
2. F = M^X
MAX
80
30
5
0.75
California Eastern Laboratories