NR8500CR-CB-AZ datasheet(1/5 Pages) CEL

Part #	NR8500CR-CB-AZ

Description	NECs 050 um InGaAs APD IN COAXIAL PACKAGE FOR 155 Mb/s AND 622 Mb/s APPLICATIONS

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Manufacturer	CEL [California Eastern Labs]

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NR8500 Series

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 = 1.5 GHz at M = 10

• COAXIAL MODULE WITH SMF or GI-50 FIBER

• WITH SC CONNECTOR: Standard

FC CONNECTOR: Option

NEC's NR8500 series is an InGaAs avalanche photo diode

(APD) coaxial module with optical fiber pigtail. This module is

designed for long wavelength optical communication systems

and is ideal as a reciever for Synchronous Digital Hierarchy

(SDH) system, STM-4 and STM-1, ITU-T recommendations.

DESCRIPTION

PART NUMBER

NR8500 Series

SYMBOLS

PARAMETERS AND CONDITIONS

UNITS

MIN

TYP

MAX

VBR

Reverse Breakdown Voltage, ID =100 µA

V

50

70

90

δ

1

Temperature Coefficient of Reverse Breakdown Voltage

%/ºC

0.2

ID

Dark Current, VR = VBR x 0.9

nA

7

30

IDM

Multiplied Dark Current, M = 2 to 10

nA

1

5

Ct

Terminal Capacitance, VR = V(BR)R x 0.9, f = 1 MHz

pF

0.5

0.75

fC

Cut-off Frequency, M = 10

GHz

1.0

1.5

M = 20

1.2

S

Sensitivity,

λ = 1310 nm

A/W

0.8

0.94

λ = 1550 nm

0.81

0.96

M

Multiplication Factor, λ = 1310 nm, IPO = 1.0 µA30

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

dB

30

GI-50 Fiber

28

Note:

2. F = MX

ELECTRO-OPTICAL CHARACTERISTICS (TC = 25°C, Unless otherwise specified)

California Eastern Laboratories

VBR (25°C+∆T°C)-VBR (25°C)

∆T°C • VBR (25°C)

1. δ =

NEC's φ

φφ

φ

φ50 µ

µ

µm

InGaAs APD IN COAXIAL PACKAGE

FOR 155 Mb/s AND 622 Mb/s APPLICATIONS

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