NEC's 1310 nm
InGaAsP MQW DFB TOSA
FOR SHORT HAUL 2.5 Gb/s APPLICATION
NX8312UD
FEATURES
INTERNAL OPTICAL ISOLATOR
OPTICAL OUTPUT POWER:
Pf = 1.0 mW
LOW THRESHOLD CURRENT
Ith = 10 mA TYP @ T
C
= 25C
WIDE OPERATING TEMPERATURE RANGE:
T
C
= -20 to +85C
InGaAs MONITOR PIN-PD
SMALL PACKAGE
3.8 mm TOSA (Total length 13.0 mm MAX)
DESCRIPTION
NEC's NX8312UD is a 1 310 nm Multiple Quantum Well
(MQW) structured Distributed Feed-Back (DFB) laser diode
TOSA (transmitter optical sub-assembly) with InGaAs
monitor PIN-PD in a receptacle type package designed for
SFF/SFP transceiver with LC duplex receptacle.
California Eastern Laboratories
APPLICATIONS
STM-16 (S-16.1)
SONET OC-48 (IR)
2-4
NX8312UD
ELECTRICAL CHARACTERISTICS
(T
A
= -20 to +85C, unless otherwise specified)
*1 Tracking Error:
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Operating Voltage
V
op
CW, P
f
= 1.0 mW
1.2
1.6
V
Threshold Current
I
th
CW
2
50
mA
CW, T
C
= 25C
4
10
20
Optical Output Power from Fiber
P
f
CW
1.0
mW
Modulation Current
I
mod
CW, P
f
= 1.0 mW
7
50
mA
CW, P
f
= 1.0 mW, T
C
= 25C
9
20
30
Differential Efficiency
d
CW
0.02
0.15
W/A
CW, T
C
= 25C
0.035
0.050
0.100
Peak Emission Wavelength
p
CW, P
f
= 1.0 mW, RMS (-20 dB)
1 280
1 335
nm
Side Mode Suppression Ratio
SMSR
CW, P
f
= 1.0 mW
30
dB
Rise Time
t
r
I
b
= I
th,
10-90%
200
ps
Fall Time
t
f
I
b
= I
th,
90-10%
200
ps
Monitor Current
I
m
CW, V
R
= 1.5 V, P
f
= 0.5 mW
100
2 000
A
Monitor Dark Current
I
D
V
R
= 1.5 V
500
nA
V
R
= 1.5 V, T
C
= 25C
50
Tracking Error
*1
CW, I
m
= const. (@ P
f
= 1.0 mW)
-
1.5
1.5
dB
Connector Repeatability
-
With master pigtail
-
1.0
1.0
dB
Optical Isolation
I
s
CW, P
f
= 1.0 mW
20
dB
0
I
m
I
m
T
C
= 25C
T
C
= -20 to +85C
P
f
(mW)
P
f
1.0
(mA)
= 10 log
[dB]
P
f
1.0
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably
be expected to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify CEL for all damages resulting from such improper use or sale.
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
11/23/2004
2-5
4590 Patrick Henry Drive
Santa Clara, CA 95054-1817
Telephone: (408) 919-2500
Facsimile: (408) 988-0279
Subject: Compliance with EU Directives
CEL certifies, to its knowledge, that semiconductor and laser products detailed below are compliant
with the requirements of European Union (EU) Directive 2002/95/EC Restriction on Use of Hazardous
Substances in electrical and electronic equipment (RoHS) and the requirements of EU Directive
2003/11/EC Restriction on Penta and Octa BDE.
CEL Pb-free products have the same base part number with a suffix added. The suffix A indicates
that the device is Pb-free. The AZ suffix is used to designate devices containing Pb which are
exempted from the requirement of RoHS directive (*). In all cases the devices have Pb-free terminals.
All devices with these suffixes meet the requirements of the RoHS directive.
This status is based on CEL's understanding of the EU Directives and knowledge of the materials that
go into its products as of the date of disclosure of this information.
Restricted Substance
per RoHS
Concentration Limit per RoHS
(values are not yet fixed)
Concentration contained
in CEL devices
-A
-AZ
Lead (Pb)
< 1000 PPM
Not Detected
(*)
Mercury
< 1000 PPM
Not Detected
Cadmium
< 100 PPM
Not Detected
Hexavalent Chromium
< 1000 PPM
Not Detected
PBB
< 1000 PPM
Not Detected
PBDE
< 1000 PPM
Not Detected
If you should have any additional questions regarding our devices and compliance to environmental
standards, please do not hesitate to contact your local representative.
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content of its products represents knowledge and belief as of the date that it is provided. CEL bases its knowledge and belief on information
provided by third parties and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better
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suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for
release.
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See CEL Terms and Conditions for additional clarification of warranties and liability.
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