NetLight
2417J4A 1300 nm Laser
Gigabit Transceiver
Data Sheet, Rev. 1
August 2001
Available in a small form-factor, RJ-45 size, plastic package,
the 2417J4A Transceiver is a high-performance, cost-
effective optical transceiver for Gigabit Ethernet 1000Base-LX
applications.
Features
s
Gigabit Ethernet 1000Base-LX compliant
s
Small form factor (SFF), RJ-45 size, multisourced
10-pin package
s
LC duplex receptacle
s
Uncooled 1300 nm laser transmitter with automatic
output power control
s
Transmitter disable input
s
Wide dynamic range receiver with InGaAs PIN
photodetector
s
TTL signal-detect output
s
Low power dissipation
s
Single 3.3 V power supply
s
Raised ECL (LVPECL) logic data interfaces
s
Operating temperature range: 0
C to
70
C
s
Agere Systems Inc. Reliability and Qualification
Program for built-in quality and reliability
Description
The 2417J4A transceiver is a high-speed, cost-effec-
tive optical transceiver that is compliant with the
IEEE
802.3z Gigabit Ethernet Physical Medium
Dependent (PMD) 1000Base-LX specifications using
a long-wavelength laser. The transceiver features the
latest generation of Agere Systems optics and is
packaged in a narrow-width plastic housing with an
LC duplex receptacle. This receptacle fits into an
RJ-45 form-factor outline. The 10-pin package and
pinout conform to a multisource transceiver agree-
ment.
The transmitter features differential LVPECL logic
level data inputs and an LVTTL logic level disable
input. The receiver features differential LVPECL logic
level data outputs and an LVTTL logic level signal-
detect output.
NetLight
2417J4A 1300 nm Laser
Data Sheet, Rev. 1
Gigabit Transceiver
August 2001
2
Agere Systems Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Pin Information
Figure 1. 2417J4A Transceiver, 10-Pin Configuration, Top View
Parameter
Symbol
Min
Max
Unit
Supply Voltage
V
CC
0
3.6
V
Operating Temperature Range
T
C
0
70
C
Storage Case Temperature Range
T
stg
40
85
C
Lead Soldering Temperature/Time
--
--
250/10
C/s
Operating Wavelength Range
1.1
1.6
m
Table 1. Transceiver Pin Descriptions
Pin
Number
Symbol
Name/Description
Logic
Family
Receiver
MS
MS
Mounting Studs. The mounting studs are provided for transceiver mechani-
cal attachment to the circuit board. They may also provide an optional con-
nection of the transceiver to the equipment chassis ground.
NA
1
V
EER
Receiver Signal Ground.
NA
2
V
CCR
Receiver Power Supply.
NA
3
SD
Signal Detect.
Normal operation: logic one output.
Fault condition: logic zero output.
LVTTL
4
RD
Received DATA Out.
LVPECL
5
RD+
Received DATA Out.
LVPECL
Transmitter
6
V
CCT
Transmitter Power Supply.
NA
7
V
EET
Transmitter Signal Ground.
NA
8
T
DIS
Transmitter Disable.
LVTTL
9
TD+
Transmitter DATA In. An internal termination is provided, consisting of a
100
resistor between the TD+ and TD pins.
LVPECL
10
TD
Transmitter DATA In. See TD+ pin for terminations.
LVPECL
RX
TX
1
2
3
4
5
10
9
8
7
6
1-1031 (F)
Agere Systems Inc.
3
Data Sheet, Rev. 1
NetLight
2417J4A 1300 nm Laser
August 2001
Gigabit Transceiver
Electrostatic Discharge
Caution: This device is susceptible to damage as
a result of electrostatic discharge (ESD).
Take proper precautions during both
handling and testing. Follow
EIA
Stan-
dard
EIA
-625.
Although protection circuitry is designed into the
device, take proper precautions to avoid exposure to
ESD.
Agere Systems employs a human-body model (HBM)
for ESD susceptibility testing and protection-design
evaluation. ESD voltage thresholds are dependent on
the critical parameters used to define the model. A
standard HBM (resistance = 1.5 k
, capacitance = 100
pF) is widely used and, therefore, can be used for com-
parison purposes. The HBM ESD threshold estab-
lished for the 2417J4A is
1500 V.
Application Information
The 2417 receiver section is a highly sensitive fiber-
optic receiver. Although the data outputs are digital
logic levels (PECL), the device should be thought of as
an analog component. When laying out system appli-
cation boards, the 2417 transceiver should receive the
same type of consideration one would give to a sensi-
tive analog component.
Printed-Wiring Board Layout Consider-
ations
A fiber-optic receiver employs a very high gain, wide
bandwidth transimpedance amplifier. This amplifier
detects and amplifies signals that are only tens of nA in
amplitude when the receiver is operating near its sensi-
tivity limit. Any unwanted signal currents that couple
into the receiver circuitry cause a decrease in the
receiver's sensitivity and can also degrade the perfor-
mance of the receiver's signal detect (SD) circuit. To
minimize the coupling of unwanted noise into the
receiver, careful attention must be given to the printed-
wiring board layout.
At a minimum, a double-sided printed-wiring board
(PWB) with a large component-side ground plane
beneath the transceiver must be used. In applications
that include many other high-speed devices, a multi-
layer PWB is highly recommended. This permits the
placement of power and ground on separate layers,
which allows them to be isolated from the signal lines.
Multilayer construction also permits the routing of sen-
sitive signal traces away from high-level, high-speed
signal lines. To minimize the possibility of coupling
noise into the receiver section, high-level, high-speed
signals such as transmitter inputs and clock lines
should be routed as far away as possible from the
receiver pins.
Noise that couples into the receiver through the power
supply pins can also degrade performance. It is
recommended that the pi filter, shown in Figure 2, be
used for both the transmitter and receiver power
supplies.
Data and Signal Detect Outputs
The data and signal detect outputs of the 2417 trans-
ceiver are driven by open-emitter NPN transistors,
which have an output impedance of approximately 7
.
Each output can provide approximately 50 mA maxi-
mum current to a 50
. load terminated to V
CC
2.0 V.
Due to the high switching speeds of ECL outputs,
transmission line design must be used to interconnect
components. To ensure optimum signal fidelity, both
data outputs (RD+/RD) should be terminated identi-
cally. The signal lines connecting the data outputs to
the next device should be equal in length and have
matched impedances. Controlled impedance stripline
or microstrip construction must be used to preserve the
quality of the signal into the next component and to
minimize reflections back into the receiver, which could
degrade its performance. Excessive ringing due to
reflections caused by improperly terminated signal
lines makes it difficult for the component receiving
these signals to decipher the proper logic levels and
can cause transitions to occur where none were
intended. Also, by minimizing high-frequency ringing,
possible EMI problems can be avoided.
The signal-detect output is positive LVTTL logic. A logic
low at this output indicates that the optical signal into
the receiver has been interrupted or that the light level
has fallen below the minimum signal detect threshold.
This output should not be used as an error rate indica-
tor since its switching threshold is determined only by
the magnitude of the incoming optical signal.
NetLight
2417J4A 1300 nm Laser
Data Sheet, Rev. 1
Gigabit Transceiver
August 2001
4
Agere Systems Inc.
Application Information
(continued)
Transceiver Processing
When the process plug is placed in the transceiver's optical port, the transceiver and plug can withstand normal
wave soldering and aqueous spray cleaning processes. However, the transceiver is not hermetic, and should not
be subjected to immersion in cleaning solvents. The transceiver case should not be exposed to temperatures in
excess of 125 C. The transceiver pins can be wave soldered at 250 C for up to 10 seconds. The process plug
should only be used once. After removing the process plug from the transceiver, it must not be used again as a pro-
cess plug; however, if it has not been contaminated, it can be reused as a dust cover.
Transceiver Optical and Electrical Characteristics
* For 1 x 10
10
BER with an optical input using 2
23
1 PRBS.
Table 2. Transmitter Optical and Electrical Characteristics (T
A
= 0
C to 70
C; V
CC
= 3.135 V--3.465 V)
Parameter
Symbol
Min
Max
Unit
Average Optical Output Power (EOL):
Single-mode Fiber (10
m)
P
O
11.0
3.0
dBm
Optical Wavelength
C
1270
1355
nm
Spectral Width
RMS
--
4
nm
Dynamic Extinction Ratio
EXT
9
--
dB
Rise/Fall Time,20%--80%
t
R
,t
F
--
260
ps
Output Optical Eye
Compliant with
IEEE
802.3Z
Eye Mask requirements
Power Supply Current
I
CCT
--
150
mA
Input Data Voltage:
Low
High
V
IL
V
IH
V
CC
2.0
V
CC
1.2
V
CC
1.6
V
CC
0.8
V
V
Transmit Disable Voltage
V
D
V
CC
1.3
V
CC
V
Transmit Enable Voltage
V
EN
V
EE
V
EE
+ 0.8
V
Table 3. Receiver Optical and Electrical Characteristics (T
A
= 0
C to 70
C; V
CC
= 3.135 V--3.465 V)
Parameter
Symbol
Min
Max
Unit
Average Sensitivity*
P
I
19
--
dBm
Maximum Input Power*
P
MAX
--
3
dBm
Return Loss
--
12
--
dB
Link Status Switching Threshold:
Decreasing Light
Increasing Light
LST
D
LST
I
--
--
20.5
20.0
dBm
dBm
Link Status Hysteresis
HYS
0.5
--
dB
Power Supply Current
I
CCR
--
100
mA
Output Data Voltage/Clock Voltage:
Low
High
V
OL
V
OH
V
CC
1.81
V
CC
1.025
V
CC
1.62
V
CC
0.88
V
V
Signal-detect Voltage:
Low
High
V
OL
V
OH
0.0
2.4
0.8
V
CC
V
V
Data Sheet, Rev. 1
NetLight
2417J4A 1300 nm Laser
August 2001
Gigabit Transceiver
Agere Systems Inc.
5
Qualification and Reliability
To help ensure high product reliability and customer satisfaction, Agere Systems is committed to an intensive qual-
ity program that starts in the design phase and proceeds through the manufacturing process. Optoelectronic mod-
ules are qualified to Agere Systems internal standards using MIL-STD-883 test methods and procedures and
using sampling techniques consistent with
Telcordia Technologies
requirements. The 2417 transceiver is required
to pass an extensive and rigorous set of qualification tests.
In addition, the design, development, and manufacturing facilities ofthe Agere Systems Optoelectronics unit have
been certified to be in full compliance with the latest
ISO
9001 quality system standards.
Electrical Schematic
*
Ferrite beads can be used as an option.
For all capacitors, MLC caps are recommended.
Figure 2. Power Supply Filtering for the Small Form Factor Transceiver
L1 = L2 = 1
H--4.7
H*
C1 = C2 = 10 nF
C3 = 4.7
F--10
F
C4 = C5 = 4.7
F--10
F
TRANSMITTER
DRIVER
RECEIVER
POST-
AMPLIFIER
TD
TD+
100
R
V
EET
7
10
9
PR
EAMP
RD+
RD
SD
V
EER
V
CCT
V
CCR
SFF TRANSCEIVER
5
4
3
1
6
2
C4
C5
C2
C3
C1
V
CC
L2
L1
1-968 (F).a
NetLight
2417J4A 1300 nm Laser
Data Sheet, Rev. 1
Gigabit Transceiver
August 2001
6
Agere Systems Inc.
Application Schematics
Figure 3. 3.3 V Transceiver Interface with 3.3 V ICs
TD+
TD
100
LVPECL
130
130
V
CC
(+3.3 V)
V
CC
(+3.3 V)
(A) TRANSMITTER INTERFACE (LVPECL TO LVPECL)
RD+
RD
LVPECL
V
CC
(+3.3 V)
V
CC
(+3.3 V)
100
130
130
(B) RECEIVER INTERFACE (LVPECL TO LVPECL)
Z = 50
Z = 50
Z = 50
Z = 50
1-1033 (F)
Data Sheet, Rev. 1
NetLight
2417J4A 1300 nm Laser
August 2001
Gigabit Transceiver
Agere Systems Inc.
7
Outline Diagrams
Dimensions are in inches and (millimeters).
Package Outline
0.150
0.125 (3.17)
1.914
0.535 MAX
0.386 MAX
0.700
0.734
0.280
0.014
0.246
0.070 (1.78)
(13.59)
(48.62)
(3.81)
(10.16)
0.400
(6.25)
(0.36)
(9.80)
(7.11)
(17.78)
(18.64)
0.018
(0.46)
1-1032 (F).b
NetLight
2417J4A 1300 nm Laser
Data Sheet, Rev. 1
Gigabit Transceiver
August 2001
8
Agere Systems Inc.
Outline Diagrams
(continued)
Printed-Wiring Board Layout
*
,
Dimensions are in inches and (millimeters).
* The hatched areas are keep-out areas reserved for housing standoffs. No metal traces of ground connection in keep-out area.
Twenty-pin module shown; 10-pin module requires only 16 PWB holes.
A
6.00
3.00
3.08
(0.121)
2.00 (0.79)
(0.236)
(0.118)
(2x)
2.29 MAX
(0.090)
(2x)
2.29 MAX
(0.090)
(2x)
1.4
0.1 NOTE 1
(0.055
0.004)
AREA FOR EYELETS
2.01
(0.79)
9.59
(0.378)
10.16
(0.400)
13.34
(0.525)
7.59
(0.299)
3.00
(0.118)
(4x)
1.4
0.1 NOTE 2
(0.055
0.004)
0.00 M A
0.00 M A
4.57
(0.180)
7.11
(0.280)
8.89
(0.350)
(9x) 1.78
(0.070)
16.00 REF
(0.630)
3.56
(0.140)
(2x)
0.81
0.1
(0.032
0.004)
0.00 M A
1. HOLES FOR MOUNTING STUDS MUST BE TIED TO CHASSIS GROUND.
2. HOLES FOR HOUSING LEADS MUST BE TIED TO SIGNAL GROUND.
NOTES:
1-1271(F)
Data Sheet, Rev. 1
NetLight
2417J4A 1300 nm Laser
August 2001
Gigabit Transceiver
Agere Systems Inc.
9
Outline Diagrams
(continued)
Recommended Panel Opening
Dimensions are in inches and (millimeters).
Laser Safety Information
Class I Laser Product
FDA/CDRH Class 1 laser product. All versions of the transceiver are Class I laser products per CDRH, 21 CFR
1040 Laser Safety requirements. All versions are Class I laser products per
IEC
60825-1:1993. The transceiver
has been certified with the FDA under accession number 9520668.
CAUTION: Use of controls, adjustments, and procedures other than those specified herein may result in
hazardous laser radiation exposure.
This product complies with 21 CFR 1040.10 and 1040.11.
Wavelength = 1.3
m
Maximum power = 1.0 mW
Because of size constraints, laser safety labeling is not affixed to the module but is attached to the outside of the
shipping carton.
Product is not shipped with power supply.
NOTICE
Unterminated optical receptacles may emit laser radiation.
Do not view with optical instruments.
1-1088(F).d
0.560
(14.22)
0.400
(10.16)
0.039 TO 0.098
(1.00 TO 2.49)
0.590 TO 0.620
(14.99 TO 15.75)
NetLight
2417J4A 1300 nm Laser
Data Sheet, Rev. 1t
Gigabit Transceiver August 2001
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
NetLight
is a registered trademark of Agere Systems Inc.
Copyright 2001 Agere Systems Inc.
All Rights Reserved
August 2001
DS00-105OPTO-1 (Replaces DS00-105OPTO)
For additional information, contact your Agere Systems Account Manager or the following:
INTERNET: http://www.agere.com
E-MAIL: docmaster@agere.com
N. AMERICA:
Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)
ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F, Tower 2, The Gateway, Harbour City, Kowloon
Tel. (852) 3129-2000, FAX (852) 3129-2020
CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen)
JAPAN: (81) 3-5421-1600 (Tokyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, TAIWAN: (886) 2-2725-5858 (Taipei)
EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045
Ordering Information
Description Device Code Comcode
2 x 5 Single-mode SFF LC Receptacle Transceiver for
1000Base-LX Applications
2417J4A 108282229
IEEE
is a registered trademark of The Institute of Electrical and Electronics Engineers, Inc.
EIA
is a registered trademark of The Electronic Industries Association.
Telcordia Technologies
is a registered trademark of Bell Communications Research, Inc.
ISO
is a registred trademark of The International Organization for Standardization.
IEC
is a registered trademark of The International Electrotechnical Commission.
PDF 
ZIP