Data Sheet
January 2000
NetLight
™
1417G4A and 1417H4A
ATM/SONET/SDH Transceivers
s
s
Transmitter disable input
Wide dynamic range receiver with InGaAs PIN
photodetector
Signal-detect output
Low power dissipation
Raised ECL (PECL) logic data interfaces
Operating case temperature range: –40
°
C to
+85
°
C
Lucent Reliability and Qualification Program for
built-in quality and reliability
s
s
s
s
s
Description
The 1417G4A and 1417H4A transceivers are high-
speed, cost-effective optical transceivers that are
compliant with the International Telecommunication
Union Telecommunication (ITU-T) G.957 specifica-
tions for use in ATM, SONET, and SDH applications.
The 1417G4A operates at the OC-3/STM-1 rate of
155 Mbits/s, and the 1417H4A operates at the OC-
12/STM-4 rate of 622 Mbits/s. The transceivers fea-
ture Lucent’s high-reliability optics and are 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 con-
form to a multisource transceiver agreement.
The transmitter features differential PECL logic level
data inputs and a TTL logic level disable input. The
receiver features differential PECL logic level data
and a PECL logic level signal-detect output for the
1417G4A, and a TTL logic level signal-detect output
for the 1417H4A.
Available in a small form factor, RJ-45 size, plastic package,
the 1417G4A and 1417H4A are high-performance, cost-effec-
tive transceivers for ATM/SONET/SDH applications at
155 Mbits/s and 622 Mbits/s.
Features
s
ATM/SONET/SDH Compliant (ITU-T G.957 Speci-
fications):
— IR-1/S1.1, S4.1
Small form factor, RJ-45 size, multisourced 10-pin
package
Requires single 3.3 V power supply
LC duplex receptacle
Uncooled 1300 nm laser transmitter with automatic
output power control
s
s
s
s
NetLight
1417G4A and 1417H4A
ATM/SONET/SDH Transceivers
Data Sheet
January 2000
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.
Parameter
Supply Voltage
Operating Case Temperature Range
Storage Case Temperature Range
Lead Soldering Temperature/Time
Operating Wavelength Range
Symbol
V
CC
T
C
T
stg
—
λ
Min
0
–40
–40
—
1.1
Max
3.6
85
85
250/10
1.6
Unit
V
°
C
°
C
°
C/s
µ
m
Pin Information
TX
10 9 8 7 6
10-PIN MODULE - TOP VIEW
RX
1 2 3 4 5
1-967.a
Figure 1. 1417G4A and 1714H4A Transceivers, 10-Pin Configuration, Top View
Table 1. Transceiver Pin Descriptions
Pin
Number
MS
Symbol
Name/Description
Receiver
Mounting Studs.
The mounting studs are provided for transceiver
mechanical attachment to the circuit board. They may also provide an
optional connection of the transceiver to the equipment chassis
ground.
Receiver Signal Ground.
Receiver Power Supply.
Signal Detect.
Normal operation: logic one output.
Fault condition: logic zero output.
Received
DATA
Out.
Received DATA Out.
Transmitter
Transmitter Power Supply.
Transmitter Signal Ground.
Transmitter Disable.
Transmitter DATA In
.
Transmitter
DATA
In
.
Logic Family
MS
NA
1
2
3
V
EER
V
CCR
SD
4
5
6
7
8
9
10
RD–
RD+
V
CCT
V
EET
T
DIS
TD+
TD–
NA
NA
LVTTL
(1417H4A);
LVPECL
(1417G4A)
LVPECL
LVPECL
NA
NA
LVTTL
LVPECL
LVPECL
2
Lucent Technologies Inc.
Data Sheet
January 2000
NetLight
1417G4A and 1417H4A
ATM/SONET/SDH Transceivers
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.
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.
Lucent 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
Ω
, capacitance = 100 pF) is widely
used and, therefore, can be used for comparison pur-
poses. The HBM ESD threshold established for the
1417G4A and 1417H4A transceivers is
±1000
V.
Data and Signal Detect Outputs
The data and signal detect outputs of the 1417 trans-
ceiver are driven by open-emitter NPN transistors,
which have an output impedance of approximately 7
Ω
.
Each output can provide approximately 50 mA maxi-
mum current to a 50
Ω
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 ECL (PECL) logic
for the 1417G4A and TTL for the 1417H4A. 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 indicator,
since its switching threshold is determined only by the
magnitude of the incoming optical signal.
Application Information
The 1417 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 applica-
tion boards, the 1417 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.
*
EIA
is a registered trademark of Electronic Industries Association.
Lucent Technologies Inc.
3
NetLight
1417G4A and 1417H4A
ATM/SONET/SDH Transceivers
Data Sheet
January 2000
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
Table 2. Transmitter Optical and Electrical Characteristics
(T
C
= –40
°
C to +85
°
C; V
CC
= 3.135 V—3.465 V)
Parameter
Average Optical Output Power (EOL)
Optical Wavelength:
STM-1 (4 nm spectral width, maximum)
STM-4 (2.5 nm spectral width, maximum)
Dynamic Extinction Ratio
Power Supply Current
Input Data Voltage:
Low
High
Transmit Disable Voltage
Transmit Enable Voltage
Symbol
P
O
λ
C
1261
1274
8.2
—
V
CC
– 2.0
V
CC
– 1.2
V
CC
– 1.3
V
EE
—
—
19
90
—
—
—
—
1360
1356
—
150
V
CC
– 1.6
V
CC
– 0.8
V
CC
V
EE
+ 0.8
nm
nm
dB
mA
V
V
V
V
Min
–15.0
Typ
–11.0
Max
–8.0
Unit
dBm
EXT
I
CCT
V
IL
V
IH
V
D
V
EN
Table 3. Receiver Optical and Electrical Characteristics
(T
C
= –40
°
C to +85
°
C; V
CC
= 3.135 V—3.465 V)
Parameter
Average Sensitivity (STM-1/STM-4)*
Maximum Input Power*
Signal-detect Switching Threshold:
Decreasing Light (STM-1/STM-4)
Increasing Light (STM-1/STM-4)
Link Status Hysteresis
Power Supply Current
Output Data Voltage:
Low
High
Signal-detect Output Voltage (1417G4A):
Low
High
Signal-detect Output Voltage (1417H4A):
Low
High
* For 1 x 10
–10
BER with an optical input using 2
23
– 1 PRBS.
Symbol
P
I
P
MAX
LST
D
LST
I
HYS
I
CCR
V
OL
V
OH
V
OL
V
OH
V
OL
V
OH
Min
—
–8
–45
–45
0.5
—
V
CC
– 1.81
V
CC
– 1.025
—
V
CC
– 1.2
0.0
2.4
Typ
–35/–31.5
–4/–5
–39/–37
–37/–35
2
70
—
—
—
—
—
—
Max
–28
—
–29.0
–28.5
—
100
V
CC
– 1.62
V
CC
– 0.88
V
CC
– 1.7
—
0.8
V
CC
Unit
dBm
dBm
dBm
dBm
dB
mA
V
V
V
V
V
V
4
Lucent Technologies Inc.
Data Sheet
January 2000
NetLight
1417G4A and 1417H4A
ATM/SONET/SDH Transceivers
Qualification and Reliability
To help ensure high product reliability and customer satisfaction, Lucent is committed to an intensive quality pro-
gram that starts in the design phase and proceeds through the manufacturing process. Optoelectronic modules are
qualified to Lucent’s internal standards using MIL-STD-883 test methods and procedures and using sampling tech-
niques consistent with
Telcordia Technologies
* requirements. The 1417 transceiver is required to pass an exten-
sive and rigorous set of qualification tests.
This qualification program fully meets the intent of
Telcordia Technologies
reliability practices TR-NWT-000468 and
TA-TSY-000983 requirements.
In addition, the design, development, and manufacturing facilities of Lucent Technologies Microelectronics Group
Optoelectronics unit have been certified to be in full compliance with the latest
ISO
†
9001 quality system stan-
dards.
*
Telcordia Technologies
is a registered trademark of Bell Communications Research, Inc.
†
ISO
is a registered trademark of The International Organization for Standardization.
Electrical Schematic
V
EET
TD–
TRANSMITTER
DRIVER
TD+
7
10
9
V
CCT
SFF TRANSCEIVER
V
CCR
6
C4
2
L2
V
CC
C5
L1
C1
L1 = L2 = 1
µH—4.7 µH*
C1 = C2 = 10 nF
†
C3 = 4.7
µF—10 µF
C4 = C5 = 4.7
µF—10 µF
C2
RD+
PREAMP
RECEIVER
POST
AMPLIFIER
RD–
5
4
C3
V
CC
130
Ω
SD
V
EER
3
‡
1
82
Ω
1-968 (F).a
* Ferrite beads can be used as an option.
† For all capacitors, MLC caps are recommended.
‡ Termination resistors for 1417G4A only.
Figure 2. Power Supply Filtering for the Small Form Factor Transceiver
Lucent Technologies Inc.
5
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