Fiber Optics
MARCH 2000
V23806-A84-C3
Single Mode 155 MBd ATM/SDH/SONET 1x9 Transceiver
Extended Temperature Range (40C to 85C)
FEATURES
Compliant with ATM, SONET OC-3, SDH STM-1
Compact integrated transceiver unit with
MQW laser diode transmitter
InGaAs PIN photodiode receiver
Duplex SC receptacle
Class 1 FDA and IEC laser safety compliant
FDA Accession No. 9520890
Single power supply (5 V)
Signal detect indicator
PECL differential inputs and outputs
Process plug included
Wave solderable and washable with process
plug inserted
Isolated studs
Industry standard multisource 1x9 footprint
For distances of up to 15 km on single mode fiber
Absolute Maximum Ratings
Exceeding any one of these values may destroy the device
immediately.
Package Power Dissipation
(1)
............................................ 1.5 W
Supply Voltage (V
CC
V
EE
) ...................................................... 6 V
Data Input Levels........................................................V
CC
+0.5 V
Differential Data Input Voltage ............................................ 2.5 V
Operating Ambient Temperature ......................... 40 C to 85C
Storage Ambient Temperature ............................ 40 C to 85C
Soldering Conditions, Temp/Time
(MIL-STD 883C, Method 2003) ............................. 250 C/5.5s
Note
1. For V
CC
V
EE
(min., max.). 50% duty cycle. The supply current does
not include the load drive current of the receiver output. Add max.
45 mA for the three outputs. Load is 50
to V
CC
2 V.
(1.5
0.1
)
.06
.004
(7.42
--0.15
)
.292
--.006
(0.75
0.1
)
.030
.004
6.375
.251
Optical
Centerline
PC board
(11.5 max)
.453 max.
(
4
0.2
) .158
.008
(2) .080
12.7
.500
(20
--1
)
.787
--.040
(0.73
0.1)
.028
.004
(0.5) typ.
.020 typ.
(25.4
0.1
)
1
.004
8x 2.54=20.32
8x .100 =.800
123456789
20.32
.800
(15.88
0.5
)
.625
.020
(38.62
0.1
)
1.52
.004
(12.6
0.3
)
.496
.012
0.1
M
.004
M
0.3
M
.012
M
A
A
0.3
M
.012
M
A
A
11x
2x
(1.4
--0.05
)
.055
--.002
qqqqqqqqq
Z
9x
DUPLEX
SC
RECEPTACLE
View Z
(Lead cross section
and standoff size)
(0.25) typ.
.010 typ.
Rx
Tx
(9.6
+0.1
)
.378
+.004
qqqqqqqqq
8x 2.54=20.32
8x .100 =.800
20.32
.800
(2.54)
.100
9x (0.8) min.
.032 min.
0.1
M
.004
M
11x
(1.9
0.1)
.075
.004
2x
PC board thickness
(2.54)
.100
Top View
A
Dimensions in (mm) inches
V23806-A84-C3
Fiber Optics
V23806-A84-C3, Single Mode 155 MBd ATM/SDH/SONET 1x9 Trx, Ext. Temp. Range
2
DESCRIPTION
The Infineon single mode ATM transceiver complies with the
ATM Forum's Network Compatible ATM for Local Network
Applications document and ANSI's Broadband ISDN -
Customer Installation Interfaces, Physical Media Dependent
Specification, T1.646-1995, Bellcore-SONET OC-3/IR-1 and
ITU-T G.957 STM-1/S.1.1.
ATM was developed to facilitate solutions in multimedia appli-
cations and real time transmission. The data rate is scalable,
and the ATM protocol is the basis of the broadband public net-
works being standardized in the International Telecommunica-
tions Union (ITU), the former International Telegraph and
Telephone Consultative Committee (CCITT). ATM can also be
used in local private applications.
This Infineon single mode ATM transceiver is a single unit com-
prised of a transmitter, a receiver, and an SC receptacle. This
design frees the customer from many alignment and PC board
layout concerns. The module is designed for low cost WAN
applications. It can be used as the network end device interface
in workstations, servers, and storage devices, and in a broad
range of network devices such as bridges, routers, and intelli-
gent hubs, and wide area ATM switches.
This transceiver operates at 155.52 Mbit/s from a single power
supply (+5 V). The differential data inputs, data outputs and sig-
nal detect output are PECL compatible.
Functional Description
This transceiver is designed to transmit serial data via single
mode cable.
Functional Diagram
The receiver component converts the optical serial data into
PECL compatible electrical data (RD and RDnot). The Signal
Detect (SD, active high) shows whether optical data is
present
(1)
.
The transmitter converts electrical PECL compatible serial data
(TD and TDnot) into optical serial data. It contains a laser driver
circuit that drives the modulation and bias current of the laser
diode. The currents are controlled by a power control circuit to
guarantee constant output power of the laser over temperature
and aging.
The power control uses the output of the monitor PIN diode
(mechanically built into the laser coupling unit) as a controlling
signal, to prevent the laser power from exceeding the operating
limits.
This module is a Class 1 laser product, due to an integrated
automatic shutdown circuit that disables the laser when it
detects transmitter failures.
The transceiver contains a supervisory circuit to monitor the
power supply. This circuit makes an internal reset signal when-
ever the supply voltage drops below the reset threshold. It
keeps the reset signal active for at least 140 milliseconds after
the voltage has risen above the reset threshold. During this
time the laser is inactive.
Note
1. We recommend to switch off the transmitter supply (V
CC
-Tx) if no
transmitter input data is applied.
Automatic
Shut-Down
Laser
Driver
Power
Control
Receiver
o/e
o/e
Laser
e/o
RX Coupling Unit
TD
TD
RD
RD
SD
Laser Coupling Unit
Single Mode Fiber
LEN
Monitor
Fiber Optics
V23806-A84-C3, Single Mode 155 MBd ATM/SDH/SONET 1x9 Trx, Ext. Temp. Range
3
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recommended Operating Conditions
Note
1. For
V
CC
V
EE
(min., max.). 50% duty cycle. The supply current does
not include the load drive current of the receiver output. Add max.
45 mA for the three outputs. Load is 50
to V
CC
2 V.
Transmitter Electro-Optical Characteristics
Notes
1. Laser power is shut down if power supply is below VTH and
switched on if power supply is above V
TH
after t
RES
.
2. Transmitter meets ANSI T1E1.2, SONET OC-3, and ITU-T G.957
mask patterns.
Receiver Electro-Optical Characteristics
Notes
1. Minimum average optical power at which the BER is less than
1 x 10
-10
. Measured with a 2
23
1 NRZ PRBS as recommended by
ANSI T1E1.2, SONET OC-3, and ITU-T G.957.
2. An increase in optical power of data signal above the specified level
will cause the SIGNAL DETECT to switch from a Low state to a High
state.
3. A decrease in optical power of data signal below the specified level
will cause the SIGNAL DETECT to switch from a High state to a Low
state.
4. Measured by switching the light from <40 dBm to 25 dBm.
5. Measured by switching the light from 25 dBm to <40 dBm.
Switching from higher power levels increases this time.
6. PECL compatible. Load is 50
into V
CC
2 V. Measured under DC
conditions at 25C. For dynamic measurements a tolerance of
50 mV should be added, V
CC
=5 V.
7. PECL compatible. A high level on this output shows that optical data
is applied to the optical input.
Parameter
Symbol
Min.
Typ. Max.
Units
Ambient Temperature
T
AMB
40
85
C
Power Supply Voltage
V
CC
V
EE
4.75
5.0
5.25
V
Supply Current
(1)
I
CC
150
270
mA
Transmitter
Data Input High Voltage
V
IH
V
CC
1165
880
mV
Data Input Low Voltage
V
IL
V
CC
1810
1475
Input Data Rise/Fall
Time, 10%90%
t
R
, t
F
0.4
1.3
ns
Receiver
Output Current
I
O
25
mA
Input Center
Wavelength
C
1260
1360
nm
Transmitter Symbol
Min. Typ.
Max. Units
Output Power (Average)
P
O
15
11
8
dBm
Center Wavelength
C
1260
1360 nm
Spectral Width (FWHM)
l
7.7
Output Rise Time
t
R
0.6
2.5
ns
Output Fall Time
t
F
3
Extinction Ratio
(Dynamic), at 40C
ER
8.2
dB
Reset Threshold for
TX
VCC
(1)
V
TH
4.25
4.38
4.5
V
Reset Active Time Out
(1)
T
RES
140
240
560
ms
Eye Diagram
(2)
Receiver
Symbol
Min.
Typ.
Max.
Units
Sensitivity
(Average Power)
(1)
P
IN
33
29
dBm
Saturation
(Average Power)
P
SAT
8
Signal Detect
Assert Level
(2)
P
SDA
43
36
33.5
Signal Detect
Deassert Level
(3)
P
SDD
44.5
37.5 35
Signal Detect
Hysteresis
P
SDA
P
SDD
1
1.5
3
dB
Signal Detect
Assert Time
(4)
T
ASS
10
30
100
s
Signal Detect
Deassert Time
(5)
T
DAS
30
150
350
Output Low Voltage
(6)
V
OL
V
CC
1950
1630
mV
Output High Voltage
(6)
V
OH
V
CC
1.13
735
Output Data Rise/Fall
Time, 10%90%
t
R
, t
F
1.3
ns
Output SD
Rise/Fall Time
(7)
40
Fiber Optics
V23806-A84-C3, Single Mode 155 MBd ATM/SDH/SONET 1x9 Trx, Ext. Temp. Range
4
Pin Description
Regulatory Compliance
EYE SAFETY
This laser based single mode transceiver is a Class 1 product. It
complies with IEC 60825-1 and FDA 21 CFR 1040.10 and
1040.11.
To meet laser safety requirements the transceiver shall be oper-
ated within the Absolute Maximum Ratings.
Caution
All adjustments have been made at the factory prior to ship-
ment of the devices. No maintenance or alteration to the
device is required.
Tampering with or modifying the performance of the device
will result in voided product warranty.
Note
Failure to adhere to the above restrictions could result in a modifica-
tion that is considered an act of "manufacturing," and will require,
under law, recertification of the modified product with the U.S. Food
and Drug Administration (ref. 21 CFR 1040.10 (i)).
Laser Data
Required Labels
Laser Emission
Pin Name
Level
Pin # Description
RxV
EE
Rx
Ground Power
Supply
1
Negative power supply,
normally ground
RD
Rx Output
Data
PECL
Output
2
Receiver output data
RDn
3
Inverted receiver
output data
SD
Rx Signal
Detect
PECL
Output
active
high
4
A high level on this output
shows that optical data is
applied to the optical
input.
RxV
CC
Rx +5 V
Power
Supply
5
Positive power supply,
+5 V
TxV
CC
Tx +5 V
6
TDn Tx
Input
Data
PECL
Input
7
Inverted transmitter
input data
TD
8
Transmitter input data
TxV
EE
Tx
Ground
Power
Supply
9
Negative power supply,
normally ground
Stud Pins
Mech.
Support
S1/2
Stud connected to V
EE
Feature
Standard
Comments
Electrostatic
Discharge (ESD)
to the Electrical
Pins
MIL-STD 883C
Method 3015.4
Class 1 (>1000 V)
Immunity:
Electrostatic
Discharge (ESD)
to the Duplex SC
Receptacle
EN 61000-4-2
IEC 61000-4-2
Discharges of 15kV
with an air discharge
probe on the receptacle
cause no damage.
Immunity:
Radio Frequency
Electromagnetic
Field
EN 61000-4-3
IEC 61000-4-3
With a field strength of
10 V/m rms, noise
frequency ranges from
10 MHz to 1 GHz. No
effect on transceiver
performance between
the specification limits.
Emission:
Electromagnetic
Interference (EMI)
FCC Class B
EN 55022 Class B
CISPR 22
Noise frequency range:
30 MHz to 1 GHz
Wavelength
1300 nm
Total output power (as defined by IEC: 50 mm
aperture at 10 cm distance)
2 mW
Total output power (as defined by FDA: 7 mm
aperture at 20 cm distance)
180 W
Beam divergence
4
Class 1 Laser Product
IEC
Complies with 21 CFR
1040.10 and 1040.11
FDA
Indication of laser
aperture and beam
Published by Infineon Technologies AG
Infineon Technologies AG 1999
All Rights Reserved
Attention please!
The information herein is given to describe certain components and shall not be
considered as warranted characteristics.
Terms of delivery and rights to technical change reserved.
We hereby disclaim any and all warranties, including but not limited to warranties
of non-infringement, regarding circuits, descriptions and charts stated herein.
Infineon Technologies is an approved CECC manufacturer.
Information
For further information on technology, delivery terms and conditions and prices
please contact the Infineon Technologies offices or our Infineon Technologies
Representatives worldwide - see our webpage at
www.infineon.com/fiberoptics
Warnings
Due to technical requirements components may contain dangerous substances.
For information on the types in question please contact your Infineon Technologies
offices.
Infineon Technologies Components may only be used in life-support devices or
systems with the express written approval of Infineon Technologies, if a failure of
such components can reasonably be expected to cause the failure of that
life-support device or system, or to affect the safety or effectiveness of that device
or system. Life support devices or systems are intended to be implanted in the
human body, or to support and/or maintain and sustain and/or protect human life.
If they fail, it is reasonable to assume that the health of the user or other persons
may be endangered.
Infineon Technologies AG Fiber Optics Wernerwerkdamm 16 Berlin D-13623, Germany
Infineon Technologies, Inc. Fiber Optics 1730 North First Street San Jose, CA 95112, USA
Infineon Technologies K.K. Fiber Optics Takanawa Park Tower 20-14, Higashi-Gotanda, 3-chome, Shinagawa-ku Tokyo 141, Japan
APPLICATION NOTE
Single Mode 1x9 Transceiver
* Recommended choke is Siemens Matsushita B78108-S1153-K or B78148-S1153-K (Q
min
=60, max. DC resistance=0.6
).
The power supply filtering is recommended for good EMI per-
formance. Use short tracks from the inductor L1/L2 to the mod-
ule V
CC
RX/V
CC
TX. We recommend a V
EE
plane under the
module for getting good EMI and sensitivity performance.
Studs should be connected to this V
EE
plane. The transceiver
contains an automatic shutdown circuit.
Reset is only possible if the power is turned off, and then on
again. V
CC
TX switched below V
TH
. Further application notes for
electrical interfacing are available upon request. Ask for App-
note 82.
Application board available on request.
V
EE
TxD
TxDN
R2
R4
1
27R
1
27R
S2
S1
Top View
Transceiver
R9
R8
R6
1
27R
1
27R
51
0R
V
EE
V
EE
V
EE
V
EE
RxD
RxDN
SD
V
EE
V
EE
V
EE
V
EE
V
EE
V
EE
C3
C4
V
CC
C2
C1
R1
R3
V
CC
R5
R7
82R
82R
82R
82R
V
CC
-Tx
V
CC
-Rx
L1
L2
9
1
RxV
EE
TxV
EE
DC coupling between ECL gates
C1/3 = 4.7 F
C2/4 = 4.7 F
L1/2 = 15 H (L2 optional)*
R1/3/5/7 = 82
R2/4/6/8 = 127
R9 = 510
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