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V23806-A84-C20
SM 155 Mbd ATM/SDH/SONET Transceiver
V23806-A84-C20
Single Mode 155 MBd ATM/SDH/SONET 1x9 Transceiver
with Isolated Stud Pins and High Sensitivity
FEATURESCompliant with ATM, SONET OC-3, SDH STM-1 Compact integrated transceiver unit withMQW laser diode transmitterInGaAs PIN photodiode receiverDuplex SC receptacleClass 1 FDA and IEC laser safety compliant FDA Accession No. 9520890Single power supply (5 V)Signal detect indicatorPECL differential inputs and outputsProcess plug includedWave solderable and washable with process
plug inserted
Isolated studsIndustry standard multisource 1x9 footprintFor distances of up to 15 km on single mode fiber
Absolute Maximum RatingsExceeding any one of these values may destroy the device
immediately.
Package Power Dissipation(1)............................................1.5 W
Supply Voltage (VCC–VEE)......................................................6 V
Data Input Levels .......................................................VCC+0.5 V
Differential Data Input Voltage............................................2.5 V
Operating Ambient Temperature............................0°C to 70°C
Storage Ambient Temperature............................–40°C to 85°C
Soldering Conditions, Temp/Time
(MIL-STD 883C, Method 2003).............................250°C/5.5s
NoteFor VCC–VEE (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 Ω to VCC–2 V.
DESCRIPTIONThe 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 DescriptionThis transceiver is designed to transmit serial data via single
mode cable.
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
whenever 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.
NoteWe recommend to switch off the transmitter supply (VCC-Tx) if no
transmitter input data is applied.
TECHNICAL DATAThe electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recommended Operating ConditionsNote
1. For VCC–VEE (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 Ω to VCC–2 V.
ransmitter Electro-Optical CharacteristicsNotes.Laser power is shut down if power supply is below VTH and
switched on if power supply is above VTH after tRES.Transmitter meets ANSI T1E1.2, SONET OC-3, and ITU-T G.957
maskpatterns.
Receiver Electro-Optical CharacteristicsNotesMinimum average optical power at which the BER is less than 10-10. Measured with a 223–1 NRZ PRBS as recommended by
ANSI T1E1.2, SONET OC-3, and ITU-T G.957.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.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.Measured by switching the light from <–40 dBm to –25 dBm.Measured by switching the light from –25 dBm to <–40 dBm.
Switching from higher power levels increases this time. PECL compatible. Load is 50 Ω into VCC–2 V. Measured under DC
conditions at 25°C. For dynamic measurements a tolerance of
50 mV should be added. VCC=5 V..PECL compatible. A high level on this output shows that optical data
is applied to the optical input.
Pin Description
Regulatory Compliance
EYE SAFETYThis laser based single mode transceiver is a Class 1 product. It
complies with IEC 60825-1 and FDA 21 CFR 1040.10 and
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
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.
InformationFor 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
WarningsDue 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.
APPLICATION NOTE
Single Mode 1x9 Transceiver with Isolated Stud Pins* Recommended choke is Siemens Matsushita B78108-S1153-K or B78148-S1153-K (Qmin=60, max. DC resistance=0.6 Ω).
The power supply filtering is recommended for good EMI per-
formance. Use short tracks from the inductor L1/L2 to the mod-
ule VCC–RX/VCC–TX. We recommend a VEE plane under the
module for getting good EMI and sensitivity performance.
The transceiver contains an automatic shutdown circuit. Reset
is only possible if the power is turned off, and then on again.
(VCCTX switched below VTH). Further application notes for elec-
trical interfacing are available upon request. Ask for Appnote 82.
Application board available on request.
:
www.ic-phoenix.com
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