Fiber Optics
JUNE 1999
V23806-A8-C1
Multimode 1300 nm LED Fast Ethernet/FDDI/ATM 10 dB
155 MBd 1x9 Transceiver
FEATURES
Compliant with Fast Ethernet, FDDI, Fibre Channel,
ATM/SONET/SDH standards
Compact integrated transceiver unit with duplex SC
receptacle
Single power supply with +5.0 V10%
PECL differential inputs and outputs
System optimized for 62.5/50
m graded index fiber
Industry standard multisource footprint
Wave solderable and washable with process
plug inserted
Testboard available
UL-94 certified
ESD Class 2 per MIL-STD 883 Method 3015
Compliant with FCC (Class B) and EN 55022
For distances of up to 2 km
APPLICATIONS
ATM switches/bridges/routers
Fast Ethernet, FDDI
High speed computer links
Local area networks
Switching systems
Absolute Maximum Ratings
Exceeding any one of these values may destroy the device
immediately.
Supply Voltage (V
CC
V
EE
) ....................................... 0.5 V to 7 V
Data Input Levels (PECL) (V
IN
)..................................... V
EE
V
CC
Differential Data Input Voltage ............................................... 3 V
Operating Ambient Temperature (
T
AMB)
................. 0
C to 70
C
Storage Ambient Temperature ............................ 40
C to 85
C
Soldering Conditions, Temp/Time (T
SOLD
/t
SOLD
)
(MIL-STD 883C, Method 2003) ............................ 250
C/5.5 s
Output Current (I
O
) ........................................................... 50 mA
DESCRIPTION
This data sheet describes the Infineon Fast Ethernet/FDDI/ATM
transceiver--part of Infineon Multistandard Transceiver Family.
It is fully compliant with the Asynchronous Transfer Mode
(ATM) OC-3 standard, the Fiber Distributed Data Interface
(FDDI) Low Cost Fiber Physical Layer Medium Dependent (LCF-
PMD) draft standard
(1)
, and the FDDI PMD standard
(2)
.
ATM was developed because of the need for multimedia appli-
cations, including real time transmission.
(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
(1.6
-
0.05
)
.063
-
.002 (a)
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
a. Stud pins are isolated
PC board thickness
(2.54)
.100
Top View
A
Dimensions in (mm) inches
Fiber Optics
V23806-A8-C1, Multimode 1300 nm LED ATM 10 dB 155 MBd 1x9 Transceiver
2
The data rate is scalable and the ATM protocol is the basis of
the broadband public networks being standardized in the Inter-
national Telegraph and Telephone Consultative Committee
(CCITT). ATM can also be used in local private applications.
FDDI is a Dual Token Ring standard developed in the U.S. by the
Accredited National Standards Committee (ANSC) X3T9, within
the Technical Committee X3T9.5. It is applied to the local area
networks of stations, transferring data at 100 Mbits/s with a
125 MBaud transmission rate. LCF FDDI is specially developed
for short distance applications of up to 500 m (fiber-to-the-desk)
as compared to 2 km for backbone applications.
Fast Ethernet was developed because of the higher bandwidth
requirement in local area networking. It is based on the proven
effectiveness of millions of installed Ethernet systems.
The Infineon multimode transceiver is a single unit comprised
of a transmitter, a receiver, and an SC receptacle. This design
frees the customer from many alignment and PC board layout
concerns. The modules are designed for low cost applications.
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recommended Operating Conditions
Notes
1. For
V
CC
V
EE
(min., max.). 50% duty cycle. The supply current
(I
CC2
+I
CC3
) does not include the load drive current (Icc1). Add max.
45 mA for the three outputs. Load is 50
into VCC 2V.
2. To maintain good LED reliability, the device should not be held in the
ON state for more than the specified time. Normal operation should
be done with 50% duty cycle.
3. To achieve proper PECL output levels the 50
termination should be
done to VCC 2 V. For correct termination see the application notes.
Transmitter Electro-Optical Characteristics
Notes
1. Measured at the end of 5 meters of 62.5/125/0.275 graded index
fiber using calibrated power meter and a precision test ferrule.
Cladding modes are removed. Values valid for EOL and worst-case
temperature.
2. The input data pattern is a 12.5 MHz square wave pattern.
3. Center wavelength is defined as the midpoint between the two
50% levels of the optical spectrum of the LED.
4. Spectral width (full width, half max) is defined as the difference
between 50% levels of the optical spectrum of the LED.
5. 10% to 90% levels. Measured using the 12.5 MHz square wave
pattern with an optoelectronic measurement system (detector
and oscilloscope) having 3 dB bandwidth ranging from less than
0.1 MHz to more than 750 MHz.
6. Extinction Ratio is defined as PL/PH x 100%. Measurement system
as in Note 5.
7. Test method as for FDDI-PMD. Jitter values are peak-to-peak.
8. Duty Cycle Distortion is defined as 0.5 [(width of wider state) minus
(width of narrower state)]. It is measured with stream of Idle
Symbols (62.5 MHz square wave).
9. Measured with the same pattern as for FDDI-PMD.
10.Measured with the Halt Line state (12.5 MHz square wave).
Parameter
Symbol
Min.
Typ. Max.
Units
Ambient Temperature
T
AMB
0
70
C
Power Supply Voltage
V
CC
V
EE
4.75
5.0
5.25
V
Supply Current +5 V
(1)
I
CC
140
170
210
mA
Transmitter
Data Input
High Voltage
V
IH
V
CC
1165
880
mV
Data Input
Low Voltage
V
IL
V
CC
1810
1475 mV
Input Data Rise/Fall,
20%80%
t
R
, t
F
0.4
1.3
ns
Data High Time
(2)
t
on
1000
Receiver
Output Current
l
O
25
mA
Input Duty Cycle
Distortion
t
DCD
1.0
ns
Input Data
Dependent Jitter
t
DDj
Input Random Jitter
t
RJ
0.76
Input Center
Wavelength
l
C
1260
1380
nm
Electrical Output
Load
(3)
R
L
50
W
Transmitter
Symbol
Min.
Typ. Max. Units
Data Rate
DR
200
MBd
Launched Power (Average)
into 62.5
m Fiber
(1, 2)
P
O
20
17
14
dBm
Center Wavelength
(2, 3)
C
1270
1360 nm
Spectral Width (FWHM)
(2, 4)
D
l
200
Output Rise/Fall Time,
10%90%
(2, 5)
t
R
, t
F
0.6
2.5
ns
Extinction Ratio
(Dynamic)
(2, 6)
ER
10
%
Overshoot
OS
10
%
Duty Cycle Distortion
(7, 8)
t
DCD
0.6
ns
Data Dependent Jitter
(7, 9)
t
DDJ
0.3
Random Jitter
(7, 10)
t
RJ
0.6
Infineon Technologies AG i.Gr. Fiber Optics Wernerwerkdamm 16 Berlin D-13623, Germany
Infineon Technologies, Corp. Fiber Optics 19000 Homestead Road Cupertino, CA 95014 USA
Siemens K.K. Fiber Optics Takanawa Park Tower 20-14, Higashi-Gotanda, 3-chome, Shinagawa-ku Tokyo 141, Japan
www.infineon.com/fiberoptics
Receiver Electro-Optical Characteristics
Notes
1. For a bit error rate (BER) of less than 1x10
E12
over a receiver eye
opening of least 1.5 ns. Measured with a 2
7
1 PRBS at 194 MBd.
2. For a BER of less than 1x10
E-12
. Measured in the center of the eye
opening with a 2
7
-1 PRBS at 194 MBd.
3. Measured at an average optical power level of 20 dBm with a
62.5 MHz square wave.
4. All jitter values are peak-to-peak. RX output jitter requirements are
not considered in the ATM standard draft. In general the same
requirements as for FDDI are met.
5. Measured at an average optical power level of 20 dBm.
6. Measured at 33 dBm average power.
7. An increase in optical power through the specified level will
cause the SIGNAL detect output to switch from a Low state to
a High state.
8. A decrease in optical power through the specified level will
cause the SIGNAL detect output to switch from a High state to
a Low state.
9. PECL compatible. Load is 50
into V
CC
2 V. Measured under DC
conditions. For dynamic measurements a tolerance of 50 mV should
be added for V
CC
=+5 V.
Pin Description
APPLICATION NOTE
Multimode 1300nm ATM 1x9 Transceiver
The power supply filtering is required for good EMI perfor-
mance. Use short tracks from the inductor L1/L2 to the module
V
CC
Rx/V
CC
Tx.
A GND plane under the module is recommended for good EMI
and sensitivity performance as well as ground connection of
studs.
Receiver
Symbol
Min.
Typ.
Max.
Units
Data Rate
DR
5
200
MBd
Sensitivity
Average Power)
(1)
P
IN
33
31
dBm
Saturation (Average
Power)
(2)
P
SAT
14
11
Duty Cycle
Distortion
(3, 4)
t
DCD
1.4
ns
Deterministic Jitter
(4, 5)
t
DJ
2.2
Random Jitter
(4, 6)
t
RJ
2.3
Signal Detect
Assert Level
(7)
P
SDA
42.5
30
dBm
Signal Detect
Deassert Level
(8)
P
SDD
45
31.5
Signal Detect
Hysteresis
P
SDA
P
SDD
1.5
dB
Output Low Voltage
(9)
V
OL
V
CC
1810
1620
mV
Output High Voltage
(9)
V
OH
V
CC
1025
880
Output Data
Rise/Fall Time,
20%80%
t
R
, t
F
1.3
ns
Output SD
Rise/Fall Time,
20%80%
40
Pin Name
Level/Logic
Pin#
Description
R
x
V
EE
Rx Ground Power Supply 1
Negative power sup-
ply, normally ground
RD
Rx Output
Data
PECL Output
2
Receiver output data
RDn
3
Inverted receiver out-
put data
RxSD
RX Signal
Detect
PECL Output
active high
4
High level on this out-
put shows there is an
optical signal.
R
x
V
CC
Rx +5 V
Power Supply 5
Positive power sup-
ply, +5 V
T
x
V
CC
Tx +5 V
6
TxDn Tx
Input
Data
PECL Input
7
Inverted transmitter
input data
TxD
8
Transmitter input
data
T
x
V
EE
Tx Ground Power Supply 9
Negative power sup-
ply, normally ground
Stud
Ground
S1/
S2
Ground connected,
Mech. support
GND
C1
VCC
VCC
GND
C2
VCC Rx
L1
GND
C3
GND
C4
L2
VCC Tx
GND
GND
VCC-Tx
VCC-Rx
Transceiver
R3
R1
GND GND
VCC-Tx
GND GND
VCC-Rx
GND
9
1
R4
R2
R7
R5
R8
R6
R9
TxD
TxDn
RDn
SD
RD
GND
GND
DC coupling between ECL gates.
C1/3= 4700 nF (optional)
C2/4= 4700 nF
L1/2= 15000 nH
(L2 is optional)
R in
+5 V
R1/3
82
R2/4
130
R5/7
82
R6/8
130
R9
200
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