Fiber Optics
JULY 1999
*
11 dB
V23809-C8-T10
Multimode 1300 nm LED Fast Ethernet/FDDI/ATM
170 MBd 1x9 Transceiver with ST
Connector
FEATURES
Compliant with Fast Ethernet, FDDI, Fibre Channel,
ATM/SONET/SDH standards
Meets mezzanine standard height of 9.8 mm
Compact integrated transceiver unit with duplex SC
receptacle
Single power supply with 3.0 V to 5.5 V range
Extremely low power consumption < 0.7 W at 3.3 V
PECL differential inputs and outputs
System optimized for 62.5/50 m graded index fiber
Industry standard multisource footprint
Testboard available
UL-94 V-0 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 on multimode fiber
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 85C
Storage Ambient Temperature ............................ 40 C to 85C
Soldering Conditions, Temp/Time (T
SOLD
/t
SOLD
)
(MIL-STD 883C, Method 2003) .............................. 270 C/10 s
ESD Resistance (all pins to V
EE
, human body) .................. 1.5 kV
Output Current (I
O
) ........................................................... 50 mA
*Available also as 8 dB V23809-C8-T11 on request
ST
is a registered trademark of AT&T
(0.46) .02 x 9
(14.4) .567
(9.8) max.
.39 max.
(41.2) 1.622
(3.8) .15 max.
(2.8)
max.
.11
max.
(18.47) .727
(20.32) .8
(5.27) .207
(1) .039
(0.6)
.024
(3
0.2
)
.118
.008
A
(1.4)
.055
2x
(0.1)
M A M
bottom
view
(0.3)
M A M
(1.4)
(25.4) max.
1 max.
(20.32)
8
(2.54)
.1
(12.7)
.5
1
9
Dimensions in (mm) inches
Fiber Optics
V23809-C8T10, MM 1300 nm LED Fast Ethernet/FDDI/ATM Transceiver (ST)
2
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. The data rate is scal-
able and the ATM protocol is the basis of the broadband public
networks being standardized in the International 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 ST receptacle. This design
frees the customer from many alignment and PC board layout
concerns. The modules are designed for low cost applications.
The inputs/outputs are PECL compatible and the unit operates
from a 3.0 V to 5.5 V power supply. As an option, the data out-
put stages can be switched to static levels during absence of
light, as indicated by the Signal Detect function. It can be
directly interfaced with available chipsets.
Notes
1. FDDI Token Ring, Low Cost Fiber Physical Layer Medium Depen-
dent (LCF-PMD) ANSI X3T9.5 / 92 LCF-PMD / Proposed Rev. 1.3,
September 1, 1992. American National Standard.
2. FDDI Token Ring, Physical Layer Medium Dependent (PMD) ANSI
X3.166-1990 American National Standard. ISO/IEC 9314-3: 1990.
Regulatory Compliance
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.
Feature
Standard
Comments
Electromagnetic
Interference (EMI)
FCC Class B
EN 55022 Class B
CISPR 22
Noise frequency
range:30 MHz to
1 GHz
Immunity:
Electrostatic
Discharge
EN 61000-4-2
IEC 1000-4-2
Discharges of
15kV with an air
discharge probe on
the receptacle cause
no damage.
Immunity:
Radio Frequency
Electromagnetic
Field
EN 61000-4-3
IEC 1000-4-3
With a field strength
of 10 V/m rms, noise
frequency ranges
from 10 MHz to
1 GHz
Eye Safety
IEC 825-1
Class 1
Parameter
Symbol
Min.
Typ. Max.
Units
Ambient Temperature
T
AMB
0
70
C
Power Supply Voltage
V
CC
V
EE
3
5.5
V
Supply Current 3.3 V
I
CC
230
mA
Supply Current 5 V
(1)
260
Transmitter
Data Input
High Voltage
V
IH
V
CC
1165
880
mV
Data Input
Low Voltage
V
IL
V
CC
1810
1475
Threshold Voltage
V
BB
V
CC
1380
1260
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
Fiber Optics
V23809-C8T10, MM 1300 nm LED Fast Ethernet/FDDI/ATM Transceiver (ST)
3
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. Optical Power Low is the output power level when a steady state
low data pattern (FDDI Quiet Line state) is used to drive the trans-
mitter. Value valid <1 ms after input low.
8. Test method as for FDDI-PMD. Jitter values are peak-to-peak.
9. 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).
10.Measured with the same pattern as for FDDI-PMD.
11. Measured with the Halt Line state (12.5 MHz square wave).
Receiver Electro-Optical Characteristics
Notes
1. Pattern: Manchester coding / NRZI (no scrambling)
2. 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
23
1 PRBS at 155 MBd.
3. For a BER of less than 1x10
E-12
. Measured in the center of the eye
opening with a 2
23
-1 PRBS at 155 MBd.
4. Measured at an average optical power level of 20 dBm with a 62.5
MHz square wave.
5. 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.
6. Measured at an average optical power level of 20 dBm.
7. Measured at 33 dBm average power.
8. 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.
9. 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.
10. 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.
Transmitter
Symbol
Min.
Typ.
Max.
Units
Data Rate
DR
170
MBaud
Launched Power
(Average) into 62.5
m
Fiber for C8C10
(1, 2)
P
O
20
16
14
dBm
Launched Power
(Average) into 62.5
m
Fiber for C8C11
(1, 2)
22
17
Center Wavelength
(2, 3)
C
1270
1360
nm
Spectral Width
(FWHM)
(2, 4)
D
l
170
Output Rise/Fall Time,
10%90%
(2, 5)
t
R
, t
F
0.6
2.5
ns
Temperature
Coefficient of Optical
Output Power
TCp
0.03
dB/C
Extinction Ratio
(Dynamic)
(2, 6)
ER
10
%
Optical Power Low
(7)
P
TD
45
dBm
Overshoot
OS
10
%
Duty Cycle
Distortion
(8, 9)
t
DCD
0.6
ns
Data Dependent
Jitter
(8, 10)
t
DDJ
0.3
Random Jitter
(8, 11)
t
RJ
0.6
Receiver
Symbol
Min.
Typ.
Max.
Units
Data Rate
DR
5
(1)
170
MBaud
Sensitivity
Average Power)
(2)
P
IN
33
31
dBm
Sensitivity (Average
Power) Center
(3)
35.5
Saturation (Average
Power)
(3)
P
SAT
14
11
Duty Cycle
Distortion
(4, 5)
t
DCD
1
ns
Deterministic
Jitter
(5, 6)
t
DJ
1
Random Jitter
(5, 7)
t
RJ
Signal Detect
Assert Level
(8)
P
SDA
42.5
30
dBm
Signal Detect
Deassert Level
(9)
P
SDD
45
31.5
Signal Detect
Hysteresis
P
SDA
P
SDD
1.0
dB
Output Low
Voltage
(10)
V
OL
V
CC
1810
1620
mV
Output High
Voltage
(10)
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
Fiber Optics
V23809-C8T10, MM 1300 nm LED Fast Ethernet/FDDI/ATM Transceiver (ST)
4
Pin Description
APPLICATION NOTE
Multimode 1300 nm 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.
Pin Name
Level/Logic
Pin#
Description
R
x
V
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
RxSD
RX Signal Detect
PECL Output active high 4
High level on this output shows there is an optical signal.
R
x
V
CC
Rx +3.3 V...5 V
Power Supply
5
Positive power supply, +3.3 V...5 V
T
x
V
CC
Tx +3.3 V...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 supply, normally ground
Case
Support
Not Connected
S1/S2
Support stud, not connected
GND
C1
VCC
VCC
GND
C2
VCCRX
L1
GND
C3
GND
C4
L2
VCCTX
GND
GND
VCC-TX
VCC-RX
Transceiver
82R
82R
130R
130R
GNDGND
R3
R1
VCCTX
82R
82R
130R
130R
GNDGND
R7
R5
VCCRX
200R
GND
R9
R8
R6
RD
RDN
SD
TXD
TXDN
R2
R4
9
1
C1/3=4700 nF (optional)
C2/4=4700 nF
L1/2=15000 nH (L2 is optional)
R9=200 Ohm
R in Ohm
5 V
4 V
3.3 V
R1/3
82
100
127
R2/4
130
100
83
R5/7
82
100
127
R6/8
130
100
83
DC coupling between ECL gates.
Infineon Technologies AG 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
APPLICATION NOTE FOR MULTIMODE 1300 NM LED TRANSCEIVER
Solutions for connecting a Infineon 3.3 V Fiber Optic Transceiver to a 5.0 V Framer-/Phy-Device.
Figur 1. Common GND
Figure 2. Common V
CC
Framer/Phy
Clock
Recovery
Infineon
Fiber
Optic
Transceiver
V
CC
V
CC
Data
In
Data
Out
SD
In
Rx
Out
Tx
In
SD
Out
50
0
83
50
0
68
12
7
18
0
V
CC
5.0 V
V
CC
3.3 V
100 nF
100 nF
Framer/Phy
Clock
Recovery
5V
Infineon
Fiber
Optic 3.3 V
Transceiver
V
CC
V
CC
SD
In
51
0
18
K
V
CC
5.0 V
V
CC
3.3 V
SD
Out
1
1
1.8 V
Zener-Diode 1.8 V
Framer/Phy
Clock
Recovery
5V
Infineon
Fiber
Optic 3.3 V
Transceiver
V
CC
V
CC
SD
83
39K
127
26K
V
CC
5.0 V
V
CC
3.3 V
SD
SD
Inputs and outputs are differential and should be
doubled. Signal Detect (SD) is single ended (if used).
Figure 1a. Circuitry for SD (Differential) and
Common GND
Figure 1b. Circuitry for SD (Single Ended)
and Common GND
Framer/Phy
Clock
Recovery
Infineon
Fiber
Optic
Transceiver
V
CC
V
CC
Data
In
Data
Out
SD
In
Rx
Out
Tx
In
SD
Out
V
CC
GND 5.0 V
GND 5.0 V
GND 3.3 V
GND 3.3 V
GND 3.3 V
20
0
82
83
1
2
7
13
0
Inputs and outputs are differential
and should be doubled. Signal
Detect (SD) is single ended.
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