Fiber Optics
MARCH 2000
(5V/3.3V)
V23826-K15-C
(*)
Single Mode 1300 nm 1.0625 GBd Fibre Channel
1.3 Gigabit Ethernet 1x9 Transceiver
FEATURES
Compliant with Fibre Channel and Gigabit Ethernet
standard
Meets mezzanine standard height of 9.8 mm
Compact integrated transceiver unit with
MQW laser diode transmitter
InGaAs PIN photodiode receiver
Duplex SC receptacle
Class 1 FDA and IEC laser safety compliant
Single power supply (5 V or 3.3 V)
Signal detect indicator (PECL and TTL version)
PECL differential inputs and outputs
Process plug included
Input Signal Monitor (DC/DC-Version)
Performance exceeds FC 100-SM-LL-I
Wave solderable and washable with process plug
inserted
For distances of up to 10 km on single mode fiber, and up
to 550 m on multimode fiber (use offset jumper as speci-
fied in IEEE 802.3)
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
) 5 V .............................................. 6 V
3.3 V ........................................... 4 V
Data Input Levels (PECL) ........................................... V
CC
+0.5 V
Differential Data Input Voltage ............................................ 2.5 V
Operating Ambient Temperature ............................... 0 to 70 C
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.
*) Ordering Information
Note
1. Standard
version
(1
0.1
)
.04
.004
(0.35
0.1
)
.014
.004
4.875
.192
Optical
Centerline
PC board
Process plug
(9.79 max)
.385 max
(
3.3
0.2
)
.13
.008
(2)
.080
12.7
.500
(0.63
0.2
)
.025
.008
(25.25
0.05
)
.994
.002
20.32
.800
123456789
(38.6
0.15
)
1.52
.006
(11 max)
.433 max
(1.4 -
0.05
)
.055 -
.002
qqqqqqqqq
Z
View Z
(Lead cross section
and standoff size)
Rx
Tx
(2.8 max)
.110 max
20.32
.800
20.32
.800
9x
(0.8
0.1
)
.032
.004
(1.9
0.1
)
.075
.004
2x
(2.54)
.100
(0.6
0.1
)
.024
.004
(8.6 max)
.338 max
(3.8 max)
.150 max
Top view
Footprint
A
(2.54)
.100
Cutout
(2.5)
.098
(2.05)
.081
(
0.46
0.05
)
.018
.002
(15.88
0.25
)
.625
.010
TRX without shield
Dimensions in (mm) inches
Input
Output
Signal detect
Voltage
Part number
AC
DC
PECL
5 V
V23826-K15-C13
3.3 V
V23826-K15-C313
AC
AC
TTL
5 V
V23826-K15-C53
3.3 V
V23826-K15-C353
DC
DC
PECL
5 V
V23826-K15-C63
(1)
3.3 V
V23826-K15-C363
(1)
AC
AC
PECL
5 V
V23826-K15-C73
3.3 V
V23826-K15-C373
Shield options
Add suffix to PIN
Metallized cover, forward springs
-C3
Metallized cover, backward springs
-D3
Fibre Optics
V23826-K15-C13/C53/C63/C73, Single Mode 1300 nm 1.3 Gigabit Ethernet 1x9 Trx
2
DESCRIPTION
The Infineon single mode transceiver is based on the Physical
Medium Depend (PMD) sublayer and baseband medium, type
1000BASE-LX (Long Wavelength Laser) (IEEE 802.5) and com-
plies with the Fibre Channel Physical and Signaling Interface
(FC-PH), ANSI XSI TT Fibre Channel Physical Standard Class
100-SM-LL-I, latest Revision.
The appropriate fiber optic cable is 9 m (mode field diameter)
single mode fiber (up to 10 km) with Duplex SC connector.
The Infineon single mode 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 module is designed for low cost LAN, WAN and
Gigabit Ethernet applications. It can be used as the network
end device interface in mainframes, workstations, servers, and
storage devices, and in a broad range of network devices such
as bridges, routers, intelligent hubs, and local and wide area
switches.
This transceiver operates at 1.0625 and 1.3 Gbit/s from a single
power supply (+5 Volt or 3.3 Volt). The full differential data
inputs and outputs are PECL compatible.
Functional Description
This transceiver is designed to transmit serial data via single
mode or multimode 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 an optical signal
is present.
The transmitter converts electrical PECL compatible serial data
(TD and TDnot) into optical serial data.
The following versions are available:
1. AC/DC Transceiver
Tx is AC coupled. Differential 100
load. Rx has standard PECL
output and is DC coupled.
2. AC/AC TTL Transceiver
Tx and Rx are AC coupled. Tx has differential 100
load. Signal
Detect is TTL compatible.
3. DC/DC Transceiver
Standard PECL inputs and outputs Tx and Rx are DC coupled.
This version contains an Input Signal Monitor (ISM) which
switches off the transceiver if a continuous low level is applied
at Data Input.
4. AC/AC PECL Transceiver
Tx and Rx are AC coupled. Tx has differential 100
load. Signal
Detect is PECL compatible.
The transmitter 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 out-
put 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.
Single fault condition is ensured by means of an integrated
automatic shutdown circuit that disables the laser when it
detects transmitter failures. A reset is only possible by turning
the power off, and then on again.
The transceiver contains a supervisory circuit to control the
power supply. This circuit generates 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.
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
Signal Monitor and
Automatic Shut-Down
ISM*
*DC/DC Version only
Fiber Optics
V23826-K15-C13/C53/C63/C73, Single Mode 1300 nm 1.3 Gigabit Ethernet 1x9 Trx
3
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are only valid 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 does
not include the load drive current of the receiver output.
2. Peak to peak voltage of one input.
Transmitter Electro-Optical Characteristics
Notes
1. Into single mode fiber, 9 m diameter.
2. Laser power is shut down if power supply is below V
TH
and
switched on if power supply is above V
TH
after t
RES
.
Receiver Electro-Optical Characteristics
Notes
1. Minimum average optical power at which the BER is less than
1x10
E-12
or lower. Measured with a 2
7
-1 NRZ PRBS and ER=9 dB.
Output of single mode fiber 9 m diameter.
2. An increase in optical power above the specified level will cause the
SIGNAL DETECT output to switch from a Low state to a High state.
3. A decrease in optical power below the specified level will cause the
SIGNAL DETECT to change from a High state to a Low state.
4. DC/DC, AC/DC for data
DC/DC, AC/DC, AC/AC PECL for Signal Detect
PECL compatible. Load is 50
into V
CC
2 V for data, 500
to V
((
for Signal Detect. Measured under DC conditions. For dynamic mea-
surements a tolerance of 50 mV should be added. V
CC
=3.3 V/5 V.
T
AMB
=25C.
5. Max. output current high: 0.4 mA (drive current)
low: +2.0 mA (sink current)
6. AC/AC for data. Load 50
to GND or 100
differential. For dynamic
measurement a tolerance of 50mV should be added.
Parameter
Symbol
Min.
Typ. Max.
Units
Ambient Temperature
T
AMB
0
70
C
Power
Supply
Voltage
3.3 V
V
CC
V
EE
3.1
3.3
3.5
V
5 V
4.75
5
5.25
Supply
Current
(1)
3.3 V
I
CC
230
mA
5 V
270
Transmitter
Data Input
High Voltage DC/DC
V
IH
V
CC
1165
880
mV
Data Input
Low Voltage DC/DC
V
IL
V
CC
1810
1475
Data Input Differential
Voltage
(2)
AC/DC, AC/AC TTL,
AC/AC PECL
V
DIFF
300
800
Input Data Rise/Fall
Time 10%90%
t
R
, t
F
100
750
ps
Receiver
Input Center
Wavelength
C
1270
1355
nm
Transmitter
Symbol Min.
Typ.
Max. Units
Launched Power
(Average)
(1)
P
O
11.0
3
dBm
Center Wavelength
C
1270
1355
nm
Spectral Width (RMS)
4
Relative Intensity Noise
RIN
120
dB/Hz
Extinction Ratio (Dynamic) ER
9
dB
Reset
Threshold
(2)
5 V
V
TH
3.5
V
3.3 V
2.7
Reset Time Out
(2)
t
RES
15
22
35
ms
Receiver
Symbol
Min.
Typ.
Max.
Units
Sensitivity
(Average Power)
(1)
P
IN
22
20
dBm
Saturation
(Average Power)
P
SAT
3
Signal Detect
Assert Level
(2)
P
SDA
20
Signal Detect
Deassert Level
(3)
P
SDD
30
Signal Detect
Hysteresis
P
SDA
P
SDD
1.5
dB
Signal Detect
Assert Time
t
ASS
100
s
Signal Detect
Deassert Time
t
DAS
350
Output Low Voltage
(4)
V
OL
-V
CC
1950
1600 mV
Output High Voltage
(4)
V
OH
-V
CC
1025
720
Signal Detect
Output Voltage
AC/AC TTL
(5)
Low
V
SDL
0.5
V
High
V
SDH
2
Data Output Differential
Voltage
(6)
V
DIFF
0.5
0.9
Output Data Rise/Fall
Time, 20%80%
t
R
, t
F
375
ps
Return Loss of Receiver A
RL
12
dB
Fibre Optics
V23826-K15-C13/C53/C63/C73, Single Mode 1300 nm 1.3 Gigabit Ethernet 1x9 Trx
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 / Logic
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
(TTL C53/353)
4
High level on this
output shows
there is an optical
signal.
Rx-
V
CC
Rx 3.3V/5V
Power Supply
5
Positive power
supply, 3.3V/5V
TxV
CC
Tx 3.3V/5V
6
TDn
Tx Input Data PECL Input
7
Inverted transmit-
ter input data
TD
8
Transmitter input
data
TxV
EE
Tx Ground
Power Supply
9
Negative power
supply, normally
ground
Case
Support
Mech. Support
S1/2
Not connected
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 In-
terference EMI
FCC Class B
EN 55022
Class B
CISPR 22
Noise frequency range:
30 MHz to 6 GHz; Mar-
gins depend on PCB lay-
out and chassis design
Wavelength
1300 nm
Total output power (as defined by IEC: 50 mm
aperture at 10 cm distance)
less than
2 mW
Total output power (as defined by FDA: 7 mm
aperture at 20 cm distance)
less than
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
Fiber Optics
V23826-K15-C13/C53/C63/C73, Single Mode 1300 nm 1.3 Gigabit Ethernet 1x9 Trx
5
APPLICATION NOTE
Gigabit transceivers and matching circuits are high frequency
components and shall be terminated as recommended in the
application notes for proper EMI performance. Electromagnetic
emission may be caused by these components.
To prevent emissions it is recommended that cutouts for the
fiber connectors be designed as small as possible.
It is strongly recommended that the Tx plug and the Rx plug be
separated with a bar that divides the duplex SC opening.
If shielded parts are employed, they should be in proper contact
with the bezel (back plane).
Since the shield is galvanically isolated from signal ground it is
strongly recommended to prevent any contact between shield
and the circuitry i.e. even any ground connection on the pcb
may be harmful to EMI performance.
In cases where EMI performance becomes critical it has proven
to be helpful when using SC-plugs with less metal parts inside
(as Infineon fibers).
APPLICATION NOTE
Single Mode 1300 nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver, DC/DC Version
Values of R1/2/3/4 may vary as long as proper 50
termination
to V
EE
or 100
differential is provided. The power supply filter-
ing is required for good EMI performance. Use short tracks
from the inductor L1/L2 to the module V
CC
RX/V
CC
TX. We rec-
ommend a GND plane under the module for getting good EMI
performance.
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
).
Application Board available on request.
The stud pins S1 and S2 are not connected.
C7
C6
Laser
Driver
Signal
Detect
Limiting
Amplifier
Pre-
Amp
RD-
RD+
Tx+
Tx-
Serializer/
Deserializer
Gigabit
Transceiver
Chip
RD-
ECL/PECL
Driver
Receiver
PLL etc.
Infineon Transceiver
V23826-K15-C63/C363
DC/DC Option
1
2
3
4
5
6
7
8
9
SD to upper level
TxGND
TxD
TxD
V
CC
Tx
V
CC
Rx
SD
RxD
RxD
RxGND
V
CC
R8
L1
L2
C2
C1
R9
R5
R6
R3
R4
R1
R2
C3
C4
C5
V
CC
SerDes
5 V / 3.3 V
V
CC
5 V / 3.3 V
RD+
R10
R7
R11
C1/2/3
= 4.7 F
C4/5/6/7
= 10 nF
L1/2
= 1 H
R10/11
= 82
(5 V)
=
127
(3.3 V)
(depends on SerDes chip used)
R7/8
= 127
(5 V)
= 82
(3.3 V)
(depends on SerDes chip used)
R5/6
= 300
(5 V)
=
150
(3.3 V)
R9
= 510
(5 V)
= 270
(3.3 V)
Place R1/2/3/4 close to
SerDes chip, depends on
SerDes chip used, see application note of SerDes supplier.
Place R7/8/10/11 close to Infineon Transceiver
PDF 
ZIP