Data Sheet
1
2003-04-25
SFP - Small Form-factor Pluggable
Single Mode 1300 nm 1.0625 Gbit/s Fibre Channel
1.25 Gigabit Ethernet Transceiver with LCTM Connector
V23818-K15-B57
File: 1115
Fiber Optics
LCTM is a trademark of Lucent
Features
Small Form-factor Pluggable (SFP) transceiver
Fully SFP MSA compliant
1)
Advanced release mechanism
Easy access, even in belly to belly applications
Grip for easy access no tool is needed
Color coded blue (single mode)
Excellent EMI performance
RJ-45 style LCTM connector system
Single power supply (3.3 V)
Low power consumption
Small size for high channel density
UL-94 V-0 certified
ESD Class 1C per JESD22-A114-B (MIL-STD 883D Method 3015.7)
Compliant with FCC (Class B) and EN 55022
For distances of up to 10 km
Class 1 FDA and IEC laser safety compliant
AC/AC Coupling according to SFP MSA
Recommendation: Infineon Cage one-piece design V23838-S5-N1 for press fit and/or
solderable
SFP evaluation board V23818-S5-V2 available upon request
1)
Current MSA documentation can be found at www.infineon.com/fiberoptics
V23818-K15-B57
Pin Configuration
Data Sheet
2
2003-04-25
Pin Configuration
Figure 1
SFP Transceiver Electrical Pad Layout
V
EE
T
TD
-
TD+
V
EE
T
V
CC
T
V
CC
R
V
EE
R
RD+
RD
-
V
EE
R
20
19
18
17
16
15
14
13
12
11
V
EE
T
Tx Fault
Tx Disable
MOD-DEF(2)
MOD-DEF(1)
MOD-DEF(0)
Rate Select
LOS
V
EE
R
V
EE
R
1
2
3
4
5
6
7
8
9
10
Top of transceiver
Bottom of transceiver (as viewed
through top of transceiver)
File: 1306
V23818-K15-B57
Pin Configuration
Data Sheet
3
2003-04-25
Pin Description
Pin No.
Name
Logic Level
Function
1
V
EE
T
N/A
Transmitter Ground
1)
2
Tx Fault
LVTTL
Transmitter Fault Indication
2)
8)
3
Tx Disable
LVTTL
Transmitter Disable
3)
4
MOD-DEF(2)
LVTTL
Module Definition 2
4)
8)
5
MOD-DEF(1)
LVTTL
Module Definition 1
5)
8)
6
MOD-DEF(0)
N/A
Module Definition 0
6)
8)
7
Rate Select
N/A
Not connected
8
LOS
LVTTL
Loss Of Signal
7)
8)
9
V
EE
R
N/A
Receiver Ground
1)
10
V
EE
R
N/A
Receiver Ground
1)
11
V
EE
R
N/A
Receiver Ground
1)
12
RD
LVPECL
Inv. Received Data Out
9)
13
RD+
LVPECL
Received Data Out
9)
14
V
EE
R
N/A
Receiver Ground
1)
15
V
CC
R
N/A
Receiver Power
16
V
CC
T
N/A
Transmitter Power
17
V
EE
T
N/A
Transmitter Ground
1)
18
TD+
LVPECL
Transmit Data In
10)
19
TD
LVPECL
Inv. Transmit Data In
10)
20
V
EE
T
N/A
Transmitter Ground
1)
1)
Common transmitter and receiver ground within the module.
2)
A high signal indicates a laser fault of some kind and that laser is switched off.
3)
A low signal switches the transmitter on. A high signal or when not connected switches the transmitter off.
4)
MOD-DEF(2) is the data line of two wire serial interface for serial ID.
5)
MOD-DEF(1) is the clock line of two wire serial interface for serial ID.
6)
MOD-DEF(0) is grounded by the module to indicate that the module is present.
7)
A low signal indicates normal operation, light is present at receiver input. A high signal indicates the received
optical power is below the worst case receiver sensitivity.
8)
Should be pulled up on host board to
V
CC
by 4.7 - 10 k
.
9)
AC coupled inside the transceiver. Must be terminated with 100
differential at the user SERDES.
10)
AC coupled and 100
differential termination inside the transceiver.
V23818-K15-B57
Description
Data Sheet
4
2003-04-25
Description
The Infineon Fibre Channel / Gigabit Ethernet single mode transceiver part of Infineon
Small Form Factor transceiver family is based on the Physical Medium Depend (PMD)
sublayer and baseband medium, type 1000 Base-LX (long wavelength) compliant to
IEEE Std 802.3 and Fibre Channel FC-PI (Rev. 13) 100-SM-LC-L.
The appropriate fiber optic cable is 9 m single mode fiber with LCTM connector.
The Infineon SFP single mode transceiver is a single unit comprised of a transmitter, a
receiver, and an LCTM receptacle.
This transceiver supports the LCTM connectorization concept. It is compatible with RJ-45
style backpanels for high end datacom and telecom applications while providing the
advantages of fiber optic technology.
The module is designed for low cost SAN, LAN, WAN, Fibre Channel 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, hubs, and local and wide area switches.
This transceiver operates at 1.0625 and 1.25 Gbit/s from a single power supply (+3.3 V).
The full differential data inputs and outputs are LVPECL compatible.
Link Length as Defined by IEEE and Fibre Channel Standards
Fiber Type
Reach
Unit
min.
1)
1)
Minimum reach as defined by IEEE and Fibre Channel Standards. A 0 m link length (loop-back connector) is
supported.
typ.
max.
2)
2)
Maximum reach as defined by IEEE and Fibre Channel Standards. Longer reach possible depending upon link
implementation.
at 1.0625 Gbit/s
9 m, SMF
2
10,000
meters
50 m, 500 MHz*km
0.5
550
62.5 m, 200 MHz*km
0.5
550
at 1.25 Gbit/s
9 m, SMF
2
5,000
meters
50 m, 400/500 MHz*km
2
550
62.5 m, 500 MHz*km
2
550
V23818-K15-B57
Description
Data Sheet
5
2003-04-25
Functional Description of SFP Transceiver
This transceiver is designed to transmit serial data via single mode cable.
Figure 2
Functional Diagram
The receiver component converts the optical serial data into LVPECL compatible
electrical data (RD+ and RD). The Loss Of Signal (LOS) shows whether an optical
signal is not present (lost).
The transmitter converts LVPECL compatible electrical serial data (TD+ and TD) into
optical serial data. Data lines are differentially 100
terminated.
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 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.
Single fault condition is ensured by means of an integrated automatic shutdown circuit
that disables the laser when it detects laser fault to guarantee the laser Eye Safety.
The transceiver contains a supervisory circuit to control 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.
Laser
Driver
Power
Control
Receiver
o/e
o/e
Laser
e/o
Rx Coupling Unit
TD
-
TD+
TxDis
Tx Fault
RD
-
RD+
LOS
Tx Coupling Unit
Single Mode Fiber
LEN
Monitor
Automatic
Shut-Down
EEPROM
MOD-DEF
File: 1353
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