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Fiber Optics
V23818-K15-B57 SFP - Small Form-factor Pluggable Single Mode 1300 nm 1.0625 Gbit/s Fibre Channel 1.25 Gigabit Ethernet Transceiver with LCTM Connector
Features * Small Form-factor Pluggable (SFP) transceiver * Fully SFP MSA compliant1) * Advanced release mechanism - Easy access, even in belly to belly applications - Grip for easy access - no tool is needed - Color coded blue (single mode) File: 1115 * 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
LCTM is a trademark of Lucent
Data Sheet
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V23818-K15-B57
Pin Configuration Pin Configuration
20 19 18 17 16 15 14 13 12 11
VEET TD- TD+ VEET VCCT VCCR VEER RD+ RD- VEER
1 2 3 4 5 6 7 8 9 10
VEET Tx Fault Tx Disable MOD-DEF(2) MOD-DEF(1) MOD-DEF(0) Rate Select LOS VEER VEER
Top of transceiver
Bottom of transceiver (as viewed through top of transceiver)
File: 1306
Figure 1
SFP Transceiver Electrical Pad Layout
Data Sheet
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Pin Configuration Pin Description Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
1) 2) 3) 4) 5) 6) 7)
Name
Logic Level N/A LVTTL LVTTL LVTTL LVTTL N/A N/A LVTTL N/A N/A N/A LVPECL LVPECL N/A N/A N/A N/A LVPECL LVPECL N/A
Function Transmitter Ground1) Transmitter Fault Indication2) 8) Transmitter Disable3) Module Definition 24) 8) Module Definition 15) 8) Module Definition 06) 8) Not connected Loss Of Signal7) 8) Receiver Ground1) Receiver Ground1) Receiver Ground1) Inv. Received Data Out9) Received Data Out9) Receiver Ground1) Receiver Power Transmitter Power Transmitter Ground1) Transmit Data In10) Inv. Transmit Data In10) Transmitter Ground1)
VEET
Tx Fault Tx Disable MOD-DEF(2) MOD-DEF(1) MOD-DEF(0) Rate Select LOS
VEER VEER VEER
RD- RD+
VEER VCCR VCCT VEET
TD+ TD-
VEET
8) 9) 10)
Common transmitter and receiver ground within the module. A high signal indicates a laser fault of some kind and that laser is switched off. A low signal switches the transmitter on. A high signal or when not connected switches the transmitter off. MOD-DEF(2) is the data line of two wire serial interface for serial ID. MOD-DEF(1) is the clock line of two wire serial interface for serial ID. MOD-DEF(0) is grounded by the module to indicate that the module is present. 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. Should be pulled up on host board to VCC by 4.7 - 10 k. AC coupled inside the transceiver. Must be terminated with 100 differential at the user SERDES. AC coupled and 100 differential termination inside the transceiver.
Data Sheet
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Description 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. Link Length as Defined by IEEE and Fibre Channel Standards Fiber Type min.1) at 1.0625 Gbit/s 9 m, SMF 50 m, 500 MHz*km 62.5 m, 200 MHz*km at 1.25 Gbit/s 9 m, SMF 50 m, 400/500 MHz*km 62.5 m, 500 MHz*km
1)
Reach typ. max.2) 10,000 550 550 5,000 550 550
Unit
2 0.5 0.5 2 2 2
meters
meters
2)
Minimum reach as defined by IEEE and Fibre Channel Standards. A 0 m link length (loop-back connector) is supported. Maximum reach as defined by IEEE and Fibre Channel Standards. Longer reach possible depending upon link implementation.
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.
Data Sheet
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Description Functional Description of SFP Transceiver This transceiver is designed to transmit serial data via single mode cable.
Tx Fault Automatic Shut-Down TxDis LEN TD- TD+ Laser Driver Tx Coupling Unit e/o Laser
Power Control Monitor RD- RD+ LOS MOD-DEF
o/e Single Mode Fiber Rx Coupling Unit o/e
Receiver
EEPROM
File: 1353
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.
Data Sheet
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Description A low signal on TxDis enables transmitter. If TxDis is high or not connected the transmitter is disabled. The information which kind of SFP module has been plugged into an SFP port can be read through the MOD-DEF interface. The information is stored in an I2C-EEprom inside the SFP Transceiver. Regulatory Compliance Feature ESD: Electrostatic Discharge to the Electrical Pins Immunity: Against Electrostatic Discharge (ESD) to the Duplex LC Receptacle Immunity: Against Radio Frequency Electromagnetic Field Emission: Electromagnetic Interference (EMI) Standard EIA/JESD22-A114-B (MIL-STD 883D method 3015.7) EN 61000-4-2 IEC 61000-4-2 Comments Class 1C
Discharges ranging from 2 kV to 15 kV on the receptacle cause no damage to transceiver (under recommended conditions). With a field strength of 3 V/m, noise frequency ranges from 10 MHz to 2 GHz. No effect on transceiver performance between the specification limits. Noise frequency range: 30 MHz to 18 GHz
EN 61000-4-3 IEC 61000-4-3
FCC 47 CFR Part 15, Class B EN 55022 Class B CISPR 22
Data Sheet
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Technical Data Technical Data Absolute Maximum Ratings Parameter Package Power Dissipation Data Input Levels Differential Data Input Voltage Swing Storage Ambient Temperature Symbol Limit Values min. max. 0.9 W V V C V mA Unit
VCC+0.5 VIDpk-pk
-40 5 85 5.5 50
VCC max
ECL-Output Current Data
Exceeding any one of these values may destroy the device immediately. Recommended Operating Conditions Parameter Ambient Temperature Power Supply Voltage Transmitter Differential Data Input Voltage Swing Receiver Input Center Wavelength C 1260 1580 nm Symbol min. Limit Values typ. 3.3 max. 70 3.6 3200 C V mV 0 3.1 500 Unit
TAMB VCC-VEE VIDpk-pk
The electro-optical characteristics described in the following tables are valid only for use under the recommended operating conditions.
Data Sheet
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Technical Data Transmitter Electro-Optical Characteristics Transmitter Launched Power (Average) Center Wavelength Spectral Width (RMS) Relative Intensity Noise Extinction Ratio (Dynamic) Total Tx Jitter Optical Rise/Fall Time3) Reset Threshold 4) Reset Time Out 4) Supply Current
1) 2) 3) 4)
Symbol min.
1) 2)
Limit Values typ. max. -3 1350 2.5 -120 9 53 2.5 140 2.75 240 80 130 260 2.99 300 150 -9.5 180 1285
Unit dBm W nm nm dB/Hz dB ps ps V ms mA
PO
OMA C I RIN ER TJ tR, tF
Optical Modulation Amplitude
VTH tRES
Into single mode fiber, 9 m diameter. Fibre Channel PI Standard. Measured without filter (20% - 80%). Laser power is shut down if power supply is below VTH and switched on if power supply is above VTH after tRES.
Data Sheet
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Technical Data Receiver Electro-Optical Characteristics Receiver Sensitivity (Average Power) Min. Optical Modulation Amplitude 2) Loss Of Signal (LOS) Assert Level 3) Loss Of Signal (LOS) Deassert Level 4)
1)
Symbol min.
Limit Values typ. max. -20 -3 15 -37 -22 0.5 1 6 100 100 1.5 3 1200
Unit dBm dBm W dBm dBm dB s s GHz GHz mV dB
Saturation (Average Power)
PIN PSAT
OMA
PLOSA PLOSD
Loss Of Signal (LOS) Hysteresis PLOSA -PLOSD Loss Of Signal (LOS) Assert Time Loss Of Signal (LOS) Deassert Time Receiver 3 dB Cut-off Frequency 2) Receiver 10 dB Cut-off Frequency 2)
tASS tDAS
Differential Data Output Voltage VODpk-pk 600 Swing 5) Return Loss of Receiver Output Data Rise/Fall Time Supply Current 6)
1) 2) 3)
ORL
12 200 90 130
tR , tF
ps mA
4)
5)
6)
Minimum average optical power at which the BER is less than 1x10-12. Measured with a 27-1 NRZ PRBS. Fibre Channel PI Standard. An increase in optical power above the specified level will cause the LOS output to switch from a high state to a low state. A decrease in optical power below the specified level will cause the LOS to change from a low state to a high state. AC/AC for data. Load 50 to GND or 100 differential. For dynamic measurement a tolerance of 50 mV should be added. Supply current excluding Rx output load.
Data Sheet
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Technical Data Timing of Control and Status I/O Parameter Tx Disable Assert Time Symbol t_off Limit Values min. max. 10 s Time from rising edge of Tx Disable to when the optical output falls below 10% of nominal. Time from falling edge of Tx Disable to when the modulated optical output rises above 90% of nominal. From power on or negation of Tx Fault using Tx Disable. s Time from fault to Tx Fault on. Time Tx Disable must be held high to reset Tx Fault. 100 100 100 kHz Time from LOS state to Rx LOS assert. Time from non-LOS state to Rx LOS deassert. Unit Condition
Tx Disable Negate Time
t_on
1
ms
Time to Initialize, t_init Including Reset of Tx Fault Tx Fault Assert Time Tx Disable to Reset t_fault t_reset 10
300
100
LOS Assert Time t_loss_on LOS Deassert Time I2C Bus Clock Rate t_loss_off f_i2cbus_ clock
Data Sheet
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Eye Safety 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 operated within the Absolute Maximum Ratings. Attention: All adjustments have been made at the factory prior to shipment 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 modification 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 Wavelength Total Output Power (as defined by IEC: 7 mm aperture at 14 mm distance) Total Output Power (as defined by FDA: 7 mm aperture at 20 cm distance) Beam Divergence 1300 nm < 2 mW < 195 W 6
FDA
Complies with 21 CFR 1040.10 and 1040.11
IEC
Class 1 Laser Product
File: 1401
Figure 3
Required Labels
Indication of laser aperture and beam
20 Tx
Top view
Rx 11
File: 1333
Figure 4
Laser Emission
Data Sheet
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Application Notes Application Notes EMI-Recommendations To avoid electromagnetic radiation exceeding the required limits please take note of the following recommendations. When Gigabit switching components are found on a PCB (multiplexers, clock recoveries etc.) any opening of the chassis may produce radiation also at chassis slots other than that of the device itself. Thus every mechanical opening or aperture should be as small as possible. On the board itself every data connection should be an impedance matched line (e.g. strip line, coplanar strip line). Data, Datanot should be routed symmetrically, vias should be avoided. A terminating resistor of 100 should be placed at the end of each matched line. An alternative termination can be provided with a 50 resistor at each (D, Dn). In DC coupled systems a thevenin equivalent 50 resistance can be achieved as follows: for 3.3 V: 125 to VCC and 82 to VEE, for 5 V: 82 to VCC and 125 to VEE at Data and Datanot. Please consider whether there is an internal termination inside an IC or a transceiver. In certain cases signal GND is the most harmful source of radiation. Connecting chassis GND and signal GND at the plate/bezel/chassis rear e.g. by means of a fiber optic transceiver/cage may result in a large amount of radiation. Even a capacitive coupling between signal GND and chassis may be harmful if it is too close to an opening or an aperture. If a separation of signal GND and chassis GND is not planned, it is strongly recommended to provide a proper contact between signal GND and chassis GND at every location where possible. This concept is designed to avoid hotspots. Hotspots are places of highest radiation which could be generated if only a few connections between signal and chassis GND exist. Compensation currents would concentrate at these connections, causing radiation. By use of Gigabit switching components in a design, the return path of the RF current must also be considered. Thus a split GND plane of Tx and Rx portion may result in severe EMI problems. The cutout should be sized so that all contact springs of the cage make good contact with the face plate. For the SFP transceiver a connection of the SFP cage pins to chassis GND is recommended. If no separate chassis GND is available on the users PCB the pins should be connected to signal GND. In this case take care of the notes above. Please consider that the PCB may behave like a waveguide. With an r of 4, the wavelength of the harmonics inside the PCB will be half of that in free space. In this scenario even the smallest PCBs may have unexpected resonances.
Data Sheet
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Application Notes The SFP transceiver can be assembled onto the host board together with all cages and host board connectors complying with the SFP multi source agreement. Infineon Proposes Cage: Infineon Technologies Part Number: V23838-S5-N1 Host board connector: Tyco Electronics Part Number: 1367073-1
Cage SFP Host board connector
File: 1502
Figure 5
Data Sheet
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Application Notes Handling Notes
INSTALLING
FRONT BEZEL SFP CAGE DOOR IS CLOSED
PUSH
HOST PCB
REMOVING
FRONT BEZEL SFP CAGE STEP 1
RO TA T
DOOR HOST PCB
E
90
STEP 2
PULL
File: 1504
Figure 6
Installing and Removing of SFP-Transceiver
Data Sheet
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Application Notes EEPROM Serial ID Memory Contents
Data Address 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - 35 36 37 - 39 40 - 55 56 57 - 59 60 - 61 62 63 64 65 66 67 68 - 83 84 - 91 92 - 94 95 96 - 127
Data Sheet
Hex 03 04 07 00 00 00 02 12 00 0D 01 01 0D 00 0A 64 37 37 00 00 00
00 00 1A 69 55
00
MSA Name/Description Transceiver type Extended identifier Connector type Reserved SONET OC-48 SONET OC-3/12 Gigabit Ethernet FC reach/technology FC technology FC media FC speed Encoding Nominal bit rate Reserved Length (9 m) x 1 km Length (9 m) x 100 m Length (50 m) x 10 m Length (62.5 m) x 10 m Length (copper) x 1 m Reserved Vendor name Reserved Vendor IEEE OUI Vendor part number Vendor revision Vendor revision Wavelength Reserved Check code (0 to 62) Reserved Transceiver options Upper bit rate margin (%) Lower bit rate margin (%) Vendor serial number Vendor date code Diagnostic / SFF-8472 compliance Check code (64-94) Vendor specific data
15
Content/Value SFP Serial ID LC
Infineon AG 00-03-19 V23818-K15-B57 Infineon production code 1.0 1310
Tx Disable, Tx Fault, LOS
Not implemented
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V23818-K15-B57
Application Notes Single Mode 1300 nm SFP Transceiver, AC/AC TTL
1 H
VCCT
xx 1) 0.1 F
VEET
1 H
1) Design criterion of the capacitor used is the resonant frequency and its value must be in the order of the nominal data rate. Use of single layer capacitors recommended. Short trace lengths are mandatory.
3.3 V
VCCR
xx 1) 0.1 F 10 F 0.1 F 10 F
VEER
SFP Module
Host Board
File: 1304
Figure 7
Recommended Host Board Supply Filtering Network
3.3 V
1 H
Infineon SFP Transceiver
16
xx 1) 0.1 F
Protocol VCC Protocol VCC
4.7 to 10 k
10 F
0.1 F
1 H
VCCT 17
4.7 to 10 k
Tx Disable Tx Fault
Tx Disable Tx Fault TD-
0.01 F
100
Laser Driver
TD+ VEET 15
0.01 F
Protocol IC
SerDes IC
4.7 to 10 k
xx 1) 10 F 0.1 F
VCCR 14
RD+
100
0.01 F
RD- LOS 3.3 V VEER
4.7 to 10 k 4.7 to 10 k 4.7 to 10 k
0.01 F
Preamp & Quantizer
LOS
PLD / PAL
MOD-DEF(0)
MOD-DEF(1)
MOD-DEF(2)
1) Design criterion of the capacitor used is the resonant frequency and its value must be in the order of the nominal data rate. Use of single layer capacitors recommended. Short trace lengths are mandatory.
File: 1305
Figure 8
Data Sheet
Example SFP Host Board Schematic
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Package Outlines Package Outlines
55.9 [2.200]
16.1 REF [.636]
13.7 [.538]
12.5 [.492]
6.25 [.246]
10.4 [.411]
Dimensions in mm [inches]
File: 1207
Figure 9
Data Sheet
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8.5 [.334]
13.4 [.528]
V23818-K15-B57 Revision History: Previous Version: Page 2003-04-25 2002-05-06 DS1
Subjects (major changes since last revision) Document completely revised
For questions on technology, delivery and prices please contact the Infineon Technologies Offices in Germany or the Infineon Technologies Companies and Representatives worldwide: see our webpage at http://www.infineon.com.
Edition 2003-04-25 Published by Infineon Technologies AG, St.-Martin-Strasse 53, D-81541 Munchen, Germany
(c) Infineon Technologies AG 2003.
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. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide. Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. 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.

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