V23818-M305-L58(*) Small Form Factor Multimode 850 nm 2.125 and 1.0625 GBd Fibre Channel 2x6 Transceiver with LC™ Connector Dimensions in mm [inches] V23 818 -M3 05-L 58 FEATURES • Small Form Factor transceiver • Full compliant with Fibre Channel • Data rate autonegotiation between 1.0625 and 2.125 GBd • Features Laser Fault (LF) function • Excellent EMI performance • RJ-45 style LC™ connector system • • • • • • • • • • • • • Half the size of SC Duplex 1x9 transceiver Single power supply (3.3 V) Extremely low power consumption of 445 mW typical PECL and LVPECL differential inputs and outputs System optimized for 62.5/50 µm graded index fiber Multisource 2x5 footprint Small size for high port density 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 550 m Class 1 FDA and IEC laser safety compliant AC/AC coupling in accordance to SFF MSA *) Ordering Information Input Output Signal detect Voltage Part Number AC AC 3.3 V V23818-M305-L58 TTL LC™ is a trademark of Lucent Fiber Optics MARCH 2002 Absolute Maximum Ratings Functional Description of 2x6 Pin Row Transceiver Exceeding any one of these values may destroy the device immediately. This transceiver is designed to transmit serial data via multimode cable. Package Power Dissipation................................................0.5 W Data Input Levels (PECL) ............................................VCC+0.5 V Differential Data Input Voltage ............................................ 2.5 V Operating Case Temperature..............................–10°C to 85° C Storage Ambient Temperature............................. –40° C to 85°C Soldering Conditions, Temp/Time (MIL-STD 883C, Method 2003) ........................... 250°C/ 5.5 s VCC max.............................................................................. 5.5 V ECL-Output current data ...................................................50 mA Functional Diagram LF Automatic Shut-Down TxDis LEN TD− TD+ Laser Driver Laser Coupling Unit e/o Laser DESCRIPTION Power Control The Infineon Fibre Channel multimode transceiver – part of Infineon Small Form Factor transceiver family – is based on the Physical Medium Depend (PMD) sublayer and baseband medium, type (short wavelength), Fibre Channel DC 200-M5-SN-I and 200-M6-SN-I, DC 100-M5-SN-I and 100-M6-SN-I. o/e Multimode Fiber Monitor RD− RD+ SD Receiver Rx Coupling Unit o/e The appropriate fiber optic cable is 62.5 µm or 50 µm multimode fiber with LC™ connector. The receiver component converts the optical serial data into PECL compatible electrical data (RD+ and RD–). The Signal Detect (SD, active high) shows whether an optical signal is present. Operating range over each optical fiber type at 2.125 GBd Fiber type Min. (meters) Typ. (meters) Max. (meters) 62.5 micron MMF 0.5 2 to 150 300 50.0 micron MMF 0.5 2 to 300 500 The transmitter converts PECL compatible electrical serial data (TD+ and TD–) into optical serial data. Data lines are differentially 100 Ω 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. Operating range over each optical fiber type at 1.0625 GBd Fiber type Min. (meters) Typ. (meters) Max. (meters) 62.5 micron MMF 0.5 2 to 300 400 50.0 micron MMF 0.5 2 to 550 700 The Infineon Fibre Channel multimode transceiver is a single unit comprised of a transmitter, a receiver, and an LC™ receptacle. This design frees the customer from many alignment and PC board layout concerns. 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. This transceiver supports the LC™ connectorization concept. It is compatible with RJ-45 style backpanels for high end Data Com and Telecom applications while providing the advantages of fiber optic technology. 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. The module is designed for low cost SAN, LAN, WAN, Fibre Channel 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. A low signal on TxDis enables transmitter. If TxDis is high the transmitter is disabled. The bandwidth of the receiver can be selected by toggling the RS Input. This transceiver operates at 1.0625 / 2.125 Gbit/s from a single power supply (+3.3 V). The full differential data inputs and outputs are PECL and LVPECL compatible. Fiber Optics V23818-M305-L58, SFF, MM 850nm 2.125 GBd Fibre Channel, 2x6 Trx (LC™) 2 TECHNICAL DATA The electro-optical characteristics described in the following tables are valid only for use under the recommended operating conditions. Receiver Electro-Optical Characteristics Receiver Sensitivity (Average Power)(1) Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Units Case Temperature TC –10 85 °C Power Supply Voltage VCC– VEE 3.1 3.5 V VDIFF 250 2400 mV 3.3 λC Input Center Wavelength 770 860 nm Transmitter Electro-Optical Characteristics Transmitter Symbol Min. Typ. Max. Units Launched Power (Average)(1) PO –9.5 –6 OMA 196 450 156 450 Optical Modulation Amplitude(3) 2.125 Gbit/s 1.0625 Gbit/s –4 dBm µW Center Wavelength λC Spectral Width (RMS) σl 0.85 Relative Intensity Noise RIN –117 dB/Hz Extinction Ratio (Dynamic) ER 9 13 dB Reset Threshold(2) VTH 2.5 2.75 2.99 V tRES 140 240 560 ms 130 150 ps 45 65 mA Reset Time Out(2) Rise Time, 20%–80% Supply Current tR 830 850 860 nm Notes 1. Into multimode fiber, 62.5 µm or 50 µm diameter. 2. Laser power is shut down if power supply is below VTH and switched on if power supply is above VTH after tRES. 3. Fibre Channel PI Standard. Max. Units PIN –18.5 –16 –19 –17 24 49 19 31 Stressed Receiv- 2.125 SPIN Gbit/s er Sensitivity 50 µm Fiber(7) 1.0625 Gbit/s 29 96 24 55 Stressed Receiv- 2.125 SPIN er Sensitivity Gbit/s 62.5 µm Fiber(7) 1.0625 Gbit/s 34 109 32 67 Signal Detect Assert Level(2) PSDA –21 –18 Signal Detect Deassert Level(3) PSDD –30 –22 Signal Detect Hysteresis PSDA– PSDD 0.5 1 Signal Detect Assert Time tASS 100 Signal Detect Deassert Time tDAS 350 Min. Optical Modulation Amplitude(6) Receiver Typ. 1.0625 Gbit/s Saturation (Average Power) Transmitter Data Input Differential Voltage 2.125 Gbit/s Symbol Min. PSAT 2.125 Gbit/s dBm 0 OMA 1.0625 Gbit/s 2.5 Receiver 10 dB cut-off Frequency(6) 6 VDIFF 0.5 Return Loss of Receiver ARL 12 Supply current(5) ICCRX 0.7 dBm dB Receiver 3 dB cut-off Frequency(6) Data Output Differential Voltage(4) µW 1.23 µs GHz V dB 80 90 mA Notes 1. Average optical power at which the BER is 1x10–12. Measured with a 27–1 NRZ PRBS and ER=9 dB. 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. AC/AC for data. Load 50 Ω to GND or 100 Ω differential. For dynamic measurement a tolerance of 50 mV should be added. 5. Supply current excluding Rx output load. 6. Fibre Channel PI Standard. 7. Measured at the given Stressed Receiver Eyeclosure Penalty and DCD component given in Fibre Channel PI Standard (2.03/2.18 dB & 40/80 ps). Fiber Optics V23818-M305-L58, SFF, MM 850nm 2.125 GBd Fibre Channel, 2x6 Trx (LC™) 3 Pin Description Pin Name Level/ Pin# Description Logic RS Rate Select TTL 1 VEEr Receiver Signal Ground N/A 2 VCCr Receiver Power Supply N/A 3 SD Signal Detect TTL 4 RD– Received Data PECL Out Not 5 RD+ Received Data PECL Out 6 not connected Normal Operation: Logic “1” Output, represents that light is present at receiver input Fault Condition: Logic “0” Output Feature Standard Comments Immunity: Against Electrostatic Discharge (ESD) to the Duplex LC Receptacle EN 61000-4-2 IEC 61000-4-2 Discharges ranging from ±2 kV to ±15 kV on the receptacle cause no damage to transceiver (under recommended conditions). Immunity: EN 61000-4-3 Against Radio Fre- IEC 61000-4-3 quency Electromagnetic Field With a field strength of 3 V/m rms, noise frequency ranges from 10 MHz to 2 GHz. No effect on transceiver performance between the specification limits. Emission: FCC 47 CFR Part 15, Noise frequency Electromagnetic Class B range: Interference (EMI) EN 55022 Class B 30 MHz to 18 GHz CISPR 22 VCCt N/A 7 Transmitter Power Supply EYE SAFETY VEEt N/A 8 Transmitter Signal Ground 9 A low signal switches the laser on. A high signal switches the laser off. This laser based multimode transceiver is a Class 1 product. It complies with IEC 60825-1 and FDA 21 CFR 1040.10 and 1040.11. TxDis Transmitter TTL Disable/Enable Input TD+ Transmit Data PECL 10 Transmitter Data In TD– Transmit Data Not PECL 11 Transmitter Data In LF Laser Fault TTL 12 MS Mounting Studs N/A MS1 Mounting Studs are proMS2 vided for transceiver mechanical attachment to the circuit board. They also provide an optional connection of the transceiver to the equipment chassis ground. HL Housing Leads N/A HL1 HL2 HL3 HL4 To meet laser safety requirements the transceiver shall be operated within the Absolute Maximum Ratings. Caution 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. Logical 1 indicates that Laser Shut-Down is active. 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 The transceiver Housing Leads are provided for additional signal grounding. The holes in the circuit board must be included and be tied to signal ground. (See Application Notes). Pin Information Tx 850 nm Total output power (as defined by IEC: 7 mm aperture at 1.4 cm distance) <400 µW Total output power (as defined by FDA: 7 mm aperture at 20 cm distance) <70 µW Beam divergence 12° Required Labels MS2 HL3 HL4 MS1 HL1 FDA IEC Complies with 21 CFR 1040.10 and 1040.11 Class 1 Laser Product 12 11 10 9 8 7 12-PIN MODULE - TOP VIEW Rx Wavelength 1 2 3 4 5 6 HL2 Regulatory Compliance Laser Emission Feature Standard Comments ESD: Electrostatic Discharge to the Electrical Pins EIA/JESD22-A114-A (MIL-STD 883D Method 3015.7) Class 1 (>1000 V) Indication of laser aperture and beam Tx Rx Fiber Optics 12 11 10 9 8 7 1 2 3 4 5 6 V23818-M305-L58, SFF, MM 850nm 2.125 GBd Fibre Channel, 2x6 Trx (LC™) 4 APPLICATION NOTES Small Form Factor Pinning Comparison The drawing below gives you a comparison between the different pinnings 2x5, 2x6, 2x10. Dimension for diameter and distance of additional pins is similar to the existing dimensions of the other pins. TOP VIEW RX RX VEE 1 RX VCC 2 SD 3 RXD - 4 RXD + 5 RS 1 RX VEE 2 RX VCC 3 SD 4 RXD - 5 RXD + 6 TX 20 P MON + 19 P MON 18 BIAS MON + 17 BIAS MON 16 TX VEE 15 TXD 14 TXD + 13 TX DIS 12 TX VEE 11 TX VCC VCC PIN 1 RX VEE 2 RX VEE 3 RX CLK - 4 RX CLK + 5 RX VEE 6 RX VCC 7 SD 8 RXD - 9 RXD + 10 12 LASER FAULT 11 TXD 10 TXD + 9 TX DIS 8 TX VEE 7 TX VCC 10 TXD 9 TXD + 8 TX DIS 7 TX VEE 6 TX VCC 2 x 10 2x6 2x5 Pin Description If a separation of signal GND and chassis GND is not possible, 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. RAS pin The RS Rate Select: is not connected. LF pin The LF pin (Laser Fault) is a TTL output of the Laser Driver Supervisor Circuit. A Logic “1” level can be measured in case of a laser fault. It will not show a fault if the laser is being disabled using the TxDis input, since this is not a fault condition. 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. EMI-Recommendation To avoid electromagnetic radiation exceeding the required limits please take note of the following recommendations. A recommendation is to connect the housing leads to signal GND. However, in certain applications it may improve EMI performance by connecting them to chassis GND. 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. The cutout should be sized so that all contact springs make good contact with the face plate. Please consider that the PCB may behave like a waveguide. With an εr 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. 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 Ω should be placed at the end of each matched line. An alternative termination can be provided with a 50 Ω resistor at each (D, Dn). In DC coupled systems a thevenin equivalent 50 Ω resistance can be achieved as follows: For 3.3 V: 125 Ω to VCC and 82 Ω to VEE, for 5 V: 82 Ω to VCC and 125 Ω to VEE at Data and Datanot. Please consider whether there is an internal termination inside an IC or a transceiver. Transceiver Pitch Dimensions in (mm) inches (13.97) *) .550 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 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. *) min. pitch between SFF transceiver according to MSA. Fiber Optics V23818-M305-L58, SFF, MM 850nm 2.125 GBd Fibre Channel, 2x6 Trx (LC™) 5 Multimode 850 nm Fibre Channel 2x6 Transceiver, AC/AC TTL VEEt VCC SerDes 3.3 V 8 VCC TD+ Tx+ ECL/PECL Driver 100 Ω Infineon Transceiver V23818-M305-L58 11 LF 12 TxDis 9 VCCt 7 Tx− VCC 3.3 V L1 R8 TD− R7 VCSEL Driver 10 Serializer/ Deserializer C1 VCCr L2 3 C3 Gigabit Transceiver Chip RD− RD+ VEEr R2 SD to upper level 5 RD− Receiver PLL etc. 6 RD+ 2 R4 Limiting Amplifier 4 TTL level R3 PreAmp SD R1 C2 Signal Detect C1/2/3 = 4.7 µF L1/2 = 1 µH R7/8 R1/2 = Depends on SerDes chip used Place R1/2/3/4/7/8 close to SerDes chip R3/4 = Depends on SerDes chip used Place R5/6 close to Infineon transceiver = Biasing (depends on SerDes chip) Values of R1/2/3/4 may vary as long as proper 50 Ω termination to VEE or 100 Ω 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 VCCRx/VCCTx. Published by Infineon Technologies AG Warnings © Infineon Technologies AG 2002 All Rights Reserved Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your Infineon Technologies offices. 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. 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 the Infineon Technologies offices or our Infineon Technologies Representatives worldwide - see our webpage at www.infineon.com/fiberoptics Infineon Technologies AG • Fiber Optics • Wernerwerkdamm 16 • Berlin D-13623, Germany Infineon Technologies, Inc. • Fiber Optics • 1730 North First Street • San Jose, CA 95112, USA Infineon Technologies K.K. • Fiber Optics • Takanawa Park Tower • 20-14, Higashi-Gotanda, 3-chome, Shinagawa-ku • Tokyo 141, Japan