V23818-K305-L56(*) Small Form Factor Multimode 850 nm 1.0625 GBd Fibre Channel 1.3 Gigabit Ethernet 2x5 Transceiver with LC™ Connector Extended Temperature Range (–40°C to 85°C) Preliminary Dimensions in [mm] inches Circuit Board Layout Recommended PCB Thickness: 0.1(2.54) max. 21.34 .840 8.17 .321 12.88 .507 1 1 0 0 +.00 .06 -.00 1.40 13.34 .525 6X (6X) 0.05M 1 10.16 .400 1 (10X) 0 0 +.00 .03 -.00 0.81 6.24 .246 20X 0 M 23.88 .940 1. 4 optional package grounding tabs 10 pin module requires only 12 PCB holes. 9.61 .378 13.43 .529 3.39 .134 12.88 .507 0.25 .010 1.78 .070 3.48 .137 0.48 .019 7.11 .280 47.65 1.876 V23818-K305-L56 17.78 .700 1.07 .042 4.57 .180 3.45 .136 18.59 .732 12.27 .483 12.70 .500 14.56 .573 8.92 .351 14.56 .573 *) Ordering Information V2 38 18 -K 30 5-L 56 Input Output Signal detect Voltage Part number AC AC 3.3 V V23818-K305-L56 TTL LC™ is a trademark of Lucent Fiber Optics MARCH 2001 FEATURES • Small Form Factor transceiver • RJ-45 style LC™ connector system • Half the size of SC Duplex 1x9 transceiver • Single power supply (3.3 V) • Extremely low power consumption • PECL and LVPECL differential inputs and outputs • System optimized for 62.5/50 µm graded index fiber • Multisource footprint • Small footprint for high channel density • UL-94 V-0 certified • ESD Class 1 per MIL-STD 883D Method 3015.7 • Compliant with FCC (Class B) and EN 55022 • For distances of up to 550 m • Class 1 FDA and IEC laser safety compliant • Extended Temperature Range –40°C to 85°C 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 and 1.25 Gbit/s from a single power supply (+3.3 V). The full differential data inputs and outputs are PECL and LVPECL compatible. Functional Description of 2x5 Pin Row Transceiver This transceiver is designed to transmit serial data via multimode cable. Functional Diagram Automatic Shut-Down Absolute Maximum Ratings TxDis LEN Exceeding any one of these values may destroy the device immediately. TD− TD+ Package Power Dissipation................................................ 1.5 W Data Input Levels (PECL) ............................................VCC+0.5 V Differential Data Input Voltage .............................................1.6 V Operating Case Temperature...............................–40°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 Laser Driver Power Control Laser Coupling Unit e/o Laser o/e Multimode Fiber Monitor RD− RD+ SD Receiver Rx Coupling Unit o/e DESCRIPTION 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 Infineon Gigabit Ethernet multimode transceiver – part of Infineon Small Form Factor transceiver family – is based on the Physical Medium Depend (PMD) sublayer and baseband medium, type 1000BASE-SX (short wavelength), Fibre Channel DC 100-M5-SN-I and 100-M6-SN-I. The transmitter converts PECL compatible electrical serial data (TD and TDnot) into optical serial data. Data lines are differentially 100 Ω terminated. The appropriate fiber optic cable is 62.5 µm or 50 µm multimode fiber with LC™ connector. 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. Operating range for over each optical fiber type Fiber type Minimum range (meters) Typ. 62.5 micron MFF 2 to 260 400 50.0 micron MFF 2 to 550 700 10 micron SFF Not supported 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. The Infineon Gigabit Ethernet 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 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. 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 laser can be disabled by the TxDis input. Fiber Optics V23818-K305-L56, SFF, MM 850nm 1.0625 GBd Fibre Channel, 1.3 GBE 2x5 Trx (LC™), ext.temp. 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 Recommended Operating Conditions Parameter Symbol Min. Case Temperature TC –40 Power Supply Voltage VCC–VEE 3.1 VDIFF 250 Typ. 3.3 λC 770 Typ. Max. Units Sensitivity (Average Power)(1) PIN –19 –16.5 dBm Saturation (Average Power) PSAT Signal Detect Assert Level(2) PSDA –24 –18 0 Units 85 °C 3.5 V Signal Detect Deassert Level(3) PSDD 1600 mV Signal Detect Hysteresis PSDA– PSDD Signal Detect Assert Time tASS 100 Signal Detect Deassert Time tDAS 350 Data Output Differential Voltage(4) VDIFF 0.5 Return Loss of Receiver ARL 12 Receiver Input Center Wavelength Symbol Min. Max. Transmitter Data Input Differential Voltage Receiver 860 nm Transmitter Electro-Optical Characteristics –30 –27 3 0.8 dB 1.23 µs V Transmitter Symbol Min. Typ. Max. Units Launched Power (Average)(1) PO –9.5 Center Wavelength λC 830 Spectral Width (RMS) σl 0.85 Notes Relative Intensity Noise RIN –117 dB/Hz 1. Average optical power at which the BER is 1 x 10E–12. Measured with a 27–1 NRZ PRBS and ER=9 dB. Extinction Ratio (Dynamic) ER 8 Threshold(2) VTH 2.2 2.7 2.99 V Reset Time Out(2) tRES 140 240 560 ms Rise Time, 20%–80% tR 0.26 ns Reset Supply Current 850 –4 dBm 860 nm Supply current(5) dB 75 dB 60 mA 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. mA 5. Supply current excluding Rx output load. 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. Fiber Optics V23818-K305-L56, SFF, MM 850nm 1.0625 GBd Fibre Channel, 1.3 GBE 2x5 Trx (LC™), ext.temp. 3 Pin Description EYE SAFETY VEEr Receiver Signal Ground N/A 1 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. VCCr Receiver Power Supply N/A 2 To meet laser safety requirements the transceiver shall be operated within the maximum operating limits. SD Signal Detect TTL 3 Pin Name Level/ Pin# Description Logic Caution Normal Operation: Logic “1” Output, represents that light is present at receiver input Fault Condition: Logic “0” Output 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 RD– Received Data Out Not PECL 4 RD+ Received Data Out PECL 5 VCCt N/A 6 Transmitter Power Supply VEEt N/A 7 Transmitter Signal Ground TxDis Transmitter TTLDisable/Enable Input 8 A low signal switches the laser on. A high signal switches the laser off. TD+ Transmit Data PECL 9 Transmitter Data In TD– Transmit Data Not PECL 10 Transmitter Data In MS MS Package Grounding Tabs N/A MS1 MS2 T1 T2 T3 T4 Mounting Studs and grounding Tabs are provided for transceiver mechanical attachment to the circuit board. They also provide an optional connection of the transceiver to the equipment chassis ground. The holes in the circuit board must be tied to chassis ground. 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 Standard Total output power (as defined by IEC: 7 mm aperture at 1.4 cm distance) <675 µW Total output power (as defined by FDA: 7 mm aperture at 20 cm distance) <70 µW Beam divergence 12° FDA IEC Complies with 21 CFR 1040.10 and 1040.11 Class 1 Laser Product Laser Emission Indication of laser aperture and beam Tx Rx Comments Electrostatic Discharge MIL-STD 883D (ESD) to the Electrical Method 3015.7 Pins Class 1 (>1000 V) Immunity: EN 61000-4-2 Electrostatic Discharge IEC 61000-4-2 (ESD) to the Duplex SC Receptacle Discharges of ±15 kV 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 3 V/m rms, noise frequency ranges from 10 MHz to 1 GHz. No effect on transceiver performance between the specification limits. Emission: Electromagnetic Interference (EMI) FCC Class B Noise frequency EN 55022 range: Class B CISPR 22 30 MHz to 6 GHz Fiber Optics 850 nm Required Labels Regulatory Compliance Feature Wavelength 10 9 8 7 6 1 2 3 4 5 V23818-K305-L56, SFF, MM 850nm 1.0625 GBd Fibre Channel, 1.3 GBE 2x5 Trx (LC™), ext.temp. 4 APPLICATION NOTES EMI-Recommendation ing nearby. Sometimes signal GND is the most harmful source of radiation. Connecting chassis GND and signal GND at the plate/ bezel/ backside wall e.g. by means of a fiber optic transceiver may result in a huge amount of radiation. Even a capacitive coupling between signal GND and chassis may be harmful if it is to close to an opening or an aperture. To avoid electromagnetic radiation exceeding the required limits please read the following recommendations: Whenever high speed Gigabit switching components are located on the PCB (also multiplexers, clock recoveries ...) any opening of the machine may generate radiation even at different locations. Thus every mechanical opening or aperture should be as small as possible. 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 almost every location. This concept is suitable to avoid hotspots. Hotspots are places of highest radiation which could be generated if only a few connections between signal and chassis GND are available. Compensation currents would concentrate at these connections, causing radiation. 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, via's should be avoided. A symmetrically matching 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 an artificial 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. For the SFF transceiver a connection of the 4 housing 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 εr of 4, the wavelength of the harmonics inside the PCB will be half of that in free space. In this case even small PCBs may have unexpected resonances. It is recommended that chassis GND and signal GND should remain separate if there are openings or apertures of the hous- Multimode 850 nm Gigabit Ethernet/Fibre Channel 2x5 Transceiver, AC/AC Infineon Transceiver V23818-K305-L56 TD+ 9 VCC SerDes 3.3 V VCC Tx+ ECL/PECL Driver TD- 10 TxDis 8 VCCt 6 VCCr 2 Tx- L1 VCC 3.3 V Serializer/ Deserializer C1 L2 C3 Gigabit Transceiver Chip C2 3 TTL level RD- RD+ VEEr 4 RDReceiver PLL etc. 5 RD+ 1 R3 Limiting Amplifier R2 SD to upper level R4 SD R1 Signal Detect PreAmp R8 100 Ω 7 R7 VCSEL Driver VEEt C1/2/3 = 4.7 µF L1/2 = 1 µH R7/8 = Biasing (depends on SerDes chip) 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 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 filtering is required for good EMI performance. Use short tracks from the inductor L1/L2 to the module VCCRx/VCCTx. Fiber Optics The transceiver contains an automatic shutdown circuit. Reset is only possible if the power is turned off, and then on again. (VCCTx switched below VTH). Application Board available on request. V23818-K305-L56, SFF, MM 850nm 1.0625 GBd Fibre Channel, 1.3 GBE 2x5 Trx (LC™), ext.temp. 5 Small Form Factor multisourcing footprint and dimensions Dimensions in (mm) inches 1. (7.11) .28 (4.57) .18 (0.9 max.) 4x ∅ .035 max. 2. 2. (3.56) .14 (13.59) Max. .535 (10.16) (13.34) .400 .53 (13.97) Min .550 Pitch 4x (1.78) .070 (17.78) .7 -B (12) .472 (7.75) .305 0 (1.07-0.1 ) 2x ∅ +.000 .042 -C - 1. 10x ∅ (47.65) max. 1.875 (37.56) 1.479 0 (0.61-0.2 ) .024 +.000 -.008 -.004 Circuit Board Layout Recommended PCB thickness: max. (2.54) 0.1 (6x) 2. 6x ∅ (1.4 ±0.1) ∅ 0.05 M .055 ±0.04 Holes for housing leads (7.11) .280 max. (9.8) Max. .386 -A 10x ∅ (0.81 ±0.1) .032 ±0.04 (3.1) .12 (10x) ∅0 MS2 T4 M T3 (3.0) .118 10 9 8 7 6 Tx 2x5 Pin Module Top View Rx MS1 1 2 3 4 5 T1 T2 1. Toleranced to accommodate round or rectangular leads 2. 4 optional package grounding tabs 10 pin module requires only 12 PCB holes. Published by Infineon Technologies AG Warnings © Infineon Technologies AG 2001 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