2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Features • Duplex LC Single Mode Transceiver • Small Form Factor Multi-sourced 2x5 Pin Package • Complies with SONET OC48 / SDH STM-16 • 1310 nm / 1550 nm Wavelength, DFB Laser • Single +3.3V Power Supply • LVPECL / CML Differential Inputs and Outputs • LVTTL Signal Detection Output (C-1X-2500C-FDFB-SLC4) • LVPECL Signal Detection Output (C-1X-2500-FDFB-SLC4) • LVTTL Tx Disable Input • Temperature Range: 0 to 70 ºC • Class 1 Laser International Safety Standard IEC 825 Compliant • Solderability to MIL-STD-883, Method 2003 • Pin Coating is Sn / Pb with minimum 2% Pb content • Flammability to UL94V0 • Humidity RH 5-85% (5-95% short term) to IEC 68-2-3 • Complies with Bell core GR-468 • Uncooled laser diode with MQW structure Absolute Maximum Rating Parameter Symbol Min. Max. Power Supply Voltage Vcc 0 3.6 V Output Current Iout 0 30 mA - - 260 ºC Tstg -40 85 ºC Soldering Temperature Storage Temperature Unit Note 10 seconds on leads only Recommended Operating Condition Parameter Symbol Min. Typ. Max. Power Supply Voltage Vcc 3.1 3.3 3.5 V Operating Temperature Topr 0 - 70 ºC - 2488 - Mbps Notes Data rate Unit Transmitter Specifications Parameter Symbol Min Typical Max Unit Optical Transmit Power Po 0 - +5 dBm Output center Wavelength λ 1260 1310 1360 nm C-13-2500(C)-FDFB-SLC4 Output center Wavelength λ 1500 1550 1580 nm C-15-2500(C)-FDFB-SLC4 ∆λ - - 1 nm -20 dB width CW, Po=5mW Optical Output Spectrum Width Side Mode Suppression Ratio Sr 30 35 - dBm Extinction Ratio ER 8.2 - - dB Output Eye Compliant with GR-253-CORE Optical Rise Time tr - - 130 ps 20% to 80% Values Optical Fall Time tf - - 130 ps 20% to 80% Values RIN - - -120 dB/Hz TJ - - 0.18 ns Relative Intensity Noise Total Jitter LUMINENTOIC.COM Measured with 223-1 PRBS with 72 ones and 72 zeros 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 1 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Transmitter Specifications Parameter Symbol Min Typical Max Unit Icc - - 160 mA Notes Electrical Power Supply Current Maximum current is specified at Vcc= Maximum @ maximum temperature TX_DISABLE Input Voltage-Low VIL 0 - 0.8 V Transmitter on TX_DISABLE Input Voltage-High VIH 2 - Vcc V Transmitter Disabled Data Input Voltage-Single Ended VDIN 250 1200 mV (p-p) Symbol Min Typical Max Unit - - - -20 dBm Maximum Input Power Pin 0 - - dBm Signal Detect-Asserted Pa - - -20 dBm Measured on transition: low to high Signal Detect-Deasserted Pd -38 - - dBm Measured on transition: high to low Signal Detect-Hysteresis Pa-Pd AC coupled inputs Receiver Specifications Parameter Notes Optical Sensitivity Measured with 223-1 PRBS, BER = 10 -10 1 - - dB 1100 - 1600 nm - - -27 dB Symbol Min Typical Max Unit ICC - - 100 mA The current excludes the output load current AC coupled Wavelength of Operation Reflectance Receiver Specifications Parameter Note Electrical Power Supply Current Data Output Voltage-Single-ended VOH- VoL 300 - 900 mV Signal Detect Output Voltage-Low VSDL-Vcc -2.0 - -1.58 V Signal Detect Output Voltage-High VSDH- Vcc -1.1 - -0.74 V Signal Detect Output Voltage-Low VSDL-Vcc - - 0.5 V Signal Detect Output Voltage-High VSDH- Vcc 2.0 - - V LUMINENTOIC.COM C-1X-2500-FDFB-SLC4 C-1X-2500C-FDFB-SLC4 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 2 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Connection Diagram Legal Notice PIN Symbol Notes 1 RxGND 2 TxVcc Directly connect this pin to the receiver ground plane 3 SD Active high on this indicates a received optical signal(LVPECL/LVTTL) 4 RD- Receiver Data Out Bar (LVPECL) 5 RD+ Receiver Dat Out (LVPECL) +3.3 V dc power for the receiver section 6 TxVcc 7 TxGND 8 TxDIS 9 TD+ Transmitter Data In (LVPECL) 10 TD- Transmitter Data In Bar (LVPECL) Attaching Posts LUMINENTOIC.COM +3.3 V dc power for the transmitter section Directly connect this pin to the transmitter ground plane Transmitter disable (LVTTL) The attaching posts are at case potential and may be connected to chassis ground. They are isolated from circuit ground. 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 3 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Recommended Circuit Schematic Inputs to the C-1X-2500(C)-FDFB-SLC4 series transmitters are AC coupled and internally terminated through 50 ohms to AC ground. These transceivers can operate with LVPECL or CML logic levels. The input signal must have at least a 200 mV peak to (single ended) signal swing. Output from the receiver section of the module is also AC coupled and is expected to drive into 50 ohm load. Different termination strategies may be required depending on the particular Serializer / Deserializer chip set used. The C-1X-2500(C)-FDFB-SLC4 series product family are designed with AC coupled data inputs and outputs to provide the following advantages: ■ Close positioning of SERDES with respect to transceiver; allows for shorter line lengths and at gigabit speeds reduces EMI. ■ Minimum number of external components. ■ Internal termination reduces the potential for unterminated stubs which would otherwise increase jitter and reduce transmission margin. Figure 1 & Figure 2 illustrates the recommended transmit and receive data line trminations for SERDES with CML and LVPECL Inputs / Outputs respectively. TTL logic level Serializer / De-Serializer with CML lnputs/Outputs Figure 1.Recommended TRANSMIT and RECEIVE Data Terminations for SERDES with CML I/Os. Note 1. Consult SERDES manufacturer’s data sheet and application data for appropriate receiver input biasing network. Some deserializer inputs are internally terminated and may not need external termination resistors. LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 4 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 TTL logic level TRANSMITTER o t N 1 e No t e 1 Serializer / De-Serializer with LVPECL lnputs/Outputs Vcc= +3.3V 82Ω 82Ω 130Ω 130Ω Figure 2.Recommended TRANSMIT and RECEIVE Data Terminations for SERDES with LVPRCL I/Os. Note 1. Consult SERDES manufacturer’s application information for biasing required for Tx outputs. Some serializer outputs are internally biased and may not need external bias resistors. Signal Detect The C-1X-2500(C)-FDFB-SLC4 transceivers are equipped with LVTTL / LVPECL signal detect outputs. The standard LVTTL output eliminates the need for a LVPECL to LVTTL level shifter in most in most applications. R2 LVPECL or LVTTL Logic R1 R: For LVTTL level R1=N.C., R2=N.C. LVPECL level R1=82,R2=130 Figure 3: Signal Detect LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 5 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Power Coupling A suggested layout for power and ground connections is given in figure 4B below. Connections are made via separate voltage and ground planes. The mounting posts are at case ground and should not be connected to circuit ground. The mounting posts are at case ground and should not be connected to circuit ground. The ferrite bead should provide a real impedance of 50 to 100 ohms at 100 to 1000 MHz. Bypass capacitors should be placed as close to the 10-pin connector as possible. L2 Vcc L1 C1 C3 C4 C2 VALUES: C1, C2 = 1000pF, C3, = 0.1 uF C4, = 10 uF, L1, L2 = Real impednce of 50 to 100 Ohms to 1000 MHz. Figure 4A: Suggested Power Coupling-Electrical Schematic L1 C2 TOP VIEW C3 C4 C1 VALUES: C1, C2 = 1000pF, C3, = 0.1uF C4, = 10uF, L1, L2 = Real impedance of 50 to 100 Ohms to 1000MHz. L2 NOTE : 1.) Components shown ore placed on the bottom layer and are viewed through the board. LEHEND: Vcc PLANE CONNECTION CIRCUIT GROUND PLANE CONNECTION CASE GROUND Figure 4B: Suggested Power Coupling-Component Placement LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 6 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Printed Circuit Board Layout Consideration A fiber-optic receiver employs a very high gain, wide bandwidth transimpedance amplifier. This amplifier detects and amplifies signals that are only tens of nA in amplitude when the receiver is operating near its limit. Any unwanted signal currents that couple into the receiver circuitry causes a decrease in the receiver’s sensitivity and can also degrades the of the receiver’s signal detect (SD) circuit. To minimize the coupling of unwanted noise into the receiver, careful attention must be given to the printed circuit board. At a minimum, a double-sided printed circuit board (PCB) with a large component side ground plane beneath the transceiver must be used. In applications that include many other high speed devices, a multi-layer PCB is highly recommended. This permits the placement of power and ground on separate layers, which all them to be isolated from the signal lines. Multilayer construction also permits the routing of signal traces away from high level, high speed signal lines. To minimize the possibility of coupling noise into the receiver section, high level, high speed signals such as transmitter inputs and clock lines should be routed as far away as possible from the receiver pins. Noise that couples into the receiver through the power supply pins can also degrade performance. It is recommended that a pi filter in both the transmitter and receiver power supplies. EMI and ESC Consideration LuminentOIC transceivers offer a metalized plastic case and a special chassis grounding clip. As shown in the drawing, this clip connects the module case to chassis ground then installed flush through the panel cutout. The grounding clip in this way brushes the edge of the cutout in order to make a proper contact. The use of a grounding clip also provides increased electrostatic protection and helps reduce radiated emissions from the module or the host circuit board through the chassis faceplate. The attaching posts are at case potential and may be connected to chassis ground. They should not be connected to circuit ground. Plastic optical subassemblies are used to further reduce the possibility of radiated emissions by eliminating the metal from the transmitter and receiver diode housings, which extend into connector space. By providing a non-metal receptacle for the optical cable ferrule, the gigabit speed RF electrical signal is isolated form the connector area thus preventing radiated energy leakage from these surfaces to the outside of the panel. Laser Safety This single mode transceiver is a Class1 laser product. It complies with IEC 825 and FDA 21 CFR 1040.10 and 1040.11.The transceiver must be operated within the specified temperature and voltage limits. The optical ports of the module shall determinate with an optical connector or with a dust plug. LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 7 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Package Diagram Units: mm (inches) (0.400) ) (0.535) +( -(0.004) (0.520) (0.) ) (1.921) +( -(0.008) (0.150) (0.020) (0.039)±(0.002) (0.070) (0.280) (0.386) ) (0.386) +( -(0.004) (0.413) (0.374) (0.) (0.) (0.) (0.086) (0.) (0.246) (0.200) (0.700) LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 8 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Recommended Board Layout Hole Pattern DIMENSION IN MILLIMETER (INCHES) NOTES: 1.THIS FIGURE DESCRIBE THE RECOMMAND CIRCUIT BOARD LAYOUT FOR THE SFF TRANSCEIVER. 2.THE HATCHED AREAS ARE KEEP-OUT AREAS RESERVED FOR HOUSING STANDOFF. NO METAL TRACES OR GROUND CONNECTION IN KEEP-OUT AREAS. 3.THE MOUNTING STUDS SHOULD BE SOLDERED TO CHASSIS GROUND FOR MECHANICAL INTEGRITY. Recommended Panel mounting DIMENSION IN MILLIMETER (INCHES) LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 9 LUMNDS814-Apr2605 rev. A.0 2.5 Gbps Single Mode SFF LC Transceiver C-1X-2500(C)-FDFB-SLC4 Ordering Information Available Options: C-13-2500-FDFB-SLC4 C-13-2500C-FDFB-SLC4 C-15-2500-FDFB-SLC4 C-15-2500C-FDFB-SLC4 Part numbering Definition: C - 1X - 2500(C) - FDFB - S LC 4 • 13 = Wavelength 1310 nm 15 = Wavelength 1550 nm • Communication protocol 2500 = LVPEVL SD Output 2500C = LVTTL SD Output • +3.3V SFF Transceiver, DFB • Single mode fiber • Connector options • 4 = Tx Power 0 to +5 dBm Warnings: Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static free environment is highly recommended. Follow guidelines according to proper ESD procedures. Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation. Legal Notes: IMPORTANT NOTICE! All information contained in this document is subject to change without notice, at LuminentOIC’s sole and absolute discretion. LuminentOIC warrants performance of its products to current specifications only in accordance with the company’s standard one-year warranty; however, specifications designated as “preliminary” are given to describe components only, and LuminentOIC expressly disclaims any and all warranties for said products, including express, implied, and statutory warranties, warranties of merchantability, fitness for a particular purpose, and non-infringement of proprietary rights. Please refer to the company’s Terms and Conditions of Sale for further warranty information. LuminentOIC assumes no liability for applications assistance, customer product design, software performance, or infringement of patents, services, or intellectual property described herein. No license, either express or implied, is granted under any patent right, copyright, or intellectual property right, and LuminentOIC makes no representations or warranties that the product(s) described herein are free from patent, copyright, or intellectual property rights. Products described in this document are NOT intended for use in implantation or other life support applications where malfunction may result in injury or death to persons. LuminentOIC customers using or selling products for use in such applications do so at their own risk and agree to fully defend and indemnify LuminentOIC for any damages resulting from such use or sale. THE INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED ON AN “AS IS” BASIS. Customer agrees that LuminentOIC is not liable for any actual, consequential, exemplary, or other damages arising directly or indirectly from any use of the information contained in this document. Customer must contact LuminentOIC to obtain the latest version of this publication to verify, before placing any order, that the information contained herein is current. © LuminentOIC, Inc. 2003 All rights reserved LUMINENTOIC.COM 20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486 9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213 10 LUMNDS814-Apr2605 rev. A.0