1 Technical Data Sheet August 2002 FIBEROPTICS DIVISION TR137FA-0D30S 622Mbps 1310nm Small Form Factor Pluggable(SFP) LC Duplex Single Mode Transceiver Features Links of 15km with 9/125µm single mode fiber 1.3µm InGaAsP MQW FP laser Highly sensitive InGaAs PIN Photodiode Operating temperature range of -40~85°C Single +3.3V power supply Supports serial ID Fully compatible MSA with LC duplex Receptacle AC coupled input and output data signal TTL Loss of Signal (LOS) Digital monitoring Function (LD bias current, LD power, PD received power, Temperature, and applied bias voltage) Applications SONET/SDH equipment interconnect, SONET OC-12 / SDH STM-4 rate, and Inter/intraoffice ATM/SONET links Product Code Product Code Extinction Ratio Output Power Distance TR137FA-0D30S ≥8.2dB -8 to -15dBm 15Km 2 Description Samsung's TR137FA-0D30S of small form factor pluggable transceiver are uncooled transceiver modules operated over the temperature range of -40°C to 85°C. These transceiver modules are designed for single mode fiber and operate at a nominal wavelength of 1300nm. They are incorporated with a high performance optical subassembly (OSA), a reliable circuit board (PCB) and a low cost plastic package. The transmitter section of TR137FA-0D30S is 1.3µm InGaAsP MQW Fabry Perot (FP) laser diode. The receiver section uses a highly sensitive InGaAs PIN photodiode. Transceiver also conforms to the industry SFP Multi-source agreement (MSA). For the good EMI performance, this transceiver uses the metal cover. This module will meet the growing demand on the optical network unit (ONU) for for access network and local area network (LAN) for SONET OC-12 and SDH STM-4. Pin Information Pin Symbol Sequence Type Functional Description 1 VeeT 1 Ground Transmitter signal ground 2 TX Fault 3 Signal Out Transmitter fault indication 3 TX Disable 3 Signal In Transmitter disable 4 MOD_DEF2 3 Input/Output Module definition 2 5 MOD_DEF1 3 Input/Output Module definition 1 6 MOD_DEF0 3 Input/Output Module definition 0 Select between full or reduced receiver bandwidth Loss of signal 7 Rate Select 3 8 Los 3 Not Connected Signal Out 9 VeeR 1 Ground Receiver ground 10 VeeR 1 Ground Receiver ground 11 VeeR 1 Ground Receiver ground 12 RD- 3 Data Out Received data inverted output 13 RD+ 3 Data Out Received data non-inverted output 14 VeeR 1 Ground Receiver ground 15 VccR 2 Power +3.3V Receiver power supply 16 VccT 2 Power +3.3V Transmitter power supply 17 VeeT 1 Ground Transmitter ground 18 TD+ 3 Data In Transmitter data non-inverted output 19 TD- 3 Data In Transmitter data inverted output 20 VeeT 1 Ground Transmitter ground 3 Notes: 1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7k – 10kΩ resistor on the host board. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 2) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k – 10kΩ resistor. Its states are: Low (0 – 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High (2.0 – 3.465V): Transmitter Disabled Open: Transmitter Disabled 3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k – 10kΩresistor on the host board. The pull-up voltage shall be VccT or VccR. Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID. 4) LOS(Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7k – 10kΩresistor. When high, this output indicates the received optical power is below the worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 5) VeeR and VeeT may be internally connected within the SFP module. 6) Rx_Data-/+: These are the differential receiver outputs. They are AC coupled 100Ωdifferential lines should be terminated with 100Ω(differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 600 and 900 mV differential when properly terminated. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V±5% at the SFP connector pin. Maximum supply current is 200 mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1Ω should be used in order to maintain the required voltage at the SFP input pin with 3.3V. When the recommended supply filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value. VccR and VccT may be internally connected within the SFP transceiver module. 8) Tx_Data-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω termination inside the module. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 200 – 4 1800 mV, though it is recommended that values between 500 and 1200 mV differential be used for best EMI performance. Figure 1. Recommended Host Board Supply Filtering Network Figure 2. Example SFP Host Board Schematics 5 In order to prevent unwanted reflections between system and transceiver, it is necessary to have both a 50Ω impedance matched transmission line as well as a 50Ω termination load. The system board differential pair transmission lines must be designed with the same length. The transmitter internally includes a 100Ω differential termination for the two differential input lines (TD+, TD-). Therefore, additional 50Ω terminations should not be externally connected to the transmitter-input lines. The transmitter is disabled when the TX disable is TTL high and enabled when TTL low. If this feature is not needed, it should be connected to system ground. Outline Diagram Dimensions are in millimeters (inches). Tolerances : x.xx ± 0.025mm x.x ± 0.05mm, unless otherwise specified 6 Module Performance Characteristics Electrical characteristics Parameter Symbol Min Typ Max Unit Transmitter Section (Ambient operating temperature VCC=3.1V to 3.5V) Power supply current ICC - - 150 mA VIH – VIL 300 - 1860 mV Tx disable voltage-low VIL - - 0.8 V Tx disable voltage-high VIH 2 - - V (1) Differential input voltage (1) Differential input is recommended since data sheet spec. can only be guaranteed Receiver Section (Ambient operating temperature VCC=3.1V to 3.5V) (1) Power supply current Differential Data output voltage LOS output voltage-low ICC VO VOL 600 - - 90 900 0.8 LOS output voltage-high VOH 2 - - V Symbol Min Typ Max Unit (1) mA mV V Excludes output load current Optical characteristics Parameter Transmitter Section (Ambient operating temperature VCC=3.1V to 3.5V) Average output power (1) Center wavelength PO -15 -11 -8 dBm λC 1274 1310 1356 nm 2 2.5 nm ∆λRMS Output spectral width (RMS) Extinction ratio ER Output eye 8.2 13 dB Comply with Bellcore TR-NWT-000253 and ITU G.957 Optical rise time (20% to 80%) tR 1 ns Optical fall time (80% to 20%) tF 1 ns -30 dBm (1) 9/125µm SMF coupled Receiver Section (Ambient operating temperature VCC=3.1V to 3.5V) Receiver sensitivity (1) -32 Maximum input power PMAX -3 Link status switching threshold Decreasing light Increasing light LSTD LSTI -40 Link status hysteresis (1) Measured at 1x10 -10 0.5 23 BER with 2 -1 PRBS dBm -30.5 -30 2 dBm dBm dB 7 Absolute Maximum Ratings These are absolute maximum ratings only. Higher stress than these ratings may adversely affect device reliability or cause permanent damage to the device. Parameter Storage temperature Symbol Min TS -40 Typ Soldering temperature Supply voltage VCC 0 Symbol Min TA -40 VCC-Vee 3.1 VD 0.3 Max Unit 85 °C 260 °C 5 V Max Unit 85 °C 3.5 V 2.4 V Note 6sec.on leads only Operating Environment Parameter Ambient temperature Supply voltage Transmitter differential input voltage Typ 3.3 Note Timing requirements of control and status I/O Parameter Symbol Tx Disable assert time Tx Disable Negate time Min Max Unit Conditions toff 10 µs Timing from rising edge of Tx Disable to when the optical output falls below 10% of nominal ton 1 ms Timing from falling edge of Tx Disable to when the modulated optical output rises above 90% of nominal Time to initialize Includes reset of Tx Fault Tx Fault Assert time tinit 300 ms From power on or negation of Tx Fault using Tx Disable tfault 100 µs Time from fault to Tx Fault on Tx Disable to Reset treset µs Time Tx Disable must be held high to reset Tx Fault 10 Los Assert time tloss-on 100 µs Time from LOS state to Rx Los assert Los Deassert time tloss-off 1000 µs Time from non-LOS state to Rx Los deassert Timing from rising or falling edge of rate select input until receiver bandwidth is in conformance with appropriate specification Rate select Change time tratesel 100 µs Serial ID clock rate Fs-clock 100 kHz 8 SFP transceiver power on initialization procedure, TX_DISABLE negated. During power on of the SFP transceiver, TX_FAULT may be asserted (High) as soon as power supply voltages are within specification. For transceiver initialization with TX_DISABLE negated, TX_FAULT shall be negated when the transmitter safety circuitry has detected that the transmitter is operating in its normal state. If a transmitter fault has not occurred, TX_FAULT shall be negated within a period t_init from the time that VCCT exceeds the specified minimum operating voltage. If TX_FAULT remains asserted beyond the period t_init, the host may assume that a transmission fault has been detected by the transceiver. The power on initialization timing for a transceiver with TX_DISABLE negated is shown in Figure 3. Figure 3. Power on initialization of SFP transceivers, Tx Disable negated SFP transceiver power on initialization procedure, TX_DISABLE asserted. For SFP transceiver power on initialization with TX_DISABLE asserted, the state of TX_FAULT is not defined while TX_DISABLE is asserted. After TX_DISABLE is negated, TX_FAULT may be asserted while safety circuit initialization is performed. TX_FAULT shall be negated when the transmitter safety circuitry has detected that the transmitter is operating in its normal state. If a transmitter fault has not occurred, TX_FAULT shall be negated within a period t_init from the time that TX_DISABLE is negated. If TX_FAULT remains asserted beyond the period t_init, the host may assume that a transmission fault has been detected by the transceiver. The power on initialization timing for a SFP transceiver with TX_DISABLE asserted is shown in Figure 4. Figure 4. Power on initialization of SFP, Tx Disable asserted 9 Initialization during hot plugging of SFP Transceiver. When a transceiver is not installed, TX_FAULT is held to the asserted state by the pull up circuits on the host. As the SFP transceiver is installed, contact is made with the ground, voltage, and signal contacts in the specified order. After the SFP has determined that VCCT has reached the specified value, the power on initialization takes place as described in the above sections. An example of initialization during hot plugging is provided in Figure 5. Figure 5. Example of initialization during hot plugging, Tx Disable negated SFP transmitter management The timing requirements for the management of optical outputs from the SFP transceiver using the TX_DISABLE signal are shown in Figure 6. Note that the t_on time refers to the maximum delay until the modulated optical signal reaches 90% of the final value, not just the average optical power. Figure 6. SFP Tx Disable timing during normal operation SFP transceiver fault detection and presentation Figure 7. Detection of transmitter safety fault condition 10 SFP transceiver fault recovery The detection of a safety-related transmitter fault condition presented by TX_FAULT shall be latched. The following protocol may be used to reset the latch in case the transmitter fault condition is transient. To reset the fault condition and associated detection circuitry, TX_DISABLE shall be asserted for a minimum of t_reset. TX_DISABLE shall then be negated. In less than the maximum value of t_init the optical transmitter will correctly reinitialize the laser circuits, negate TX_FAULT, and begin normal operation if the fault condition is no longer present. If a fault condition is detected during the reinitialization, TX_FAULT shall again be asserted, the fault condition again latched, and the optical transmitter circuitry will again be disabled until the next time a reset protocol is attempted. The manufacturer of the SFP shall ensure that the optical power emitted from an open connector or fiber is compliant with IEC825-1 and CDRH during all reset attempts, during normal operation or upon the occurrence of reasonable single fault conditions. The SFP transceiver may require internal protective circuitry to prevent the frequent assertion of the TX_DISABLE signal from generating frequent pulses of energy that violate the safety requirements. The timing for successful recovery from a transient safety fault condition is shown in Figure 8. Figure 8. Successful recovery from transient safety fault condition An example of an unsuccessful recovery, where the fault condition was not transient, is shown in Figure 9. Figure 9. Unsuccessful recovery from safety fault condition 11 SFP transceiver loss of signal indication The LOS signal is intended as a preliminary indication to the system in which the SFP transceiver is installed that the link signals are likely to be outside the required values for proper operation. Such indications typically point to non-installed cables, broken cables, or a disabled, failing or powered off transmitter at the far end of the cable. Additional indications are provided by the system in which the SFP transceiver is installed to verify that the information being transmitted is valid, correctly encoded, and in the correct format. Such additional indications are outside the scope of the SFP Transceiver MSA. The timing of the LOS function is specified in Figure 10. Figure 10. Timing of LOS detection EEPROM Serial ID Memory Contents Data Address Length Name of Field Description Base ID fields 0 1 Identifier 03h=SFP 1 1 Ext. Identifier 04h=All SFP modules indicating serial ID module definition 2 1 Connector 3-10 8 Transceiver 11 1 Encoding 07h=LC SONET code - Reserved Gigabit Ethernet code - 1000BASE_SX FC(Fibre Channel) link length - Reserved FC transmitter technology - Reserved FC transmission media - Reserved FC speed - Reserved 01h=8B10B 12 1 BR, Nominal 19h=100MHz*25=2.5GHz 13 1 Reserved 14 1 9µ, distance 15 1 9µ, distance 16 1 17 1 18 1 50µ, distance 62.5µ, distance CU, distance 19 1 Reserved 20-35 16 Vendor name 36 1 Reserved 1Eh=30*10m=300m 0Fh=15*10m=150m "SAMSUNG " =53/41/4D/53/55/4E/47/20/20/20/20/20/20/20/20/20h 12 37-39 3 Vendor OUI 86/01/00h=SAMSUNG OUI 40-55 16 Vendor PN SAMSUNG part number Vendor rev Reserved Check sum SAMSUNG revision number 56-59 4 60-62 3 63 1 Extended ID fields 64-65 2 Least significant byte of sum of data in addresses 0-62 Options 001Ah=LOS, Tx_Fault, Tx_Disable all supported 66 1 BR, max Unspecified 67 1 BR, min Unspecified 68-83 84-91 16 8 Vendor SN Date code Unspecified Date and lot number 92-94 3 Reserved 95 1 Check sum Vendor specific ID fields 96-127 32 Readable Least significant byte of sum of data in addresses 64-94 Notes: The data can be read using the 2-wire serial Atmel AT24C01A EEPROM protocol 13 Laser Safety Information Class I Laser Product This product complies with IEC825-1, IEC825-2 laser safety requirements Single-mode connector Wavelength=1.3µm Maximum power = 0.2mW Label is not affixed to the module because of size constraints but is contained in the shipping carton. Product is not shipped with power supply Caution: Use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure NOTICE Unterminated optical connectors may emit laser radiation. Do not view with optical instruments 14 Contact us Fiberoptics Division Telecommunication Network Business Samsung Electronics Co.,Ltd. 7 th Fl., Samsung Main Bldg. 250, 2-Ka, Taepyung-Ro, Chung-Ku, Seoul, Korea 100-742 Phone: (82) 2-751-3278 Fax: (82) 2-751-2687 E-mail: [email protected] URL: www.samsungfiberoptics.com Samsung Electronics Co., Ltd. reserves the right to change products and specifications without notice. Copyright 2002 © Samsung Electronics Co, Ltd. All rights Reserved. .