TR877FA TR877FA-0C20M IEC825-1 1000BASE 8B10B 1000BASE-T 1000BASE-CX - Datasheet Archive

 

Technical Data Sheet January 2002 FIBEROPTICS DIVISION TR877FA 2.5Gbps 850nm VCSEL Small Form Factor Pluggable Transceiver

 

1 Technical Data Sheet January 2002 FIBEROPTICS DIVISION TR877FA TR877FA 2.5Gbps 850nm VCSEL Small Form Factor Pluggable Transceiver Features Single 3.3volt Power Supply 850nm Vertical Cavity Surface Emitting Laser (VCSEL) Source Compliant with InfiniBand Architecture (IBA) IB-1X-SX at 2.5Gbps Compliant with IEEE 802.3z Gigabit Ethernet (1000Base-SX) at 1.25Gbps Compliant with Small Form Factor Pluggable (SFP) MultiSource Agreement AC coupled LVPECL differential inputs and outputs Supports Serial ID Operates with 50µm and 62.5µm multimode optical fibers Metallized Case for the good EMI performance Class 1 FDA and IEC Laser Safety Compliant Applications Data Communication Networks Network Interface Cards High Performance Desktops Storage Area Network (SAN) Product Code Product Code* Data Rate Extinction Ratio Output Power TR877FA-0C20M TR877FA-0C20M Up to 2.5 Gbps 9dB -9.5 ~ -4.0 dBm 2 Description The SAMSUNG TR877FA TR877FA of small form factor pluggable transceiver is designed for use in InfiniBand applications. TR877FA TR877FA transceivers provide the LC Optical receptacle that is compatible with the industry standard LC connector. Transceiver also conforms to the industry SFP MultiSource agreement. For the good EMI performance, this transceiver uses the metal case. The transmitter converts LVPECL compatible electrical serial data into optical serial data. The transmitter contains the automatic power control (APC) circuit for the constant optical power over temperature. For the power control, monitoring PD is built into the TO-46 unit. Also, for the guaranteed Eye safety, automatic shut down function is contained. The receiver converts the optical serial data into LVPECL compatible electrical serial data. The loss of signal (LOS) is TTL high when the received optical power is below the worst-case receiver sensitivity. Low indicates normal operation. 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 7 Rate Select 3 Not Connected Select between full or reduced receiver bandwidth 8 Los 3 Signal Out Loss of signal 9 VeeR 1 Ground Receiver ground 10 VeeR 1 Ground Receiver ground 11 VeeR 1 Ground Receiver ground 12 RD3 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 TD3 Data In Transmitter data inverted output 20 VeeT 1 Ground Transmitter ground Notes: 1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7k ­ 10k 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 ­ 10k 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 ­ 10kresistor 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 3 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 ­ 10k r esistor. 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 100 differential lines hich should be terminated with 100 ( 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 800 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 300 mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1 should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. 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 100 differential 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 ­ 1660 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 4 Application Circuit Figure 2. Example SFP Host Board Shematics In order to prevent unwanted reflections between system and transceiver, it is necessary to have both a 50 impedance matched transmission line as well as a 50 termination load. The system board differential pair transmission lines must be designed with the same length. The transmitter internally includes a 100 differential termination for the two differential input lines (TD+, TD-). Therefor, additional 50 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. 5 Module Performance Characteristics Transmitter Electro-Optical Characteristics (TA=0°C to 70°C,VCC=3.3volt) ° ° Parameter Supply current Launched average power Center wavelength Spectral width(RMS) Relative intensity noise Extinction ratio Rise/Fall time Optical modulation amplitude Optical contributed jitter(total) Symbol IC PO C RIN ER tR/tF OMA TJ Min Typ -9.5 830 850 Max 100 -4 860 0.85 -117 220 Unit mA dBm nm nm dB/Hz dB ns µW ps Max 200 Unit mA PMIN -17 dBm PMAX 0 dBm 9 0.15 180 Note VCSEL 20-80% Receiver Electro-Optical Characteristics (TA=0°C to 70°C,Vcc=3.3volt) ° ° Parameter Supply current Minimum Optical input power(sensitivity) Maximum Optical input power(saturation) Return loss of receiver Loss of Signal - asserted Loss of Signal - deasserted Loss of Signal - hysteresis Symbol IC Min Typ 12 PA PD PA-PD -26 -22 -24 2 -18 3 Note dB dBm dBm dB 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 Soldering temperature Supply voltage Symbol TS Min -40 Typ Unit °C 260 °C 5 VCC Max 85 Note V 6sec.on leads only Operating Environment Parameter Ambient temperature Supply voltage Transmitter differential input voltage Symbol TA VCC-Vee Min 0 3.1 VD 0.6 Typ Max 70 3.5 Unit °C V 2.4 V Note 6 TIMING REQUIREMENTS OF CONTROL AND STATUS I/O PARAMETER SYMBOL MIN. MAX. UNIT CONDITIONS Timing from rising edge of Tx Disable to when the optical output falls below 10% of nominal Timing from falling edge of Tx Disable to when the modulated optical output rises above 90% of nominal Tx Disable assert time t_off 10 µs Tx Disable Negate time t_on 1 ms t_init 300 ms From power on or negation of Tx Fault using Tx Disable t_fault 100 µs Time from fault to Tx Fault on Time to initialize Includes reset of Tx Fault Tx Fault Assert time Tx Disable to Reset Los Assert time Los Deassert time t_reset µs 10 t_loss_on 100 µs t_loss_off 1000 µs Rate select Change time t_ratesel 100 µs Serial ID clock rate f_s_clock 100 Time Tx Disable must be held high to reset Tx Fault Time from LOS state to Rx Los assert 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 kHz 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 7 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 Diable asserted 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. 8 Figure 6. SFP Tx Disable timing during normal operation SFP transceiver fault detection and presentation Figure 7. Detection of transmitter safety fault condition 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 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. 9 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 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. Fiqure 10. Timing of LOS detection 10 Serial ID Data Length Address BASE ID FIELDS 0 1 Name of Field Identifier 1 1 Ext. Identifier 2 1 Connector 3-10 8 Transceiver 11 12 13 14 15 16 1 1 1 1 1 1 17 1 18 19 1 1 Encoding BR, Nominal Reserved 9µ, distance 9µ, distance 50µ, distance 62.5µ, distance CU, distance Reserved 20-35 16 Vendor name 36 1 Reserved 37-39 3 Vendor OUI 40-55 16 Vendor PN 56-59 4 Vendor rev 60-62 3 Reserved 63 1 Check sum EXTENDED ID FIELDS 64-65 2 Options 66 1 BR, max 67 1 BR, min 68-83 16 Vendor SN 84-91 8 Date code 92-94 3 Reserved 95 1 Check sum VENDOR SPECIFIC ID FIELDS 96-127 32 Readable Description 03h=SFP 04h=All SFP modules indicating serial ID module definition 07h=LC SONET code - Reserved Gigabit Ethernet code - 1000BASE 1000BASE_SX FC(Fibre Channel) link length - Reserved FC transmitter technology - Reserved FC transmission media - Reserved FC speed - Reserved 01h=8B10B 8B10B 19h=100MHz*25=2.5GHz 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 86/01/00h=SAMSUNG OUI SAMSUNG part number SAMSUNG revision number Least significant byte of sum of data in addresses 0-62 001Ah=LOS, Tx_Fault, Tx_Disable all supported Unspecified Unspecified Unspecified Date and lot number Least significant byte of sum of data in addresses 64-94 Notes: Identifier The identifier value specifies the physical device described by the serial information. This value shall be included in the serial data. Value 01h 02h 03h 04-7Fh 80-FFh Description GBIC Module/connector soldered to motherboard SFP transceiver Reserved Vendor specific 11 Extended Identifier The field should be set to 04h for all SFP modules indicating serial ID module definition. Connector The Connector value indicates the external connector provided on the interface. This value shall be included in the serial data. that 01h ­ 05h are not SFP compatible, and are included for compatibility with GBIC standards Value 00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 0Ah 0Bh 0C-1Fh 20h 21h 22h-7Fh 80-FFh Description Unknown or unspecified SC Fibre Channel Style 1 copper connector Fibre Channel Style 2 copper connector BNC/TNC Fibre Channel coaxial headers FiberJack LC MT-RJ MU SG Optical pigtail Reserved HSSDC II Copper Pigtail Reserved Vendor Transceiver The following bit significant indicators define the electronic or optical interfaces that are supported by the SFP transceiver. At least one bit shall be set in this field. For Fibre Channel SFPs, the Fibre Channel speed, transmission media, transmitter technology, and distance capability shall all be indicated. Data Bit Description Address position Reserved standard compliance code 3 7-0 Reserved 4 7-4 Reserved SONET Compliance Codes 4 3 Reserved 4 2 OC 48, long reach 4 1 OC 48, intermediate reach 4 0 OC 48 short reach 5 7 5 6 5 5 5 4 5 3 Reserved OC 12, single mode long reach OC 12, single mode inter. reach OC 12 multi-mode short reach Reserved Data address Bit position 7 7 7 7 7 6 5 4 7 7 3-2 1 7 0 8 7 8 6 8 5 8 8 4 0-3 Description very long distance (V) short distance (S) intermediate distance (I) long distance (L) Reserved Longwave laser (LC) Electrical inter-enclosure (EL) Electrical intra-enclosure (EL) Shortwave laser w/o OFC (SN) Shortwave laser w/ OFC (SL) Longwave laser (LL) Reserved 12 5 2 5 1 5 0 6 6 6 6 6 7-4 3 2 1 0 OC 3, single mode long reach OC 3, single mode inter. reach OC 3, multi-mode short reach 7 Twin Axial Pair (TW) 9 6 Shielded Twisted Pair (TP) 9 9 9 9 9 9 5 4 3 2 1 0 Miniature Coax (MI) Video Coax (TV) Multi-mode, 62.5 (M6) Multi-mode, 50 (M5) Reserved Single Mode (SM) 10 10 10 10 10 10 Reserved 1000BASE-T 1000BASE-T 1000BASE-CX 1000BASE-CX 1000BASE-LX 1000BASE-LX 1000BASE-SX 1000BASE-SX 9 7-5 4 3 2 1 0 Reserved 400 MBytes/Sec Reserved 200 Mbytes/Sec Reserved 100 MBytes/Sec Encoding The encoding value indicates the serial encoding mechanism that is the nominal design target of the particular SFP transceiver. The value shall be contained in the serial data. Value 00h 01h 02h 03h 04h 05h -FFh Description Unspecified 8B10B 8B10B 4B5B NRZ Manchester Reserved BR, nominal The nominal bit rate (BR, nominal) is specified in units of 100 Megabits per second, rounded off to the nearest 100 Megabits per second. The bit rate includes those bits necessary to encode and delimit the signal as well as those bits carrying data information. A value of 0 indicates that the bit rate is not specified and must be determined from the transceiver technology. The actual information transfer rate will depend on the encoding of the data, as defined by the encoding value. Length (9)-km Addition to EEPROM data from original GBIC definition. This value specifies the link length that is supported by the SFP transceiver while operating in compliance with the applicable standards using single mode fiber. The value is in units of kilometers. A value of 255 means that the transceiver supports a link length greater than 254 km. A value of zero means that the transceiver does not support single mode fiber or that the length information must be determined from the transceiver technology. Length (9) This value specifies the link length that is supported by the SFP transceiver while operating in compliance with the 13 applicable standards using single mode fiber. The value is in units of 100 meters. A value of 255 means that the transceiver supports a link length greater than 25.4 km. A value of zero means that the SFP transceiver does not support single mode fiber or that the length information must be determined from the transceiver technology. Length (50) This value specifies the link length that is supported by the SFP transceiver while operating in compliance with the applicable standards using 50 micron multi-mode fiber. The value is in units of 10 meters. A value of 255 means that the SFP transceiver supports a link length greater than 2.54 km. A value of zero means that the transceiver does not support 50 micron multi-mode fiber or that the length information must be determined from the transceiver technology. Length (62.5) This value specifies the link length that is supported by the SFP transceiver while operating in compliance with the applicable standards using 62.5 micron multi-mode fiber. The value is in units of 10 meters. A value of 255 means that the SFP transceiver supports a link length greater than 2.54 km. A value of zero means that the SFP transceiver does not 62.5 micron multi-mode fiber or that the length information must determined from the transceiver technology. It is common for the SFP transceiver to support both 50 micron and 62.5 micron fiber. Length (Copper) This value specifies the minimum link length that is supported by the SFP transceiver while operating in compliance with the applicable standards using copper cable. The value is in units of 1 meter. A value of 255 means that the SFP transceiver supports a link length greater than 254 meters. A value of zero means that the SFP transceiver does not support copper cables or that the length information must be determined from the transceiver technology. Further information about the cable design, equalization, and connectors is usually required to guarantee meeting a particular length requirement. Vendor name The vendor name is a 16 character field that contains ASCII characters, left-aligned and padded on the right with ASCII spaces (20h). The vendor name shall be the full name of the corporation, a commonly accepted abbreviation of the name of the corporation, the SCSI company code for the corporation, or the stock exchange code for the corporation. At least one of the vendor name or the vendor OUI fields shall contain valid serial data. Vendor OUI The vendor organizationally unique identifier field (vendor OUI) is a 3-byte field that contains the IEEE Company Identifier for the vendor. A value of all zero in the 3-byte field indicates that the Vendor OUI is unspecified. Vendor PN The vendor part number (vendor PN) is a 16-byte field that contains ASCII characters, left-aligned and padded on the right with ASCII spaces (20h), defining the vendor part number or product name. A value of all zero in the 16- 14 byte field indicates that the vendor PN is unspecified. Vendor Rev The vendor revision number (vendor rev) is a 4-byte field that contains ASCII characters, left-aligned and padded on the right with ASCII spaces (20h), defining the vendor's product revision number. A value of all zero in the 4byte field indicates that the vendor Rev is unspecified. CC_BASE The check code is a one byte code that can be used to verify that the first 64 bytes of serial information in the SFP transceiver is valid. The check code shall be the low order 8 bits of the sum of the contents of all the bytes from byte 0 to byte 62, inclusive. Options The bits in the option field shall specify the options implemented in the SFP transceiver. Data address 64 65 65 65 65 65 65 65 Bit 7-0 7-6 5 4 3 2 1 0 Description Reserved Reserved RATE_SELECT is implemented TX_DISABLE is implemented and disables the serial output. TX_FAULT signal implemented. Loss of Signal implemented, signal inverted Loss of Signal implemented, signal as defined Reserved BR, max The upper bit rate limit at which the SFP transceiver will still meet its specifications (BR, max) is specified in units of 1% above the nominal bit rate. A value of zero indicates that this field is not specified. BR, min The lower bit rate limit at which the SFP transceiver will still meet its specifications (BR, min) is specified in units of 1% below the nominal bit rate. A value of zero indicates that this field is not specified. Vendor SN The vendor serial number (vendor SN) is a 16 character field that contains ASCII characters, left-aligned and padded on the right with ASCII spaces (20h), defining the vendor's serial number for the SFP transceiver. A value of all zero in the 16-byte field indicates that the vendor SN is unspecified. Date Code The date code is an 8-byte field that contains the vendor's date code in ASCII characters. The date code is mandatory. Data address 84-85 86-87 Description ASCII code, two low order digits of year. (00 = 2000) ASCII code, digits of month (01 = Jan through 12 =Dec) 15 88-89 90-91 ASCII code, day of month (01 - 31) ASCII code, vendor specific lot code, may be blank CC_EXT The check code is a one byte code that can be used to verify that the first 32 bytes of extended serial information in the SFP transceiver is valid. The check code shall be the low order 8 bits of the sum of the contents of all the bytes from byte 64 to byte 94, inclusive. Read-only This area may contain vendor specific information which can be read from the SFP transceiver. The data is read only. 16 Outline Diagram Dimensions are in millimeters (inches). Tolerances : x.xx ± 0.025mm x.x ± 0.05mm, unless otherwise specified 17 Performance Characteristics 1. Transmitter Eye Diagram (2.5 Gbps, 27-1 PRBS, unfiltered) 2. Receiver Sensitivity 18 Laser Safety Information Class I Laser Product This laser transceiver is a Class 1 product. It complies with IEC825-1 IEC825-1 and FDA 21 CFR 1040.10 and 1040.11. Wavelength=850nm Maximum power = 400µW (defined by IEC) 70µW(defined by FDA) 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 19 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: opto@samsung.com 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.