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| OCP DTR-1250-SM-GB-L1 GBIC Single Mode Transceiver Features Compliant with GBIC Specification, Rev. 5.5 Compliant with IEEE 802.3z 1000BASE-LX Specifications for Gigabit Ethernet Compliant with Optical Interface Requirements in Annex F of GBIC Specification, Rev. 5.5 Compliant with GBIC Serial Module Definition Protocol (Module Definition 4 in Annex D) 10km with Single Mode Fiber Hot-pluggable Excellent EMI & ESD Protection Eye Safe (Class I Laser Safety) Duplex SC Optical Interface Single +5V Power Supply Description The DTR-1250-SM-GB-L1 GBIC transceiver provides a long haul, single mode solution for 1000BASE-LX Gigabit Ethernet ports in a networking switch. The transceiver uses a 1310nm Fabry Perot laser and a high sensitivity receiver to provide a minimum optical link power budget of 11dB, corresponding to a minimum distance of 10km, assuming fiber loss of 0.45dB/km. It satisfies Class I Laser Safety requirements in accordance with the US FDA/CDRH and international IEC-825 standards. The DTR-1250-SM-GB-L1 transceiver is fully compliant with Annex F of GBIC specification, Rev. 5.5. The transceiver connects to a standard 20-pad GBIC connector for hot plug capability. This allows the system designer to make configuration changes or maintenance by simply plugging in different types of converters without removing the power supply from the host system. The transceiver operates from a single +5V power supply over an operating case temperature range of -5C to +70C. Absolute Maximum Ratings Parameter Storage Temperature Operating Case Temperature Supply Voltage Input Voltage Symbol Tst Top VDD Vin Minimum - 40 -5 0 0 Maximum + 85 + 70 + 6.0 + 6.0 Units C C V V Optical Communication Products, Inc. 1 21737-0381, Rev. C 09-24-2003 DTR-1250-SM-GB-L1 Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 4.75 to 5.25V) All parameters guaranteed only at typical data rate Parameter Operating Data Rate Optical Output Power2 Center Wavelength Spectral Width (RMS)2 Extinction Ratio Transmitter Disabled Optical Output Power 2 Deterministic Jitter Total Jitter Relative Intensity Noise 1 Data 2 1 Symbol B Po c RMS Phi /Plo Pdis DJ TJ RIN Minimum - 9.0 1290 9 - Typical 1250 1310 - Maximum - 3.0 1340 2.5 - 35.0 80 227 - 120 Units Mb/s dBm nm nm dB dBm ps ps dB/Hz Transmitter Output Eye Compliant with Eye Mask Defined in IEEE 802.3z standard rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance. Measured average power coupled into single mode fiber (SMF). Receiver Performance Characteristics (over Operating Case Temperature, VCC = 4.75 to 5.25V) All parameters guaranteed only at typical data rate Parameter Operating Data Rate 1 Symbol B Pmin Pmax Plos+ PlosDJ TJ - Minimum - 20.0 - 3.0 - 30.0 0.5 1100 12 Typical 1250 - Maximum - 20.0 170 266 1600 - Units Mb/s dBm dBm dBm dBm dB ps ps nm dB Minimum Input Optical Power (10-12 BER)2 Maximum Input Optical Power (10-12 BER)2 LOS Thresholds LOS Hysteresis Deterministic Jitter Total Jitter Wavelength of Operation Optical Return Loss Stressed Receiver Sensitivity 1 Data 2 Increasing Light Input Decreasing Light Input Compliant with IEEE 802.3z standard rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance. Measured with 27-1 PRBS at 1250Mb/s at 1310nm wavelength. Laser Safety: All transceivers are Class I Laser products per FDA/CDRH and IEC-825 standards. They must be operated under specified operating conditions. Optical Communication Products, Inc. DATE OF MANUFACTURE: MANUFACTURED IN THE USA This product complies with 21 CFR 1040.10 and 1040.11 Meets Class I Laser Safety Requirements 2 21737-0381, Rev. C 09-24-2003 DTR-1250-SM-GB-L1 Transmitter Electrical Interface (over Operating Case Temperature, VCC = 4.75 to 5.25V) Parameter Input Voltage Swing (+TX_DAT & -TX_DAT) Input HIGH Voltage (TX_DISABLE) Output HIGH Voltage (TX_FAULT)3 Output LOW Voltage (TX_FAULT) 1 3 2 1 Symbol VPP-DIF VIH VIL VOH VOL Minimum 0.65 2.0 0 VCC - 0.5 0 Typical - Maximum 2.0 VDD + 0.3 0.8 VCC + 0.3 0.5 Units V V V V V Input LOW Voltage (TX_DISABLE)2 Differential peak-to-peak voltage. 2 There is an internal 5.1k pullup resistor to VDDT. 3 Open collector compatible, 4.7 to 10k pullup resistor to VCC (Host Supply Voltage). Receiver Electrical Interface (over Operating Case Temperature, VCC = 4.75 to 5.25V) Parameter Output Voltage Swing (+RX_DAT & -RX_DAT)1 Output HIGH Voltage (RX_LOS) Output LOW Voltage (RX_LOS) 1 2 2 Symbol VPP-DIF VOH VOL Minimum 0.60 VCC - 0.5 0 Typical - Maximum 2.0 VCC + 0.3 0.5 Units Vp-p V V Differential peak-to-peak voltage across external 150 load. 2 Open collector compatible, 4.7 to 10k pullup resistor to VCC (Host Supply Voltage). Electrical Power Supply Characteristics (over Operating Case Temperature, VCC = 4.75 to 5.25V) Parameter Supply Voltage Supply Current Symbol VDD IDD Minimum 4.75 Typical 5.0 160 Maximum 5.25 220 Units V mA Module Definition Module Definition 4 MOD_DEF(0) pin 4 TTL LOW MOD_DEF(1) pin 5 SCL MOD_DEF(2) pin 6 SDA Interpretation by Host Serial module definition protocol Pin Assignments PIN 1 2 3 4 5 6 7 8 9 10 FUNCTION RX_LOS (RX LOSS OF SIGNAL) RGND (RX GROUND) RGND (RX GROUND) MOD_DEF(0) MOD_DEF(1) MOD_DEF(2) TX_DISABLE TGND (TX GROUND) TGND (TX GROUND) TX_FAULT PIN 11 12 13 14 15 16 17 18 19 20 FUNCTION RGND (RX GROUND) -RX_DAT (RX DATA OUT -) +RX_DAT (RX DATA OUT +) RGND (RX GROUND) VDDR (RX SUPPLY VOLTAGE) VDDT (TX SUPPLY VOLTAGE) TGND (TX GROUND) +TX_DAT (TX DATA IN +) -TX_DAT (TX DATA IN -) TGND (TX GROUND) 3 21737-0381, Rev. C 09-24-2003 DTR-1250-SM-GB-L1 Example of host board schematic TTL LOW (internally connected to GND) 1 H coil or ferrite bead (<0.2 series resistance) SCL SDA 4 15 0.1 VCC (HOST) 4.7k to 10k 5 6 TX_FAULT VDD (5V) + 10 + 10 10 16 1 0.1 + 10 0.1 RX_LOS GBIC 75 line +TX_DAT 75 line -TX_DAT TX_DISABLE 19 7 2,3,8,9,11,14,17,20 18 13 75 line +RX_DAT to 75 load -RX_DAT to 75 load 75 line 12 Application Notes Connection of the GBIC transceiver to the host system: The GBIC's 20-pad connector and two guide tabs connected to the transceiver's circuit ground connect the GBIC to the host system. The two ground tabs make contact to the host circuit ground before the connector pad and discharge any possible component-damaging static electricity. Additionally, surge currents are eliminated by using a special slow start circuit and two-stage contact sequence where operational signals and grounds make contact prior to the power supply (as specified in the GBIC specification, Rev. 5.5). Electrical interface: All signal interfaces are compliant with the GBIC specification, Rev. 5.5. The high speed DATA interface is differential AC-coupled and can be directly connected to either a 5V or 3.3V SERDES IC. All low speed control and sense input/output signals are open collector TTL compatible and should be pulled up with a 4.7 - 10k resistor on the host board. Loss of Signal (LOS): The Loss of Signal circuit monitors the level of the incoming optical signal and generates a logic HIGH when an insufficient photocurrent is produced. TX FAULT: The output indicates LOW when the transmitter is operating normally, and HIGH when the transmitter or laser current is excessive. TX_FAULT is an open collector/drain output and should be pulled up with a 4.7 - 10k resistor on the host board. TX DISABLE: When the TX_DISABLE pin is at logic HIGH, the transmitter optical output is disabled (less than -35dBm). Serial Identification: The DTR-1250-SM-GB-L1 transceivers are compliant with Annex D (Module Definition 4) of the GBIC specification, Rev. 5.5, which defines the Serial Identification Protocol. The module definition of GBIC is indicated by the three module definition pins, MOD_DEF(0), MOD_DEF(1) and MOD_DEF(2). Module Definition 4 specifies a serial definition protocol with a two-wire I2C serial interface; upon power up, MOD_DEF(1:2) appear as NC (no connection), and MOD_DEF(0) is TTL LOW. When the host system detects this condition, it activates the serial protocol and generates the serial clock signal (SCL). The negative edge clocks data from the GBIC EEPROM. The serial data signal (SDA) is for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The data transfer protocol and the details of the mandatory and vendor specific data structures are defined in Annex D of the GBIC specification, Rev. 5.5. Power supply and grounding: The power supply line should be well-filtered. All 0.1F power supply bypass capacitors should be as close to the GBIC transceiver module as possible. The module case is AC-grounded internally to circuit ground. 4 21737-0381, Rev. C 09-24-2003 DTR-1250-SM-GB-L1 Package Outline 12 .472 12.7 .500 8.9 .35 8.18 .322 1MAX 2X .04 MAX CLOSE [1.49MAX] 38.0MAX 25.40 1.000 13.54MAX .533MAX 0 - 0.10 +.000 2X .050 - .004 1.27 PIN 10 PIN 1 0 1.63 - 0.15 +.000 .064 - .006 GUIDE SLOTS HEIGHT 3.05+0.05 .120+.002 58 MAX 2.28 MAX PIN 20 27.7 1.09 GUIDE SLOTS WIDTH +0.04 10.06 - 0.20 + .002 .396 - .008 30.48 0 - 0.13 +.000 1.200 - .005 Dimensions in inches [mm] Default tolerances: .xxx = + .005", .xx = + .01" Ordering Informaton Model Name DTR-1250-SM-GB-L1 1 Nominal Wavelength 1310nm Optical Link Power Budget 11dB min. Distance1 10km The indicated transmission distance is for guidelines only, not guaranteed. The exact distance is dependent on the fiber loss, connector and splice loss, and allocated system penalty. Longer distances can be supported if the optical link power budget is satisfied. Optical Communication Products, Inc. 6101Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, www.ocp-inc.com Optical Communication Products, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Optical Communication Products, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Optical Communication Products, Inc. for its use nor for any infringements of third parties, which may result from its use. No license is granted by implication or otherwise under any patent right of Optical Communication Products, Inc. (c) 2003, Optical Communication Products, Inc. 5 21737-0381, Rev. C 09-24-2003 |
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