OCP © DTR-1250-SM-LC/LS-MR 3.3V LC connector SFF Gigabit Ethernet 1300 nm & 1550 nm Multirate Laser Transceivers Features ! Data rate applications from 125 Mbps to 1300 Mbps ! Compliant with IEEE 802.3z Gigabit Ethernet 1000BASE-LX PMD specifications ! Distance options of 10 km, 25 km, 40 km and 70 km ! Eye Safe (Class I Laser Safety) ! Excellent EMI & ESD protection (optional extra EMI shield also available) ! Multi-sourced 10-pin (2x5) SFF (Small Form Factor) package style ! -40 °C to +85 °C Operating Temperature (“A” option) ! Duplex LC optical connector interface ! Single +3.3 V supply & LV-PECL DATA interface (AC coupling option also available) ! LV-TTL TX DISABLE input & RX SIGNAL DETECT output Description The DTR-1250-SM-LC-MR and DTR-1250-SM-LS-MR fiber optic transceivers offer a simple and convenient way to interface 1000BASE-LX Gigabit Ethernet boards running at 1.25 Gbaud to single mode and multimode fiber optic cables. The multi-rate transceiver operates at Fast Ethernet data rate 125 Mbps to Gigebit Ethernet 1.25 Gbps. In addition to option “L2” for the 5 km distance specified in IEEE 802.3z standard, five other options with longer distance capability with single mode fibers are offered. In option “L1”, a 1300 nm Fabry Perot laser with higher power and narrower spectral width and center wavelength range is used to increase the distance to at least 10 km. In option “L0”, an even higher power 1300 nm Fabry Perot laser is used to offer more optical power budget. In option “H3”, a 1300 nm DFB laser and a high sensitivity receiver are used to increase the distance to over 25 km or 30 km (assuming worst case fiber loss of 0.4 dB/km and 0.35 dB/km respectively). In option “H5”, a 1550 nm DFB laser and a high sensitivity receiver are used to increase the distance to over 35 km or 40 km (assuming worst case fiber loss of 0.3 and 0.25 dB/km respectively). Finally, in option “H7”, a high power 1550 nm DFB laser and an ultra high sensitivity receiver are used to increase the distance to 70 km (assuming fiber loss of 0.2 to 0.25 dB/km). All modules satisfy Class I Laser Safety requirements in accordance with the US FDA/CDRH and international IEC-825 standards. The transmit and receive functions are contained in a narrow width two-row, 10-pin (2x5) package with a Duplex LC connector interface. The receptacle fits into an RJ-45 form factor outline. The 10-pin configuration is in conformance to a Small Form Factor (SFF) multisource agreement. The transmitter and receiver DATA interface are differential direct-coupled LV-PECL. An alternate version with AC coupling interface is also available. An LV-TTL Transmitter Disable control input is provided. The receiver Signal Detect output interface is also LV-TTL. The transceiver operates from a single +3.3V power supply over an operating temperature range of -5 °C to +70 °C and -40 °C to +85 °C (“A” option). The package is made of metal for excellent EMI shielding. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Tst - 40 + 85 °C - 40 + 85 - 5.0 + 70 Storage Temperature Operating Case Temperature "A" option Top "Blank" option °C Supply Voltage VCC 0 + 5.0 V Input Voltage Vin 0 VCC V Output Current IO - 50 mA - - Lead Soldering Temperature & Time 260°C, 10 sec Optical Communication Products, Inc. 1 21737-0337, Rev. A 5-16-2002 DTR-1250-SM-LC/LS-MR Transmitter Electrical Interface Parameter Input HIGH Voltage 1 Input LOW Voltage 1 (over Operating Case Temperature Range) Symbol Minimum Typical Maximum Units VIH VCC - 1.165 - VCC - 0.700 V VIL VCC - 1.950 - VCC - 1.475 V Transmitter Disable Voltage VDIS VCC - 1.3 - VCC V Transmitter Enable Voltage VEN 0 - 0.8 V 1 For AC-coupled modules, the input voltage swing is 0.25 V minimum and 1.2 V maximum single-ended. Receiver Electrical Interface (over Operating Case Temperature Range) Parameter Output HIGH Voltage (LV-PECL) 1,2 Output LOW Voltage (LV-PECL) 1,2 Symbol Minimum Typical Maximum Units VOH VCC - 1.10 - VCC - 0.90 V V VOL VCC - 1.84 - VCC - 1.60 Output HIGH Voltage (LV-TTL) VOH 2.4 - VCC Output LOW Voltage (LV-TTL) VOL 0 - 0.8 IO Output Current 25 With 50 ohm terminated to VCC - 2 volt (for DC-coupled modules). 2 For AC-coupled modules, the output voltage swing into 50-ohm load is 0.3 V minimum and 1 V maximum single-ended. mA 1 Electrical Power Supply Characteristics (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units VCC 3.13 3.3 3.47 V DC-coupled module ICC - 150 220 mA AC-coupled module ICC - 175 245 mA Supply Voltage Supply Current 1 1 Supply current does not include termination. Application Notes +3.3 volt DATA interface (DC-coupled modules): The interface circuit for standard DC-coupled modules with direct-coupled LV-PECL interface is shown in Fig. 1. The Transmitter input has internal 50 ohm termination. DATA interface (AC-coupled modules): For modules with AC coupling option, both transmitter and receiver interface has internal bias, termination and AC coupling capacitor. The transmitter can be connected directly to the driving SERDES as shown in Fig. 2. The receiver can be connected directly to the external 50 ohm loads (termination resistor of the SERDES). For best performance, both DATA+ & DATA- should be used. TX DISABLE: The transmitter is normally enabled (i.e. when the TX DISABLE control input is not connected or at LV-TTL logic LOW). When the TX DISABLE voltage is higher than VCC - 1.3 V, the laser is turned off independent of the input data. SIGNAL DETECT: The Signal Detect circuit monitors the level of the incoming optical signal and generates a logic LOW signal when insufficient photocurrent is produced. Its output is LV-TTL with no termination required. Capacitor values in µF, Resistor values in ohm 1 µH coil or ferrite inductor + 0.1 10 0.1 160 1 µH coil or 6 ferrite inductor + 10 2 TXD+ 9 100 0.1 TXD RXD+ 50 ohm line 5 8 SIGNAL DETECT LV-PECL 50 ohm line 10 TX DISABLE 160 50 ohm line RXD - 4 3 GND POSTS 7 1 160 50 ohm line 100 LV-PECL 160 Fig.1 DC-coupled modules +3.3 volt Capacitor values in µF, Resistor values in ohm 1 µH coil or ferrite inductor depending on SERDES + 0.1 10 0.1 160 1 µH coil or 6 ferrite inductor + 10 2 9 100 TXD+ TXD - 50 ohm line 0.1 10 RXD+ TX DISABLE 8 SIGNAL DETECT 3 160 50 ohm line SERDES 50 ohm line 5 RXD - 50 ohm line 7 GND POSTS 100 4 1 depending on SERDES Fig.2 AC-coupled modules 21737-0337, Rev. A 5-16-2002 2 DTR-1250-SM-LC/LS-MR Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13 Parameter Symbol B Data Rate Minimum Typical Maximum to 3.47 V) Units 125 1250 1300 Mb/s L2 - 11.0 - 3.0 L1 - 9.0 - 3.0 Po Optical Output Power 1 L0 - 5.0 0 dBm H3, H5 - 4.0 1.0 H7 - 3.0 2.0 L2 1270 1310 1355 L1, L0 (-5°C to 70°C) 1285 1310 1345 λc Center Wavelength nm L1, L0 (-40°C to 85°C) 1274 1310 1360 H3 1280 1310 1335 H5, H7 1480 1550 1580 L2 4.0 ∆λRMS Spectral Width (RMS) 1 L1, L0 2.5 nm ∆λ Spectral Width (-20 dB) H3, H5, H7 1.0 20 Phi / Plo 9 dB Extinction Ratio DJ Deterministic Jitter 80 ps RJ Random Jitter 147 ps RIN Relative Intensity Noise - 120 dB/Hz Transmitter Output Eye compliant with Eye Mask Defined in IEEE 802.3z standard 1 Measured average power coupled into single mode fiber (SMF). For 50 µm or 62.5 µm multimode fiber (MMF) operation, the output power is 0.5 dB less and is measured after a single mode fiber offset-launch mode-conditioning patch cord as specified in IEEE 802.3z . Receiver Performance Characteristics (over Operating CaseTemperature, VCC = 3.13 Parameter Symbol Data Rate Minimum Input Optical Power (10-12 BER) 1 L2, L1, L0 H3, H5 H7 Maximum Input Optical Power (10-12 BER) 1 Minimum Typical Maximum Units B 125 1250 1300 Mb/s Pmin - 20.0 - 21.0 - 23.0 - - dBm Pmax - 3.0 - - dBm - - - 20.0 - - - 21.0 - - - 23.0 Psd- - 30.0 - - dBm L2, L1, L0 Signal Detect Thresholds Increasing Light Input H3, H5 Psd+ H7 Decreasing Light Input Signal Detect Hysteresis to 3.47 V) dBm - 0.5 - - dB Deterministic Jitter DJ - - 170 ps Random Jitter RJ - - 96 ps Wavelength of Operation λ 1100 - 1600 nm Return Loss - 12 - - dB Electrical 3 dB upper cutoff frequency - - - 1500 MHz Stressed Receiver Sensitivity 1 compliant with IEEE 802.3z standard Measured with 27-1 PRBS at 1250 Mb/s and 125 Mb/s at 1300 nm wavelength. Power supply and grounding: The power supply line should be well-filtered. All 0.1 µF power supply bypass capacitors should be as close to the DTR transceiver module as possible. The two front GND posts (mounting studs) should be grounded to Chassis Ground for best EMI and ESD protection. If Chassis Ground is not available, they should be tied to Circuit Ground. Transmission distance: The transmission distances indicated for the H3, H5 and H7 modules with DFB laser options are guidelines only, not guaranteed. The exact distance is dependent on the particular fiber loss involved and can be calculated from the optical loss budget. 3 21737-0337, Rev. A 5-16-2002 DTR-1250-SM-LC/LS-MR 48.44 1.907 Package without EMI shield (LC) 10.54 .415 RX 13.56 .534 TX 6.25 .246 9.35 .368 9.78MAX .385MAX 0.38 .015 *y 18.54 .730 *x 0.46 .018 2X 1.02 .040 2X 2.54 .100 10 13.11 .516 10.16 .400 1 0.76 .030 1.91 .075 1.78 .070 Dimension in inches [mm] 17.78 .700 Package with EMI Shield (LS) 48.44 1.907 10.54 .415 13.56 .534 6.25 .246 4.1 .16 9.65 .380 9.78MAX .385MAX 0.38 .015 *y 11 .43 18.54 .730 *X 0.46 2X .018 1.02 .040 2.54 2X 10 .100 13.41 .528 10.16 .400 14.8 .58 1 0.76 .030 1.91 .075 1.78 .070 17.78 .700 Dimension in inches [mm] Notes: 1. Default tolerance for all dimensions given in inches (Unless otherwise noted) .xxx = +0.005 .xx = +0.01 2. *x, *y: see Pin length option table in ordering information 21737-0337, Rev. A 5-16-2002 4 DTR-1250-SM-LC/LS-MR Pin Assignments PIN Laser Safety: All transmitters are Class I Laser products per FDA/CDRH and IEC-825 standards. They must be operated under specified operating conditions. FUNCTION 1 RX GND 2 VCCRX 3 SD (RX SIGNAL DETECT) 4 RD- (RX DATA OUT -) 5 RD+ (RX DATA OUT +) 6 VCCTX 7 TX GND 8 TX DISABLE 9 TD+ (TX DATA IN +) 10 TD- (TX DATA IN -) 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 Ordering Information DTR-1250 - SM - WW - T - Xn - YY - Mp - MR Package Types LC: Package without Shield LS: Package With Shield Temperature Range Coupling option “Blank”: -5 °C to 70 °C “A”: -40 °C to 85 °C “Blank”: DC coupling AC : AC coupling Pin Length option table Light Output Power L2: L1: L0: H3: H5: H7: see Pin Length option table -7dBm (typ.), (5km) -6dBm (typ.), (10km) -3dBm (typ.), (10km) -1dBm (typ.), (25 km w/ 1300 nm DFB laser) -2dBm (typ.), (40 km w/ 1550 nm DFB laser) -1dBm (typ.), (70 km w/ 1550 nm DFB laser) Options (P) Pin Length (x) Inches Millimeters Post Length (y) Inches Millimeters M 0.140 + 0.010 3.56 + 0.250 0.125 + 0.010 - 0.005 3.17 + 0.250 - 0.125 M5 0.155 + 0.010 3.94 + 0.250 0.155 + 0.010 - 0.005 3.94 + 0.250 - 0.125 M8 0.180 + 0.010 4.57 + 0.250 0.180 + 0.010 4.57 + 0.250 Note: 1. When “A” option is required for H5 and H7 power output, it is only available over temperature range of -25°C to +70 °C. 2. These are target distances to be used for classification and not for specification. Optical Communication Products, Inc. 20961 Knapp Street, Chatsworth, CA 91311, Tel.: 818-701-0164, FAX: 818-701-1468, http://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. 5 21737-0337, Rev. A 5-16-2002 Contents Description ................................................................................................................................... 1 Absolute Maximum Ratings ........................................................................................................ 1 Transmitter Electrical Interface (over Operating Case Temperature Range) ....................... 2 Receiver Electrical Interface (over Operating Case Temperature Range) ............................. 2 Electrical Power Supply Characteristics (over Operating Case Temperature Range) ......... 2 Application Notes ........................................................................................................................ 2 Transmitter Performance Characteristics (over Operating Case Temperature) ................... 3 Receiver Performance Characteristics (over Operating CaseTemperature) ......................... 3 Package without EMI shield (LC) ............................................................................................................ 4 Package with EMI Shield (LS) .................................................................................................................. 4 Ordering Information.................................................................................................................. 5 21737-0337, Rev. 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