© OCP DTR-1250-MM-LC-MR & DTR-1250-MM-LS-MR 3.3V LC connector SFF Multi-Rate Gigabit Ethernet 850 nm VCSEL Transceivers Features ! Data rate applications from 125 Mbps to 1300 Mbps ! Compliant with IEEE 802.3z Gigabit Ethernet 1000BASE-SX specifications ! 275 m distance with 62.5 µm multimode fiber ! 550 m distance with 50 µm multimode fiber ! 850 nm VCSEL technology ! 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 ! 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-MM-LC-MR and DTR-1250-MM-LS-MR fiber optic multi-rate transceiver offer a simple and convenient way to interface 1000BASE-SX Gigabit Ethernet boards running at 1.25 Gbaud to multimode fiber optic cables. The multirate transceiver operates from Fast Ethernet data rate (125 Mbps) to Gigabit Ethernet data rate (1250 Mbps). A high reliability 850 nm wavelength Vertical Cavity Surface Emitting Laser (VCSEL) is used in the transmitter. All modules satisfy Class I Laser Safety requirements in accordance with the US FDA/CDRH and international IEC-825 standards. 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 0°C to +70°C. The package is made of metal for excellent EMI shielding. The transmit and receive functions are contained in a narrow Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Storage Temperature Tst - 40 + 85 °C Operating Case Temperature Top 0 + 70 °C Supply Voltage VCC - 0.5 + 6.0 V Input Voltage Vin - 0.5 VCC V Output Current IO - 50 mA Lead Soldering Temperature & Time - - 260°C, 10 sec Optical Communication Products, Inc. 1 21737-0249,Rev.A 5-28-2002 DTR-1250-MM-LC-MR & DTR-1250-MM-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 Output Current IO - - 25 mA 1 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. 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 - 160 200 mA AC-coupled module ICC - 185 225 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 + 10 100 TXD - 50 ohm line 0.1 10 RXD+ TX DISABLE 8 SIGNAL DETECT 3 160 50 ohm line 9 TXD+ 2 SERDES 50 ohm line 5 RXD - 50 ohm line 7 GND POSTS 100 4 1 depending on SERDES Fig.2 AC-coupled modules 21737-0249,Rev.A 5-28-2002 2 DTR-1250-MM-LC-MR & DTR-1250-MM-LS-MR Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13 Parameter to 3.47 V) Symbol Minimum Typical Maximum Units B 125 1250 1300 Mb/s Po - 9.5 -7 -4 dBm λc 820 - 860 nm Spectral Width (RMS) ∆λRMS - - 0.85 nm Extinction Ratio Phi / Plo 9 - - dB Deterministic Jitter DJ - - 80 ps Random Jitter RJ - - 147 ps Relative Intensity Noise RIN - - - 117 dB/Hz Coupled Power Ratio CPR 9 - - dB Transmitter Output Eye compliant with Eye Mask Defined in 802.3z standard Data Rate 1 Optical Output Power Center Wavelength 1 Measured average power coupled into either 50 µm or 62.5 µm multimode fiber (MMF). Receiver Performance Characteristics (over Operating CaseTemperature, VCC = 3.13 Parameter to 3.47 V) Symbol Minimum Typical Maximum Units B 125 1250 1300 Mb/s BER) 1 Pmin - 17.0 - - dBm BER) 1 Pmax - 3.0 - - dBm Increasing Light Input Psd+ - - - 17.0 dBm Decreasing Light Input Psd- - 30.0 - - dBm - 0.5 - - dB Deterministic Jitter DJ - - 170 ps Random Jitter RJ λ - - 96 ps 770 - 860 nm Return Loss - 12 - - dB Electrical 3 dB upper cutoff frequency - - - 1500 MHz Data Rate -12 Minimum Input Optical Power (10 Maximum Input Optical Power (10 Signal Detect Thresholds -12 Signal Detect Hysteresis Wavelength of Operation Stressed Receiver Sensitivity 1 compliant with 802.3z standard 7 Measured with 2 -1 PRBS at 1250 Mb/s and 125 Mb/s at 850 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. Laser Safety: All transmitters are Class I Laser products per FDA/CDRH and IEC-825 standards. They must be operated under specified operating conditions. Pin Assignments PIN 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 3 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 -) 21737-0249,Rev.A 5-28-2002 DTR-1250-MM-LC-MR & DTR-1250-MM-LS-MR Package without EMI shield (LC) 48.44 1.907 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 48.44 1.907 Package with EMI Shield (LS) 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 21737-0249,Rev.A 5-28-2002 4 DTR-1250-MM-LC-MR & DTR-1250-MM-LS-MR Ordering Information DTR-1250 - MM - Lx - YY - Mp - MR see Pin Length option table Coupling option Pin Length Option Table Options (P) Pin Length (x) Inches Millimeters “Blank” : DC coupling AC : AC coupling 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 Package Types LC: Package without Shield LS: Package With Shield 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 21737-0249,Rev.A 5-28-2002 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 21737-0249,Rev.A 5-28-2002 6