OCP DTR-1250-SM2-LC & DTR-1250-SM2-LS 3.3V 2x10 LC connector SFF Gigabit Ethernet 1300 & 1550 nm Laser Transceivers Features Compliant with IEEE 802.3z Gigabit Ethernet 1000BASE-LX PMD specifications Distance options of 10 km, 25 km, 40 km and 70 km using DFB lasers also available Eye Safe (Class I Laser Safety) Excellent EMI & ESD protection (optional extra EMI shield also available) Multi-sourced 20-pin (2x10) 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-SM2-LC and DTR-1250-SM2-LS 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. 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, 20-pin (2x10) package with a Duplex LC connector interface. The receptacle fits into an RJ-45 form factor outline. The 20-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 and -40°C to +85°C. The package is made of either conductive plastic or metal for excellent EMI shielding. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Tst - 40 + 85 °C Storage Temperature Operating Temperature "A" option Top "B" option - 40 + 85 0 + 70 °C Supply Voltage V CC - 0.5 + 6.0 V Input Voltage V in - 0.5 VCC V Output Current IO - 50 mA Lead Soldering Temperature & Time - - 260°C, 10 sec Optical Communication Products, Inc. 1 21737-0283, Rev.A 06-25-03 DTR-1250-SM2-LC & DTR-1250-SM2-LS Transmitter Performance Characteristics (over Operating Case Temperature) All parameters guaranteed only at typical data rate Parameter Symbol B Data Rate1 L2 L1 L0 H3, H5 H7 L2 L1, L0 (0°C to 70°C) L1, L0 (-40°C to 85°C) H3 H5, H7 L2 L1, L0 H3, H5, H7 Optical Output Power2 Center Wavelength Spectral Width (RMS)2 Spectral Width (-20dB) Extinction Ratio Deterministic Jitter Random Jitter Relative Intensity Noise Transmitter Output Eye Po λc ∆λRMS ∆λ20 Phi / Plo DJ RJ RIN Minimum Typical Maximum Units - 11.0 - 9.0 - 5.0 - 4.0 - 3.0 1270 1285 1274 1280 1480 9 - 1250 1310 1310 1310 1310 1550 - - 3.0 - 3.0 0 1.0 2.0 1355 1345 1360 1335 1580 4.0 2.5 1.0 80 147 - 120 Mb/s dBm nm nm dB ps ps dB/Hz Compliant with Eye Mask Defined in IEEE 802.3z standard Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance. 2 Measured average power coupled into single mode fiber (SMF). For50µm or 62.5µm multimode fiber (MMF) operation, the output power is 0.5dB less and is measured after a single mode fiber offset-launch mode-conditioning patch cord as specified in IEEE 802.3z Draft 5.0. 1 Receiver Performance Characteristics (over Operating Case Temperature) All parameters guaranteed only at typical data rate Parameter Data Rate Symbol Minimum Typical Maximum Units B - 20.0 - 21.0 - 23.0 - 3.0 1250 - 23.0 - 24.0 - 26.0 - - Mb/s Psd+ - - - 20.0 - 21.0 - 23.0 dBm Psd- - 30.0 - - dBm 1 Minimum Input Optical Power (10 -12 BER)2 Maximum Input Optical Power (10 -12 L2, L1, L0 H3, H5 H7 2 BER) Pmax L2, L1, L0 H3, H5 H7 Increasing Light Input Signal Detect Thresholds Pmin Decreasing Light Input Signal Detect Hysteresis dBm 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 Compliant with IEEE 802.3z standard 1 Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance. 2 Measured with 27-1 PRBS at 1250Mb/s at 1300nm wavelength. Electrical Power Supply Characteristics (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units VCC 3.13 3.3 3.47 V TX ICC,TX - 80 120 RX ICC,RX - 75 100 mA mA Supply Voltage Supply Current 1 1 Supply current does not include termination resistor current. 2 21737-0283, Rev.A 06-25-03 DTR-1250-SM2-LC & DTR-1250-SM2-LS Transmitter Electrical Interface (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units Input HIGH Voltage VIH VCC - 1.165 - V CC - 0.880 V Input LOW Voltage VIL VCC - 1.810 - V CC - 1.475 V Data Input Current - HIGH IH - - 150 µA Data Input Current - LOW IL 0.5 - - µA Transmitter Disable Voltage VDIS 2.0 - VCC V Transmitter Enable Voltage VEN 0 - 0.8 V Differential Bias Monitor Voltage (Ta = 25°C) VBM+ - VBM- 0.02 - 0.12 V Differential Back Facet Monitor Voltage VFM+ - VFM- - 100 - mV Receiver Electrical Interface (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units Output HIGH Voltage (LV-PECL) 1 VOH V CC - 1.10 - VCC - 0.70 V Output LOW Voltage (LV-PECL) 1 VOL V CC - 1.95 - VCC - 1.50 V Output HIGH Voltage (LV-TTL) VOH 2.4 - V CC Output LOW Voltage (LV-TTL) VOL 0 - 0.8 Output Current IO - - 25 1 mA With 50 ohm terminated to VCC - 2 volts. Application Notes Receiver: Both differential DATA+ and DATA- outputs are LVPECL levels requiring proper termination (see recommended interface circuits). For optimum performance, both outputs should be terminated in the same manner, even if only one is used. Transmitter: When the DATA+ input is at logic HIGH and DATA- input is at logic LOW, the Laser Diode is ON; and vice versa. The transmitter is normally enabled (i.e. when the TX DISABLE control input is not connected). When the TX DISABLE control input voltage is higher than VCC - 1.3 V, the laser is turned off independent of the input data. The Signal Detect circuit monitors the level of the incoming optical signal and generates a logic LOW signal when insufficient photocurrent is produced. If the SIGNAL DETECT output is LV-TTL level, no termination is required. If the SIGNAL DETECT output is LV-PECL level, a termination resistor of 160 ohms to GND is required. The transmitter incorporates an Average Power Control (APC) loop to stabilize the transmitter average optical output power against temperature variation. The APC loop always acts to keep the transmitter average optical output power at a constant value. Therefore, when the input data is all continuous “zeroes” or all continuous “ones”, the transmitter optical output power is a constant level equal to thenominal average optical output power (not at the “OFF” level or at the “ON” level). Ib 10 Ω Pin Assignments PIN FUNCTION PIN FUNCTION VCC VCC 1 VPD 11 VCC TX LD PD 2 RX GND 12 TX GND 3 RX GND 13 TX DISABLE 4 N/C 14 TD+ (TX DATA IN +) 5 N/C 15 TD- (TX DATA IN -) 6 RX GND 16 TX GND 7 VCCRX 17 BM - (BIAS MONITOR -) 8 SD (RX SIGNAL DETECT) 18 BM + (BIAS MONITOR +) 9 RD- ( RX DATA OUT-) 19 FM - (FACET MONITOR -) 3 ΚΩ 3 ΚΩ GND BM + BM - Imon 200 Ω 3 ΚΩ FM + 3 ΚΩ FM GND - 10 RD+ ( RX DATA OUT+) 3 20 FM + (FACET MONITOR +) 21737-0283, Rev.A 06-25-03 DTR-1250-SM2-LC & DTR-1250-SM2-LS Interface circuit: Three options for interface circuit are shown here: two with DC coupling and one with AC coupling. VCC +3.3 volt Capacitor values in µF, Resistor values in ohm 1 µH coil or ferrite inductor + 0.1 The power supply line should be wellfiltered. 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. If Chassis Ground is not available, they should be connected to Circuit Ground. 10 0.1 160 1 µH coil or 7 11 ferrite inductor + 10 14 8 9 1 100 + 2,3,6 0.1 10 15 10 13 TX DISABLE SIGNAL DETECT (see Note below) circuit ground VCC +3.3 volt 50 ohm line RXD+ 100 LV-PECL 50 ohm line RXD - MOUNTING POSTS 12,16 LV-PECL 50 ohm line TXD DTR-1250-SM2-LC VPD +3.3 V TXD+ 100 0.1 160 50 ohm line 160 160 DC coupling chassis ground 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 7 11 ferrite inductor + 14 TXD+ 100 10 0.1 TXD 15 DTR-1250-SM2-LC RXD+ 13 TX DISABLE SIGNAL DETECT (see Note below) VPD +3.3 V 160 50 ohm line LV-PECL 50 ohm line 50 ohm line 10 8 RXD - 100 50 ohm line LV-PECL 9 MOUNTING 2,3,6 POSTS 12,16 1 + 100 0.1 10 Depending on SERDES circuit ground AC coupling chassis ground Ordering Information EMI Shield Distance (notes on p.1 & 3) DTR-1250-SM2-LS-L2-M YES 1000Base-LX (5 km) Longer (10 km) DTR-1250-SM2-LS-L1-M DTR-1250-SM2-LS-L0-M YES Longer (10 km) NO 1300 nm DFB (25 km) DTR-1250-SM2-LS-H3-M YES 1300 nm DFB (25 km) DTR-1250-SM2-LC-H5-M NO 1550 nm DFB (40 km) DTR-1250-SM2-LS-H5-M YES 1550 nm DFB (40 km) DTR-1250-SM2-LC-H7-M NO 1550 nm DFB (70 km) DTR-1250-SM2-LS-H7-M YES 1550 nm DFB (70 km) Model (DC-coupled, Metal Package) EMI Shield Distance (notes on p.1 & 3) DTR-1250-SM2-LC-L2-M NO 1000Base-LX (5 km) DTR-1250-SM2-LC-L1-M DTR-1250-SM2-LC-L0-M NO DTR-1250-SM2-LC-H3-M Model (DC-coupled, Metal Package) 1. For AC-coupled modules, please add suffix “AC” to the above Model Names. For example, the AC-coupled version of DTR-1250-SM-LC-L2 is DTR-1250-SM-LC-L2-AC. 2. For Plastic Package modules, please remove suffix “M” to the above Model Names. For example, the Plastic Package version of DTR-1250-SM-LC-L2-M is DTR-1250-SM-LC-L2-AC-M are DTR-1250-SM-LC-L2 and DTR-1250-SM-LC-L2-AC. 3. For Industrial temperature, please add suffix “A” to the above Model Names. For example, Industrial temperature version of DTR-1250-SM2-LC-L2 and DTR-1250-SM2-LC-L2-AC are DTR-1250-SM2-LC-A-L2-M and DTR-1250-SM2-LC-A-L2-AC-M 4. The H3 & H7 options with “A” temperature range is only available from -25°C to +85°C. 4 21737-0283, Rev.A 06-25-03 DTR-xxx-SM2-LC & DTR-xxx-SM2-LS Package without EMI shield (LC) Dimension in inches [mm] Package with EMI Shield (LS) Dimension in inches [mm] Laser Safety: All transmitters 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 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 21737-0283, Rev.A 06-25-03