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| 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 0C to +70C and -40C to +85C. The package is made of either conductive plastic or metal for excellent EMI shielding. Absolute Maximum Ratings Parameter Storage Temperature Operating Temperature Supply Voltage Input Voltage Output Current Lead Soldering Temperature & Time "A" option "B" option Symbol Tst Top V CC V in IO Minimum - 40 - 40 0 - 0.5 - 0.5 Maximum + 85 + 85 + 70 + 6.0 VCC 50 260C, 10 sec 21737-0283, Rev.A 06-25-03 Units C C V V mA Optical Communication Products, Inc. 1 DTR-1250-SM2-LC & DTR-1250-SM2-LS Transmitter Performance Characteristics (over Operating Case Temperature) All parameters guaranteed only at typical data rate Parameter Data Rate1 L2 L1 L0 H3, H5 H7 L2 L1, L0 (0C to 70C) L1, L0 (-40C to 85C) H3 H5, H7 L2 L1, L0 H3, H5, H7 Symbol B Minimum - 11.0 - 9.0 - 5.0 - 4.0 - 3.0 1270 1285 1274 1280 1480 9 Typical 1250 1310 1310 1310 1310 1550 Maximum - 3.0 - 3.0 0 1.0 2.0 1355 1345 1360 1335 1580 4.0 2.5 1.0 80 147 - 120 Units Mb/s Optical Output Power2 Po dBm Center Wavelength c nm Spectral Width (RMS)2 Spectral Width (-20dB) Extinction Ratio Deterministic Jitter Random Jitter Relative Intensity Noise Transmitter Output Eye 1 RMS 20 Phi / Plo DJ RJ RIN 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). For50m or 62.5m 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. Receiver Performance Characteristics (over Operating Case Temperature) All parameters guaranteed only at typical data rate Parameter Data Rate 1 Symbol B L2, L1, L0 H3, H5 H7 2 BER) L2, L1, L0 H3, H5 H7 Pmin Pmax Psd+ PsdDJ RJ - Minimum - 20.0 - 21.0 - 23.0 - 3.0 - 30.0 0.5 1100 12 - Typical 1250 - 23.0 - 24.0 - 26.0 - Maximum - 20.0 - 21.0 - 23.0 170 96 1600 1500 Units Mb/s dBm dBm dBm dBm dB ps ps nm dB MHz Minimum Input Optical Power (10 -12 BER)2 Maximum Input Optical Power (10 -12 Signal Detect Thresholds Increasing Light Input Decreasing Light Input Signal Detect Hysteresis Deterministic Jitter Random Jitter Wavelength of Operation Return Loss Electrical 3 dB upper cutoff frequency Stressed Receiver Sensitivity 1 Compliant with IEEE 802.3z standard 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 Supply Voltage Supply Current 1 1 Symbol VCC TX RX ICC,TX ICC,RX Minimum 3.13 - Typical 3.3 80 75 Maximum 3.47 120 100 Units V mA mA 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 Input HIGH Voltage Input LOW Voltage Data Input Current - HIGH Data Input Current - LOW Transmitter Disable Voltage Transmitter Enable Voltage Differential Bias Monitor Voltage (Ta = 25C) Symbol VIH VIL IH IL VDIS VEN VBM+ - VBMVFM+ - VFM- Minimum VCC - 1.165 VCC - 1.810 0.5 2.0 0 0.02 - Typical 100 Maximum V CC - 0.880 V CC - 1.475 150 VCC 0.8 0.12 - Units V V A A V V V mV Differential Back Facet Monitor Voltage Receiver Electrical Interface (over Operating Case Temperature Range) Parameter Symbol 1 1 Minimum V CC - 1.10 V CC - 1.95 2.4 0 - Typical - Maximum VCC - 0.70 VCC - 1.50 V CC 0.8 25 Units V V Output HIGH Voltage (LV-PECL) Output LOW Voltage (LV-PECL) Output HIGH Voltage (LV-TTL) Output LOW Voltage (LV-TTL) Output Current 1 VOH VOL VOH VOL IO mA With 50 ohm terminated to VCC - 2 volts. Application Notes 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 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). 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. 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. Pin Assignments PIN 1 2 3 VPD RX GND RX GND N/C N/C RX GND VCCRX SD (RX SIGNAL DETECT) RD- ( RX DATA OUT-) FUNCTION PIN 11 VCC TX 12 13 14 15 16 TX GND TX DISABLE TD+ (TX DATA IN +) TD- (TX DATA IN -) TX GND FUNCTION VCC LD Ib 10 BM + VCC PD Imon 200 3 FM + 3 4 5 3 BM - 3 FM - 6 7 8 9 17 BM - (BIAS MONITOR -) 18 BM + (BIAS MONITOR +) 19 FM - (FACET MONITOR -) 20 FM + (FACET MONITOR +) GND GND 3 10 RD+ ( RX DATA OUT+) 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. The power supply line should be wellfiltered. All 0.1 F 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. VPD +3.3 V VCC +3.3 volt 1 H coil or ferrite inductor 0.1 1 H coil or ferrite inductor + + Capacitor values in F, Resistor values in ohm 10 0.1 160 7 160 11 14 TXD+ 50 ohm line 50 ohm line 50 ohm line 50 ohm line 100 LV-PECL 100 0.1 DTR-1250-SM2-LC 10 LV-PECL TXD 15 TX DISABLE SIGNAL DETECT (see Note below) + 13 8 10 RXD+ 9 1 2,3,6 MOUNTING POSTS 12,16 RXD - 100 0.1 10 160 160 circuit ground chassis ground DC coupling VCC +3.3 volt 1 H coil or ferrite inductor 0.1 1 H coil or ferrite inductor + + Capacitor values in F, Resistor values in ohm Depending on SERDES 10 0.1 160 7 14 TXD+ 160 50 ohm line 50 ohm line 50 ohm line 50 ohm line 100 11 10 100 0.1 DTR-1250-SM2-LC TXD 15 LV-PECL TX DISABLE SIGNAL DETECT (see Note below) VPD +3.3 V + 13 8 1 RXD+ 10 RXD - LV-PECL 100 0.1 10 9 MOUNTING 2,3,6 POSTS 12,16 Depending on SERDES circuit ground chassis ground AC coupling Ordering Information Model (DC-coupled, Metal Package) EMI Shield Distance (notes on p.1 & 3) 1000Base-LX (5 km) Longer (10 km) 1300 nm DFB (25 km) 1550 nm DFB (40 km) 1550 nm DFB (70 km) Model (DC-coupled, Metal Package) EMI Shield Distance (notes on p.1 & 3) 1000Base-LX (5 km) Longer (10 km) 1300 nm DFB (25 km) 1550 nm DFB (40 km) 1550 nm DFB (70 km) DTR-1250-SM2-LC-L2-M DTR-1250-SM2-LC-L1-M DTR-1250-SM2-LC-L0-M DTR-1250-SM2-LC-H3-M DTR-1250-SM2-LC-H5-M DTR-1250-SM2-LC-H7-M NO NO NO NO NO DTR-1250-SM2-LS-L2-M DTR-1250-SM2-LS-L1-M DTR-1250-SM2-LS-L0-M DTR-1250-SM2-LS-H3-M DTR-1250-SM2-LS-H5-M DTR-1250-SM2-LS-H7-M YES YES YES YES YES 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 -25C to +85C. 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 |
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