OCP © DTR-1250-SM-LC/LS-CWDM 3.3V LC connector SFF Gigabit Ethernet CWDM Laser Transceivers Features ; Eight wavelengths (8) CWDM transceivers ; Compliant with IEEE 802.3z Gigabit Ethernet 1000BASE-LX PMD specifications ; 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 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 DTR-1250-SM-LC-CWDM and DTR-1250-SM-LSCWDM fiber optic transceivers offer a simple and convenient way to interface 1000BASE-LX Gigabit Ethernet boards running at 1.25 Gbaud to single mode fiber optic cables in Coarse Wavelength Division Multiplexing (CWDM) applications. There are eight center wavelengths available 1470 nm, 1490 nm, 1510 nm, 1530 nm, 1550 nm, 1570 nm, 1590 nm, and 1610 nm. Two performance options are available. In option “H5”, a guaranteed minimum optical link budget of 17 dB is offered which can correspond to a link distance of over 35 km or 40 km (assuming worst case fiber loss of 0.3 and 0.25 dB/km respectively). In option “H7”, a guaranteed minimum optical link budget of 20 dB is offered which can correspond to a link distance of over 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 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 module is housed in a metal package for excellent EMI shielding. The transmit and receive functions are contained in a Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Storage Temperature Tst - 40 + 85 °C Operating Temperature Top 0 + 70 °C Supply Voltage VCC 0 + 5.0 V Input Voltage Vin 0 VCC V Output Current IO - 50 mA Lead Soldering Temperature & Time - - Optical Communication Products, Inc. 1 260°C, 10 sec 21737-0342, Rev. B 1-28-02 DTR-1250-SM-LC/LS-CWDM 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 Symbol Minimum Typical Maximum Units Output HIGH Voltage (LV-PECL) 1,2 VOH VCC - 1.10 - VCC - 0.90 V Output LOW Voltage (LV-PECL) 1,2 VOL VCC - 1.84 - VCC - 1.60 V IO - - 25 mA Output HIGH Voltage (LV-TTL) VOH 2.4 - VCC Output LOW Voltage (LV-TTL) VOL 0 - 0.8 Output Current 1 2 With 50 ohm terminated to VCC - 2 volt (for DC-coupled modules). 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 - 160 230 mA AC-coupled module ICC - 185 255 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.(Option for LVPECL is also avalible.) 21737-0342, Rev. B 1-28-02 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 9 100 0.1 TXD+ TXD - 8 TX DISABLE SIGNAL DETECT RXD+ RXD - 4 3 GND POSTS 7 1 LV-PECL 50 ohm line 10 5 160 50 ohm line 160 50 ohm line 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 0.1 TXD+ TXD - 10 RXD+ TX DISABLE SIGNAL DETECT 8 5 3 4 50 ohm line GND POSTS 1 SERDES 50 ohm line RXD - 50 ohm line 7 160 50 ohm line 100 depending on SERDES Fig.2 AC-coupled modules 2 DTR-1250-SM-LC/LS-CWDM Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13 Parameter Symbol B Data Rate H5 Optical Output Power 1 1470 1490 1510 1530 1550 1570 1590 1610 Center Wavelength Spectral Width (-20 dB) Extinction Ratio Deterministic Jitter Random Jitter Relative Intensity Noise Transmitter Output Eye 1 Po H7 λc to 3.47 V) Minimum Typical Maximum Units 50 - 4.0 1250 - 2.0 1300 Mb/s -3.0 - 1.0 2.0 1464 1484 1504 1524 1544 1564 1584 1604 1470 1490 1510 1530 1550 1570 1590 1610 1477.5 1497.5 1517.5 1537.5 1557.5 1577.5 1597.5 1617.5 1.0 dBm nm ∆λ20 H5, H7 1.0 nm 9 dB 80 ps 147 ps - 120 dB/Hz compliant with Eye Mask Defined in IEEE 802.3z standard Phi / Plo DJ RJ RIN Measured average power coupled into single mode fiber (SMF). Receiver Performance Characteristics (over Operating CaseTemperature, VCC = 3.13 Parameter Symbol Minimum Typical Maximum Units B 125 1250 1300 Mb/s Pmin - 21.0 - 23.0 - - dBm Pmax - 3.0 - - dBm Data Rate Minimum Input Optical Power (10-12 BER) 1 H5 H7 Maximum Input Optical Power (10-12 BER) 1 Increasing Light Input Signal Detect Thresholds to 3.47 V) H5 Psd+ H7 - - - 21.0 dBm - - - 23.0 dBm Psd- - 30.0 - - dBm - 0.5 - - dB Deterministic Jitter DJ - - 170 ps Random Jitter RJ - - 96 ps Wavelength of Operation λ 1100 - 1620 nm Optical Return Loss - 12 - - dB Electrical 3 dB upper cutoff frequency - - - 1500 MHz Decreasing Light Input Signal Detect Hysteresis Stressed Receiver Sensitivity 1 compliant with IEEE 802.3z standard 7 Measured with 2 -1 PRBS at 1250 Mb/s. 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. 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 21737-0342, Rev. B 1-28-02 DTR-1250-SM-LC/LS-CWDM Package without EMI shield (LC) Pin Assignments PIN FUNCTION 1 RX GND 2 VCCRX 3 SD (RX SIGNAL DETECT) 4 RD- (RX DATA OUT -) 10 5 RD+ (RX DATA OUT +) 1 6 VCCTX 7 TX GND 8 TX DISABLE 9 TD+ (TX DATA IN +) 10 TD- (TX DATA IN -) Dimension in inches [mm] *x, *y: see Pin length option table in ordering information 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 18.54 .730 *X 0.46 2X 11 .43 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 *x, *y: see Pin length option table in ordering information 21737-0342, Rev. B 1-28-02 4 Dimension in inches [mm] DTR-1250-SM-LC/LS-CWDM Ordering Information DTR-1250-SM-WW-Xn-Czzz-YY-Mp Package Types LC: Package without Shield LS: Package With Shield Light Output Power H5: -2dBm (typ.) H7: -1dBm (typ.) Pin Length option table 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 Center Wavelength C470: C490: C510: C530: C550: C570: C590: C610: 1470 nm 1490 nm 1510 nm 1530 nm 1550 nm 1570 nm 1590 nm 1610 nm see Pin Length option table Coupling option “Blank”: DC coupling AC : AC coupling 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 21737-0342, Rev. B 1-28-02