OCP DTR-2488-SM-LC/LS-W-G-CWDM OC-48/STM-16 2x5 SFF Single Mode CWDM Transceivers Features ; Eight (8) Wavelength CWDM Transceivers ; Compliant with SONET/SDH OC-48/STM-16 IR-2/S-16.2 & LR-2/L-16.2 Specifications ; Eye Safe (Class I Laser Safety) ; Multi-sourced 2x5 Package Style ; Duplex LC Optical Interface ; AC Coupling or DC Coupling Option to LV-PECL DATA Compatible Interface ; LV-TTL SIGNAL DETECT Output ; Metal Package for Excellent EMI Shielding ; Single +3.3V Power Supply Description The DTR-2488-SM-LC/LS-W-G-CWDM SFF series of fiber optic transceivers provide a quick and reliable interface for intermediate reach (IR-2) and long reach (LR-2) applications. Products under this series are compliant with SONET/SDH OC-48/STM-16 (2.488Gb/s) standards for IR-2/S-16.2 intermediate reach and LR-2/L-16.2 long reach applications ,and are available in eight (8) wavelengths: 1470nm, 1490nm, 1510nm, 1530nm, 1550nm, 1570nm, 1590nm and 1610nm. Two performance options are available. In option L0, a guaranteed minimum optical power of -5dBm is offered with a PIN receiver that corresponds to a link distance of 15km (assuming fiber loss of 0.25dB/km). In option HP, a guaranteed minimum optical power of -2dBm is offered with an APD receiver that corresponds to a link distance of 80km (assuming fiber loss of 0.25dB/km). All modules satisfy Class I Laser Safety requirements in accordance with the U.S. FDA/CDRH and international IEC-60825 standards. The transmit and receive functions are contained in a narrow width two-row, 10-pin (2x5) package with a duplex LC optical interface. The receptacle fits into an RJ-45 form factor outline. The 10-pin configuration is in conformance to the SFF MSA. The transmitter design incorporates the necessary control and driver circuitry for converting differential data to light. The receiver uses an InGaAs/InP PIN photodiode for IR-2 applications and an APD photodiode for LR-2 applications to covert the light signal into an electrical current which is amplified and regenerated into differential data outputs. ACcoupled transmit and receive DATA interface is recommended for compatibility with LV-PECL signal levels. An option for DC-coupled interface is also available. LV-TTL SIGNAL DETECT function is provided to indicate optical input loss. The transceivers operate from a single +3.3V power supply over an operating case temperature range of -5°C to +70°C. The housing is made of metal to enhance EMI immunity. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Storage Temperature Tst - 40 + 85 °C Operating Case Temperature Top -5 + 70 °C Pin, max - + 3.0 dBm Maximum Input Optical Power (LR-2 only, 60 seconds max.) Supply Voltage VCC 0 + 4.5 V Input Voltage Vin 0 VCC V Output Current IO - 50 mA Lead Soldering Temperature & Time - - 260°C, 10 seconds Optical Communication Products, Inc. 1 21737-0291, Rev. B 07-21-2005 DTR-2488-SM-LC/LS-W-G-CWDM Transmitter Performance Characteristics (Over Operating Case Temperature Range, VCC = 3.13 to 3.47V) All parameters guaranteed only at typical data rate Parameter Symbol Minimum Typical Maximum Units B - 2.488 - Gb/s - 5.0 - 2.0 0 - 2.0 0 + 3.0 1 Operating Data Rate Average Optical Output Power (coupled into single mode fiber) 50% duty cycle Extinction Ratio L0 Po HP Phi /Plo 8.2 - - 1470 1464 1470 1477.5 1490 1484 1490 1497.5 1510 1504 1510 1517.5 1524 1530 1537.5 1544 1550 1557.5 1570 1564 1570 1577.5 1590 1584 1590 1597.5 1610 1604 1610 1617.5 1530 Center Wavelength λc 1550 dBm dB nm Spectral Width (-20dB) ∆λ20 - - 1.0 nm Side Mode Suppression Ratio SMSR 30 - - dB - - 1.0 - - 2.0 IR-2 Dispersion Penalty LR-2 - 2 dB Optical Output Eye Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957 Data rate ranges from 155Mb/s to 2.7Gb/s. However, some degradation may be incurred in overall performance. 2 Specified at 1600ps/nm dispersion, which corresponds to the approximate worse-case dispersion for 80km G.652/G.654 fiber over the wavelength range of 1464 -1617.5nm. 1 Receiver Performance Characteristics (Over Operating Case Temperature Range, VCC = 3.13 to 3.47V) All parameters guaranteed only at typical data rate Parameter Symbol 1 B Operating Data Rate Receiver Sensitivity (10-10 BER)2 Maximum Input Optical Power (10-10 BER)2 SIGNAL DETECT Thresholds IR-2 LR-2 IR-2 Pmin LR-2 IR-2 Pmax LR-2 Minimum Typical Maximum Units Gb/s - 2.488 - - 19.0 - - - 29.0 - 31.0 - 0 + 1.0 - - 8.0 - - Increasing Light input Psd+ - - - 19.0 Decreasing Light Input Psd- - 42.0 - - Increasing Light input Psd+ - - - 29.0 Decreasing Light Input Psd- - 42.0 - - dBm dBm dBm SIGNAL DETECT Timing - 3.0 - 100 µs SIGNAL DETECT Hysteresis λ 0.5 1.0 - dB 1260 - 1620 nm Wavelength of Operation 1 Data rate ranges from 155Mb/s to 2.7Gb/s. However, some degradation may be incurred in overall performance. 2 Specified in average optical input power and measured at 2.488Gb/s and 1550nm with 223-1 PRBS. Laser Safety: All transmitters are Class I Laser products per FDA/CDRH and IEC-60825 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 2 21737-0291, Rev. B 07-21-2005 DTR-2488-SM-LC/LS-W-G-CWDM Transmitter Electrical Interface (Over Operating Case Temperature Range, VCC = 3.13 to 3.47V ) Parameter Symbol Minimum Typical Maximum Units VINDIF 0.30 0.80 1.60 V P-P Input Impedance ZIL - 50 - Ω Transmitter Disable Voltage VDIS VCC - 1.3 - VCC V Transmitter Enable Voltage VEN 0 - 0.8 V Input Voltage Swing between DATA+ & DATA- Receiver Electrical Interface (Over Operating Case Temperature Range, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units 1,2 VOH VCC - 1.10 - VCC - 0.90 V 1,2 Output LOW Voltage (LV-PECL) VOL VCC - 1.84 - VCC - 1.60 V Output Current IO - - 25 mA Output HIGH Voltage (LV-TTL) VOH 2.0 - VCC V Output LOW Voltage (LV-TTL) VOL 0 - 0.4 V Output HIGH Voltage (LV-PECL) 1 With 50Ω terminated to V CC - 2V (for DC-coupled modules). 2 For AC-coupled modules, the output voltage swing into 50Ω load is 0.3V minimum and 0.8V maximum single-ended. Electrical Power Supply Characteristics (Over Operating Case Temperature Range, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units VCC 3.13 3.3 3.47 V - 200 250 - 180 230 Supply Voltage AC-coupled modules Supply Current1 ICC DC-coupled modules mA 1 Supply current does not include termination resistor current. Pin Assignment PIN FUNCTION PIN FUNCTION 1 RX GND 6 VCCTX 2 VCCRX 7 TX GND 3 SD (RX SIGNAL DETECT) 8 TX DISABLE 4 RD- (RX DATA OUT-) 9 TD+ (TX DATA IN+) 5 RD+ (RX DATA OUT+) 10 TD- (TX DATA IN-) 3 21737-0291, Rev. B 07-21-2005 DTR-2488-SM-LC/LS-W-G-CWDM Capacitor values in µF, Resistor values in Ω Vcc +3.3V 1µH coil or ferrite inductor + 0.1 10 0.1 1µH coil or + 10 2 6 ferrite inductor 50Ω line 9 TXD+ 100 0.1 SIGNAL DETECT 10 3 RXD+ 50Ω line RXD-RXD 50Ω line 5 8 TX DISABLE LV-PECL 50Ω line TXD TXD- DTR-2488-SM 160 160 LV-PECL 4 GND 1 POSTS 100 7 160 160 Fig.1 DC-coupled modules Capacitor values in µF, Resistor values in Ω Vcc +3.3V 1µH coil or ferrite inductor 0.1 depending on SERDES + 10 0.1 1µH coil or 6 ferrite inductor + 10 2 9 TD+ 50Ω line TD- 50Ω line 100 0.1 10 DTR-2488-SM SIGNAL DETECT 3 TX DISABLE 8 RD+ 160 160 SERDES 50Ω line 5 RD1 GND POSTS 50Ω line 100 4 7 depending on SERDES Fig.2 AC-coupled modules Application Notes 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 50Ω termination. SIGNAL DETECT: The SIGNAL DETECT circuit monitors the incoming optical signal level and generates a logic LOW signal when an insufficient photocurrent is produced. The output is LV-TTL with no termination required. DATA interface (AC-coupled modules): For modules with AC coupling option, both transmitter and receiver interfaces have internal bias, 50Ω termination and AC coupling capacitors. The transmitter can be connected directly to the driving SERDES as shown in Fig. 2. The receiver can be connected directly to the external 50Ω loads (termination resistor of the SERDES). For best performance, both DATA+ & DATAshould be used. TX DISABLE: 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 - 1.3V, the laser is turned off independent of the input data. Power supply and grounding: The power supply line should be well-filtered. All 0.1µF power supply bypass capacitors should be as close to the DTR transceiver module as possible. The module case ground is internally AC-coupled to the circuit ground. 4 21737-0291, Rev. B 07-21-2005 DTR-2488-SM-LC/LS-W-G-CWDM Package without EMI Shield (LC) 48.39 1.905 10.49 .413 RX [13.56 MAX] .535 MAX 13.11 .516 TX 6.25 .246 9.35 .37 [9.78 MAX] .385 MAX 0.38 .015TYP (Y)* (x)* 0.25 2X .010 PIN 6 2.54 2X .100 1.02 2X .040 10.16 .400 1.91 2X .075 PIN 5 [0.46] .018 *(x) & (y): See Pin Length Option Table in Ordering Information PIN 1 1.78 .070 TYP Package with EMI Shield (LS) Dimensions in inches [mm] Default tolerances: .xxx = + .005”, .xx = + .01” 18.54 .730 17.78 .700 48.39 1.905 10.49 .413 RX [13.56 MAX] .535 MAX TX 3.5 .14 9.65 .38 [9.78 MAX] .385 MAX 6.25 .246 [11] .43 0.38 .015 TYP (X)* 0.25 2X .010 PIN 6 (Y)* 2X 1.02 .040 2X [13.59 +0/-0.254] .535 +0/-.01 10.16 .400 1.91 2X .075 2.54 .100 *(x) & (y): See Pin Length Option Table in Ordering Information PIN 1 PIN 5 [0.46] 0.18 1.78 .070 TYP 15.6 .62 18.54 .730 17.78 .700 5 Dimensions in inches [mm] Default tolerances: .xxx = + .005”, .xx = + .01” 21737-0291, Rev. B 07-21-2005 DTR-2488-SM-LC/LS-W-G-CWDM 48.39 1.905 Package with Extended EMI Shield (S1) 15.11 .60 [13.56 MAX] .535 MAX 14.09 .555 15.01 .59 [9.78 MAX] .385 MAX 9.65 .38 0.38 .015 TYP (X)* 6.25 .246 3.6 .14 11.9 .47 (Y)* 0.25 2X .010 1.02 2X .040 PIN 6 2.54 2X .100 [13.59 +0/-0.254] 15.6 .535 +0/-.01 .62 10.16 .400 1.91 2X .075 PIN 5 [0.46] 0.18 TYP *(x) & (y): See Pin Length Option Table in Ordering Information PIN 1 17.78 .700 1.78 .070 TYP Dimensions in inches [mm] Default tolerances: .xxx = + .005”, .xx = + .01” 18.54 .730 Ordering Information DTR - 2488 - SM - Lx - Ln - DR - XX - Wp - G - Cxxx - S1 Connector LC : w/o EMI Shield LS : w/ EMI Shield or w/ Extended S1 Shield Extended Shield “Blank” : None “S1” : Extended EMI Shield Light Output Option L0 : -5 to 0dBm (IR-2) HP : -2 to +3dBm (LR-2) Center Wavelength C470: 1470nm C490: 1490nm C510: 1510nm C530: 1530nm C550: 1550nm C570: 1570nm C590: 1590nm C610: 1610nm Distance Option (see Note) IR2 : IR-2/S-16.2 (42/15km) LR2 : LR-2/L-16.2 (80km) Pin Length Option Table Options (p) Pin Length (x) Inches Post Length (y) Millimeters Inches Millimeters "blank" 0.140 + 0.010 3.56 + 0.250 0.125 + 0.010 - 0.005 3.17 + 0.250 - 0.125 5 0.155 + 0.010 3.94 + 0.250 0.155 + 0.010 - 0.005 3.94 + 0.250 - 0.125 4.57 + 0.250 0.180 + 0.010 - 0.005 4.57 + 0.250 - 0.125 8 0.180 + 0.010 see Pin Length Option Table Receiver Coupling Option “Blank” : DC Coupling “AC” : AC Coupling Note: These are target distances to be used for classification and not for specification, per Telcordia GR-253-CORE/ITU-T Recommendation G.957. Optical Communication Products, Inc. 6101 Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, 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. © 2005, Optical Communication Products, Inc. 6 21737-0291, Rev. B 07-21-2005