DTR-2488-SM2-LC DTR-2488-SM2-LS OC-48 OC-48/STM-16 DTR-2488-SM2-LC/LS OC-48/

OCP © DTR-2488-SM2-LC DTR-2488-SM2-LC & DTR-2488-SM2-LS DTR-2488-SM2-LS 3.3 volt 2x10 LC connector OC-48 OC-48 Single Mode Transceiver Features þ Full Compliance with OC-48/STM-16 OC-48/STM-16 SONET/ SDH Specifications þ Intermediate Reach & Short Reach þ Eye Safe (Class I Laser Safety) þ Multi-sourced 2x10 package style þ Duplex LC optical connector interface þ Differential Bias Monitor Voltage & Back Facet Monitor Voltage outputs þ Receiver Power Monitor output þ Compatible with LV-PECL DATA interface (AC coupling option also available) þ -40°C to +85°C Operating Temperature þ LV-TTL SIGNAL DETECT output þ Single +3.3 V supply Description The DTR-2488-SM2-LC/LS DTR-2488-SM2-LC/LS fiber optic transceivers offer a simple, convenient way to interface SONET/SDH OC-48/ OC-48/ STM-16 STM-16 PCBs to single mode fiber optic cables for both Short and Intermediate Reach applications. They are fully compliant to all applicable SONET/SDH specifications. The Short Reach version uses a 1300 nm Fabry Perot Laser while the Intermediate Reach version uses a 1300 nm DFB Laser. All modules satisfy Class I Laser Safety requirements in accordance with the US FDA/CDRH and international IEC-825 IEC-825 standards. The transmitter incorporates all the necessary control and driver circuitry for converting differential data to light. The receiver uses an InGaAs/InP PIN photodiode to convert the light signal into an electrical current which is amplified and regenerated into differential data outputs. The transmitter and receiver DATA interfaces are compatible with LV-PECL signal levels. An alternate version with AC coupling interface is also available. A LV-TTL Signal Detect function which indicates loss of optical input is also provided. The transmit and receive functions are contained in two-row, 20-pin (2x10) package with Duplex LC connector interface. The receptacle fits into an RJ-45 RJ-45 form factor outline. The 20pin configuration is in conformance to a Small Form Factor (SFF) multisource transceiver agreement. The transceiver operates from a single +3.3V power supply over an operating temperature range of 0°C to +70°C or -40°C to +85°C (A Option). The package is either conductive plastic or metal for excellent EMI shielding. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Tst - 40 + 85 °C - 40 + 85 °C Storage Temperature Operating Temperature "A" Option Top 0 + 70 °C Supply Voltage "blank" Option VCC 0 + 5.0 V Input Voltage Vin 0 VCC V Output Current IO - 50 Lead Soldering Temperature & Time - - mA 260°C, 10 sec Optical Communication Products, Inc. 1 21737-0331, Rev. A 3-23-2001 DTR-2488-SM2-LC DTR-2488-SM2-LC & DTR-2488-SM2-LS DTR-2488-SM2-LS Transmitter Performance Characteristics (over Operating Case Temperature Range) Parameter Symbol Typical Maximum Units B Data Rate Average Optical Output Power (coupled into single mode fiber), 50% duty cycle Extinction Ratio Center Wavelength Spectral Width (RMS) Minimum 0.15 2.488 3.0 Gb/s - 5.0 - 2.0 0 - 10.0 - 7.0 - 3.0 8.2 1266 - 1310 - 1360 4.0 L0 Po L1 Phi / Plo lc DlRMS dBm dB nm SR (Short Reach) IR1 (Intermediate Reach Dl20 1.0 Spectral Width (-20 dB) 1310nm) IR1 (Intermediate Reach SMSR Side Mode Suppression Ratio 30 1310 nm) Optical Output Eye compliant with Bellcore TR-NWT-000253 TR-NWT-000253 and ITU-T Recommendation G.957 nm dB Receiver Performance Characteristics (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units B 0.15 2.488 3.0 Gb/s Pmin - 18.0 - 20.0 - dBm - 3.0 - 1.0 - 0 1.0 - Data Rate Receiver Sensitivity (10 -10 BER) 1 SR (Short Reach) Max Input Optical Power (10-10 BER) 1 Pmax IR (Intermediate Reach) Increasing Light Input Psd+ - - - 18.0 Decreasing Light Input Psd- - 35.0 - - - 0.5 1.5 - Increasing Light Input t sd+ - - 100 Decreasing Light Input t sd- - - 100 l Signal Detect Thresholds 1100 - 1600 Signal Detect Hysteresis Signal Detect Timing Delay Wavelength of Operation 1 dBm dBm dB ms nm 23 Specified in Average Optical Input Power and measured at 2.488 Gb/s and 1300 nm wavelength with 2 -1 PRBS. Ording Information for LC modules (without EMI shield) MODULE NAME 0°C to 70°C Operating -40°C to 85°C Operating Package SONET / SDH Standard Distance DTR-2488-SM2-LC-L1-SR DTR-2488-SM2-LC-L1-SR DTR-2488-SM2-LC-A-L1-SR DTR-2488-SM2-LC-A-L1-SR Plastic SR 1310 nm / I -16.1 2 km DTR-2488-SM2-LC-L0-IR1 DTR-2488-SM2-LC-L0-IR1 DTR-2488-SM2-LC-A-L0-IR1 DTR-2488-SM2-LC-A-L0-IR1 Plastic IR 1310 nm / S-16.1 15 km DTR-2488-SM2-LC-L1-SR-M DTR-2488-SM2-LC-L1-SR-M DTR-2488-SM2-LC-A-L1-SR-M DTR-2488-SM2-LC-A-L1-SR-M Metal SR 1310 nm / I -16.1 2 km DTR-2488-SM2-LC-L0-IR1-M DTR-2488-SM2-LC-L0-IR1-M DTR-2488-SM2-LC-A-L0-IR1-M DTR-2488-SM2-LC-A-L0-IR1-M Metal IR 1310 nm / S-16.1 1 15 km 1 These are target distances to be used for classification and not for specification, per ITU-T Recommendation G.957. For AC-coupled modules, please add suffix "AC" to the above Model Names ("AC" goes before "M" for Metal Housing) For example, the AC-coupled version of DTR-2488-SM2-LC-L1-SR DTR-2488-SM2-LC-L1-SR is DTR-2488-SM2-LC-L1-SR-AC DTR-2488-SM2-LC-L1-SR-AC the AC-coupled version of DTR-2488-SM2-LC-L1-SR-M DTR-2488-SM2-LC-L1-SR-M is DTR-2488-SM2-LC-L1-SR-AC-M DTR-2488-SM2-LC-L1-SR-AC-M Ording Information for LS modules (with EMI shield) MODULE NAME 0°C to 70°C Operating -40°C to 85°C Operating Package SONET / SDH Standard Distance DTR-2488-SM2-LS-L1-SR DTR-2488-SM2-LS-L1-SR DTR-2488-SM2-LS-A-L1-SR DTR-2488-SM2-LS-A-L1-SR Plastic SR 1310 nm / I -16.1 2 km DTR-2488-SM2-LS-L0-IR1 DTR-2488-SM2-LS-L0-IR1 DTR-2488-SM2-LS-A-L0-IR1 DTR-2488-SM2-LS-A-L0-IR1 Plastic IR 1310 nm / S-16.1 15 km DTR-2488-SM2-LS-L1-SR-M DTR-2488-SM2-LS-L1-SR-M DTR-2488-SM2-LS-A-L1-SR-M DTR-2488-SM2-LS-A-L1-SR-M Metal SR 1310 nm / I -16.1 2 km DTR-2488-SM2-LS-L0-IR1-M DTR-2488-SM2-LS-L0-IR1-M DTR-2488-SM2-LS-A-L0-IR1-M DTR-2488-SM2-LS-A-L0-IR1-M Metal IR 1310 nm / S-16.1 15 km 1 These are target distances to be used for classification and not for specification, per ITU-T Recommendation G.957. For AC-coupled modules, please add suffix "AC" to the above Model Names ("AC" goes before "M" for Metal Housing). For example, the AC-coupled version of DTR-2488-SM2-LS-L1-SR DTR-2488-SM2-LS-L1-SR is DTR-2488-SM2-LS-L1-SR-AC DTR-2488-SM2-LS-L1-SR-AC the AC-coupled version of DTR-2488-SM2-LS-L1-SR-M DTR-2488-SM2-LS-L1-SR-M is DTR-2488-SM2-LS-L1-SR-AC-M DTR-2488-SM2-LS-L1-SR-AC-M 21737-0331, Rev. A 3-23-2001 2 1 DTR-2488-SM2-LC DTR-2488-SM2-LC & DTR-2488-SM2-LS DTR-2488-SM2-LS Transmitter Electrical Interface (over Operating Case Temperature Range) Parameter Symbol Minimum Typical Maximum Units VINDIF 1.60 V P-P Input Voltage Swing between DATA+ & DATA- 0.30 0.80 Input Impedance ZIL - 50 - ohm Transmitter Disable Voltage VDIS VCC - 1.3 - VCC V Transmitter Enable Voltage VEN 0 - 0.8 V Differential Bias Monitor Voltage (Ta = 25°C) VBM+ - VBM- 0.10 - 0.27 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) 1,2 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 VOH 2.0 - VCC V Output Current Output HIGH Voltage (LV-TTL) VOL 0 - 0.4 V VRPM 0.6 0.8 1.0 mA/mW Output LOW Voltage (LV-TTL) RPM (Receiver Power Monitor) 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 0.8 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 - 210 270 mA AC-coupled module ICC - 230 290 mA Supply Voltage Supply Current 1 1 Supply current does not include termination resistor current. Pin Assignment PIN FUNCTION 1 RPM (Reciever Power Monitor) 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-) Laser Safety: All transmitters are Class I Laser products per FDA/CDRH and IEC-825 IEC-825 standards. They must be operated under specified operating conditions. 11 VCCTX 19 FM - (FACET MONITOR -) 10 RD+ ( RX DATA OUT+) PIN 20 FUNCTION 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 FM + (FACET MONITOR +) 3 21737-0331, Rev. A 3-23-2001 DTR-2488-SM2-LC DTR-2488-SM2-LC & DTR-2488-SM2-LS DTR-2488-SM2-LS Application Notes DATA interface (DC-coupled modules): The interface circuit for standard DC-coupled modules with directcoupled LV-PECL interface is shown in Fig. 1. The transmitter input has internal 50 ohm termination. Laser Bias & Laser Back Facet Monitor Circuit VCC LD DATA interface (AC-coupled modules): For modules with AC coupling option, both transmitter and receiver interface has internal bias, 50 ohm 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. SIGNAL DETECT: The Signal Detect circuit monitors the incoming optical signal level and generates a logic LOW signal when insufficient photocurrent is produced. The output is LV-TTL with no termination required. TX DISABLE: The transmitter is normally enabled (i.e. when the TX Enable control input is not connected). When the TX Enable control input voltage is higher than Vcc1.3V, the laser is turned off independent of the input data. Power supply and grounding: The power supply line should be well-filtered. All 0.1 mF power supply bypass capacitors should be as close to the DTR transceiver module as possible. Receiver Power Monitor option 1. VCC PD Ib BM + 3 KW 10 W BM 3 KW R - FM + 3 KW FM - Control Circuit Bias Circuit GND GND LD Back Facet Monitor Circuit LD Bias Monitor Circuit Note: R = 200W for Short Reach, and 1KW for Intermediate Reach VCC +3.3 volt Capacitor values in mF, Resistor values in ohm 1 mH coil or ferrite inductor 0.1 + 10 0.1 160 1 mH coil or + ferrite inductor 10 7 11 100 8 50 ohm line 10 RD+ RPM (see Power Monitor Options) 1 External Resistor GND 2,3,6 POSTS 12,16 100 LV-PECL 50 ohm line RD - 9 LV-PECL 50 ohm line 15 TD - SIGNAL DETECT 160 50 ohm line 14 TD+ 0.1 Vcc DTR-2488 DTR-2488 3 KW Imon 160 160 chassis ground Fig.1 DC-coupled modules 1KW Note: Recommended External Current Monitor Resistor value is 1K. VCC +3.3 volt 0.1 Receiver Power Monitor option 2. 10 510W 2N3906 2N3906 or Equivalent 1 AD8551 AD8551 or Equivalent SIGNAL DETECT 0.1 11 7 0.1 14 TD+ 100 8 15 TD 10 RD+ 1 RPM (see Power Monitor Options) 9 160 50 ohm line 50 ohm line SERDES 50 ohm line RD - 50 ohm line 100 GND 2,3,6 POSTS 12,16 RPM depends on SERDES chassis ground R Fig.2 AC-coupled modules 1KW R: 2KW Recommended 21737-0331, Rev. A 3-23-2001 10 160 + ferrite inductor DTR-2488 DTR-2488 depends on SERDES + 1 mH coil or Vcc 510W Capacitor values in mF, Resistor values in ohm 1 mH coil or ferrite inductor 4 DTR-2488-SM2-LC DTR-2488-SM2-LC & DTR-2488-SM2-LS DTR-2488-SM2-LS Package Without EMI shield (LC) Dimension in inches [mm] Package with EMI shield (LS) Dimension in inches [mm] 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 21737-0331, Rev. A 3-23-2001