SFP BIDI 2.5Gbps 40Km Tx1310/Rx1550nm / Tx1550/Rx1310nm XSLB-25XXL-40X-D Overview The XSLB-25XXL-40X-D are small form factor pluggable module for OC-48 / STM-16 and Fiber Channel single fiber communications by using 1310nm/1550nm transmitter and 1550nm/1310nm receiver. It is with the SFP 20-pin connector to allow hot plug capability. The transmitter section uses a Distributed feedback laser and is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section PIN or APD mounted in an optical header and a limiting post-amplifier IC. compliant with SFF-8472 SFP MSA. Features Support up to 2.5Gbps data links 40km with 9/125 µm SMF A: 1310nm DFB Tx / 1550nm Rx B: 1550nm DFB Tx / 1310nm Rx Compliant with SFP MSA and SFF-8472 with duplex LC receptacle +3.3V single power supply and TTL Logic Interface Class 1 FDA and IEC60825-1 laser safety compliant Operating case temperature: Standard: 0 to +70 C Industrial: -40 to +85 C Applications Fiber Channel Links OC-48 / STM-16 Links WDM Links The XSLB-25XXL-40-D series are designed to be Ordering Information Part Number XSLB-2535L-40-D XSLB-2553L-40-D XSLB-2535L-40T-D Product Description SFP BIDI 2.5Gbps, Tx1310/Rx1550nm, LC, 40km, 0 C~+70 C, with Digital Diagnostic Monitoring SFP BIDI 2.5Gbps, Tx1550/Rx1310nm, LC, 40km, 0 C~+70 C, with Digital Diagnostic Monitoring SFP BIDI 2.5Gbps, Tx1310/Rx1550nm, LC, 40km, -40 C~+85 C, with Digital Diagnostic Monitoring XSLB-2553L-40T-D Module Block Diagram SFP BIDI 2.5Gbps, Tx1550/Rx1310nm, LC, 40km, -40 C~+85 C, with Digital Diagnostic Monitoring 1
TD+/- TxFault TxDis LD Driver LD LOS RD+/- Post Amp PIN+TIA SCL SDA EEPROM MCU ADC/DAC Vcc Temp Figure 1: Block Diagram Absolute Maximum Ratings Parameter Symbol Min Max Unit Supply Voltage Vcc -0.5 3.6 V Storage Temperature Ts -40 +85 C Operating Humidity - 95 % Recommended Operating Conditions Operating Case Temperature Parameter Symbol Min Typical Max Unit Commercial 0 +70 C Tc Industrial -40 +85 C Power Supply Voltage Vcc 3.15 3.3 3.45 V Power Supply Current Icc 300 ma Data Rate Performance Specifications - Electrical Parameter Symbol Min Typical Max Unit Notes Transmitter 2.5 2.125 Data Input Swing Differential V IN 400 2000 mv Input Differential Impedance Z IN 85 100 115 Ω TX Disable Disable 2.0 Vcc V Gbps AC coupled inputs Rin > 100k ohms @ DC 2
Enable 0 0.8 V TX Fault Fault 2.0 Vcc+0.3 V Normal 0 0.5 V Receiver Data Output Swing Differential V OUT 370 2000 mv Output Differential Impedance Z OUT 85 100 115 Ω Rx_LOS LOS 2.0 Vcc+3 V Normal 0 0.8 V MOD_DEF ( 0:2 ) VoH 2.5 V VoL 0 0.5 V AC coupled inputs With Serial ID Optical and Electrical Characteristics XSLB-2535L-40-D & XSLB-2535L-40T-D Parameter Symbol Min Typical Max Unit Notes Transmitter 9µm Core Diameter SMF L 40 km Data Rate 1.063 2.5 Gbps Centre Wavelength λc 1260 1310 1360 nm Spectral Width (RMS) λ 1 nm Side Mode Suppression Ratio SMSR 30 db Average Output Power Pout -2 +3 dbm 3 Extinction Ratio ER 8.2 db 4 Optical Rise/Fall Time (20%~80%) tr/tf 150 ps Output Optical Eye Compatible with ITU-T G.957 7 TX_Disable Assert Time t_off 10 µs P out@tx Disable Asserted Pout -45 dbm Receiver Centre Wavelength λc 1500 1550 1580 nm Receiver Sensitivity Pmin -20 dbm 6 Receiver Overload Pmax -3 dbm Reflection -27 db LOS De-Assert LOS D -21 dbm LOS Assert LOS A -45 dbm LOS Hysteresis 0.5 db 8 3
XSLB-2553L-40-D & XSLB-2553L-40T-D Parameter Symbol Min Typical Max Unit Notes Transmitter 9µm Core Diameter SMF L 40 km Data Rate 1.063 2.5 Gbps Centre Wavelength λc 1530 1550 1570 nm Spectral Width (RMS) λ 1 nm Side Mode Suppression Ratio SMSR 30 db Average Output Power Pout -2 +3 dbm 3 Extinction Ratio ER 8.2 db 4 Optical Rise/Fall Time (20%~80%) tr/tf 150 ps Output Optical Eye Compatible with ITU-T G.957 7 TX_Disable Assert Time t_off 10 µs Receiver Centre Wavelength λc 1260 1360 nm Receiver Sensitivity Pmin -27 dbm 6 Receiver Overload Pmax -9 dbm Reflection -27 db Optical Path Penalty 1 db LOS De-Assert LOS D -28 dbm LOS Assert LOS A -45 dbm LOS Hysteresis 0.5 db 8 Notes: 3. Output is coupled into a 9/125µm single-mode fiber. 4. Filtered, measured with a PRBS 2 23-1 test pattern @2500Mbps. 5. LVPECL/CML logic, internally AC coupled. 6. Measured at all data rates specified in Data Rate table with ER=9 db, 2 23-1 PRBS data pattern, BER<1E-10. 7. Eye pattern mask 8. LOS Hysteresis 4
Digital Diagnostic Memory Map The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA). The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring. The digital diagnostic memory map specific data field defines as following. Figure2. Digital Diagnostic Memory Map Functional Description Figure3. Functional Description of Transceiver 5
Electrical Pad Layout Figure4. Pin Diagram Pin Descriptions Pin Signal Name Description Plug Seq. Notes 1 V EET Transmitter Ground 1 Note 5 2 TX FAULT Transmitter Fault Indication 3 Note 1 3 TX DISABLE Transmitter Disable 3 Note 2 4 MOD_DEF(2) SDA Serial Data Signal 3 Note 3 5 MOD_DEF(1) SCL Serial Clock Signal 3 Note 3 6 MOD_DEF(0) TTL Low 3 Note 3 7 Rate Select Not Connected 3 8 LOS Loss of Signal 3 Note 4 9 V EER Receiver ground 1 Note 5 10 V EER Receiver ground 1 Note 5 11 V EER Receiver ground 1 Note 5 12 RD- Inv. Received Data Out 3 Note 6 13 RD+ Received Data Out 3 Note 7 14 V EER Receiver ground 1 Note 5 15 V CCR Receiver Power Supply 2 Note 7 16 V CCT Transmitter Power Supply 2 Note 7 17 V EET Transmitter Ground 1 Note 5 18 TD+ Transmit Data In 3 Note 8 19 TD- Inv. Transmit Data In 3 Note 8 6
20 V EET Transmitter Ground 1 Note 5 Notes: Plug Seq.: Pin engagement sequence during hot plugging. 1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V. 2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are: Low (0 to 0.8V) : Transmitter on (>0.8V, < 2.0V) : Undefined High (2.0 to 3.465V) : Transmitter Disabled Open : Transmitter Disabled 3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on the host board. The pullup voltage shall be VccT or VccR. Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID 4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage between 2.0V and Vcc+0.3V. Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be pulled to less than 0.8V. 5) VeeR and VeeT may be internally connected within the SFP module. 6) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 2000 mv differential (185 1000 mv single ended) when properly terminated. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30mA greater than the steady state value. VccR and VccT may be internally connected within the SFP transceiver module 8) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 500 2400 mv (250 1200mV single-ended), though it is recommended that values between 500 and 1200 mv differential (250 600mV single-ended) be used for best EMI performance. Recommended Interface Circuit 7
Figure5. Interface Circuit Mechanical Dimensions Figure6. Mechanical Dimensions References 1. Small Form Factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 2000. 2. Telcordia GR-253and ITU-T G.957 Specifications. Xmultiple Technologies, Inc. Xmultiple Technologies, Inc. reserves the right to make changes to or discontinue any optical link product or service identified in this document without notice in order to improve design and/or performance. If you have any question regarding this specification sheet, please contact our sales representative or send email to info@xmultiple.com 8