1.25G CSFP Transceiver (YT-CFP-134/43)

1.25GCSFP Transceiver (WT-CFP-134/43) Dual channel LC, +3.3V,20km 1310/1490nm, FP/DFB-LD, Single-Mode, DDM Features: l1250Mbps Typical Data Rate and compliant to 1000Base BX20 IEEE802.3ah l1310nm FP laser transmitter for UCFP-134 1490nm DFB laser transmitter for UCFP-143 lPIN photo-detector lUp to20kmon 9/125µm SMF lHot-pluggable CSFP footprint lLC/UPC type pluggable optical interface lAchieve operational compatibility with conventional SFP lMetal enclosure, for lower EMI lRoHS compliant and lead-free lSingle +3.3V power supply lSupport Digital Diagnostic Monitoring interface lCompliant with SFF-8472 lCase operating temperature: Industrial / Commercial optional,0°Cto +70°C/-40°Cto +85°C Applications: lGigabit Ethernet(1000BASE-BX20) lPoint to Point FTTH Application lSwitched Backplane Applications lRouter/Server Interface lSwitch to Switch Interface Description: The WT-CSFP-134/43 CSFP transceiversare compatible with the Compact Small Form- Factor Pluggable (CSFP) Multi-Source Agreement (MSA) option 2,The transceiver consists of 2-channel Bi-directional Optical Transceiver unit with five sections: the LD driver, thelimiting amplifier, the digital diagnostic monitor, the 1310nm FP laser (the 1490nmDFB laser) and the PIN photo-detector .The module data link up to20KMin 9/125um single mode fiber. The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2Cregister access. Conventional SFP will function when plugged into a C-SFP socket, at the same time no damage to C-SFP and host board if C-SFP module is plugged into a conventional SFP socket ?. Pin Descriptions Pin# Name Function Notes 1 VEE Transceiver Ground VEE may be internally connected within the SFP module 2 TX FAULT Transmitter Fault Indication TX Fault is an open collector/drain output, which should be pulled up with a 4.7K–10K resistor on the host board. Note 1 for more information 3 TX1_ Disable Transmitter Disable of Ch A Module channel A disables function 4 MOD-DEF2 Two-wires interface Data 2 wire serial ID interface, SDA 5 MOD-DEF1 Two-wires interface Clock 2 wire serial ID interface, SCL 6 TD2- Inverted Transmit Data Input of Ch B These are the differential transmitter puts. They are AC-coupled, differential lines with 100 differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board 7 TD2+ Transmit Data Input of Ch B 8 LOS1 Loss of Signal of Ch A Loss of Signal detected function. Note 2 for more information. 9 RD2+ Received Data Output of Ch B These are the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100(differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. 10 RD2- Inverted Received Data Output of Ch B 11 VEE Transceiver Ground VEE may be internally connected within the SFP module. 12 RD1- Inverted Received Data Output of Ch A These are the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100(differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. 13 RD1+ Received Data Output of Ch A 14 LOS2 Loss of Signal of CH B Loss of Signal detected function. Note 2 for more information. 15 VCCR Receiver Power 3.3V±5%. Note 3 for more information 16 VCCT Transmitter Power 3.3V±5%. Note 3 for more information 17 TX2_ Disable Transmitter Disable of Ch B Module channel B disables function 18 TD1+ Transmit Data Input of Ch A These are the differential transmitter puts. They are AC-coupled, differential lines with 100 differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board 19 TD1- Inverted Transmit Data Input of Ch A 20 VEE Transceiver Ground VEE may be internally connected within the SFP module. Note 1: When high, output indicates a laser fault of some kind either in Channel A or Channel B. The Host shall read Channel A/B for details: TX Fault from channel A if bit 2 is set in [A2H:110]; TX Fault from channel B if bit 2 is set in [B2H: 110]. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. Note 2: When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.4V. Note 3: VccT VccR are the power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 400Ma@3.3V. Vcc may be internally connected within the SFP transceiver module. Figure 2: Pin out of Connector Block on Host Board II.Absolute Maximum Ratings Parameter Symbol Min. Typ. Max. Unit Note Storage Temperature Ts -40 85 ºC Relative Humidity RH 5 95 % Power Supply Voltage VCC -0.5 4 V Signal Input Voltage -0.3 Vcc+0.3 V Receiver Damage Threshold 3 dBm III.Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Unit Note Case Operating Temperature Tcase 0 70 ºC Power Supply Voltage VCC 3.13 3.3 3.47 V Power Supply Current ICC 450 mA Power Supply Noise Rejection 100 mVp-p 100Hz to 1MHz Data Rate 1.25/1.25 Gbps TX Rate/RX Rate Transmission Distance 20 KM Coupled Fiber Single mode fiber 9/125um SMF ?. Specification of Transmitter Parameter Symbol Min. Typ. Max. Unit Note Average Output Power POUT -9 -3 dBm Note (1) Extinction Ratio ER 9 dB Center Wavelength λC 1260 1310 1360 nm UCFP-134 1480 1490 1500 UCFP-143 Spectrum Width (RMS) σ 3.5 nm FP Laser (TX:1310nm) Side Mode Suppression Ratio SMSR 30 dB DFB Laser (TX:1490nm) Spectrum Bandwidth(-20dB) σ 1 nm Transmitter OFF Output Power POff -45 dBm Differential Line Input Impedance RIN 90 100 110 Ohm Output Eye Mask Compliant with IEEE802.3 ah (class 1 laser safety) Note (2) Note (1): Measure at 2^7-1 NRZ PRBS pattern Note (2): Transmitter eye mask definition, and eye mask diagram with at least 10% margin. V.Specification of Receiver Parameter Symbol Min. Typ. Max. Unit Note Input Optical Wavelength λIN 1480 1490 1500 nm UCFP-134 1260 1310 1360 UCFP-143 Receiver Sensitivity PIN -19.5 dBm Note (1) Input Saturation Power (Overload) PSAT -3 dBm Los Of Signal Assert PA -35 dBm Los Of Signal De-assert PD -22 dBm Note (2) LOS Hysteresis PA-PD 0.5 2 6 dB Note (1): Measured with Light source 1490nm(1310nm), ER=9dB; BER =<10^-12 @PRBS=2^7-1 NRZ Note (2): When LOS de-asserted, the RX data+/- output is signal output. VI. Electrical Interface Characteristics Parameter Symbol Min. Typ. Max. Unit Note Transmitter Total Supply Current ICC A mA Note (1) Transmitter Disable Input-High VDISH 2 Vcc+0.3 V Transmitter Disable Input-Low VDISL 0 0.8 V Transmitter Fault Input-High VTxFH 2 Vcc+0.3 V Transmitter Fault Input-Low VTxFL 0 0.8 V Receiver Total Supply Current ICC B mA Note (1) LOSS Output Voltage-High VLOSH 2 Vcc+0.3 V LVTTL LOSS Output Voltage-Low VLOSL 0 0.8 V Note (1): A (TX) + B (RX) = 450mA (Not include termination circuit) VII.Digital Diagnostic Functions Wintop WT-CFP-134/43transceivers support the 2-wire serial communication protocol as defined in the CSFP MSA. It is very closely related to the E2PROM defined in the GBIC standard, with the same electrical specifications. The standard CSFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information. Additionally, Wintop CSFP transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range. The CSFP MSA defines a 256-byte memory map in E2PROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h) or 1011000X(B0h). The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h) or 1011001X(B2h), so the originally defined serial ID memory map remains unchanged. The digital diagnostic memory is defined as follow: The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. Digital diagnostics for the WT-CFP-134/43 are internally calibrated by default. VIII.Recommend Circuit Diagram Note1?Recommendation 100? series resistance on host board. IX.Mechanical Specifications(Unit: mm) Ordering Information PN Data Rate Wavelength Fiber Type Distance WT-CFP-134 1.25Gbps 1310Tx/1490Rx SMF 20km WT-CFP-143 1.25Gbps 1490Tx/1310Rx SMF 20km

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