PTB (4)CW- LC/PC+ 1000Base-BX10 BiDi SFP Transceiver

Transcription

1 VER 000 / PTB (4)CW- LC/PC+ 1 Features 1.1 Transceiver unit with 1490nm DFB Laser diode transmitter 1310nm InGaAs PIN photodiode receiver 1.2 Compliant with SFP MSA and SFF-8472 with LC receptacle 1.3 Compliant with IEEE802.3ah 1000Base BX-D 1.4 Digital diagnostic monitoring 1.5 Hot-pluggable 1.6 Metal enclosure for lower EMI V Single power supply 1.8 LVPECL logic interface simplifies interface to external circuitry 1.9 LVTTL logic level RX LOS 1.10 With pull de-latch 1.11 Operate typical data rate:1.25gb/s; 1.12 Operate temperature from -40 to 85 C or -5 to 70 C km reach with 9/125 µm single mode fiber (SMF) 2 Applications 2.1 Point to Point FTTH Application 2.2 Fiber Channel 2.3 Gigabit Ethernet 3 General The optical transceiver is compliant with the Small Form- Factor Pluggable (SFP) Multi-Source Agreement (MSA) and SFF It offers previously unavailable system cost, upgrade, and reliability benefits by virtue of being hot-pluggable. 1 of 10.cn

2 RD+/- LOS Post Amp PINTIA TD+/- TxDis TxFault LD Driver LD Temp WDM Vcc A/D convertor SDA SCL EEPROM Memory Digital Diagnostic Monitoring Interface Fig 1 Block Diagram The module provides digital diagnostic information of its operating conditions and status, including transmitting power, laser bias current, module temperature, and supply voltage. Calibration and alarm/warning threshold data are written and stored in internal memory (EEPROM). The memory map is compatible with SFF-847, as shown in Fig wire address X (A0h) 2 wire address X (A2h) 0 0 Alarm and Warning Thresholds (56 bytes) Serial ID Defined by SFP MSA (96 bytes) Vendor Specific (32 bytes) Reserved (128 bytes) Cal Constants (40 bytes) Real Time Diagnostic Interface (24 bytes) Vendor Specific (8 bytes) User Writable EEPROM (120 bytes) Vendor Specific (8 bytes) Fig 2 EEPROM Information The diagnostic data are raw A/D values and must be converted to real world units using calibration constants stored in EEPROM locations in A2h. 2 of 10.cn

3 4 Performance Specifications 4.1 Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Note Storage Temperature Tst C - Operating Case Temperature Tc C C 2 Input Voltage - GND Vcc V - Power Supply Voltage Vcc-Vee V - Total Supply Current Icc ma Damage Threshold for Receiver - 4 dbm 4.2 Recommended Operating Conditions Parameter Symbol Min. Typ. Max. Unit Note Power Supply Voltage V cc V - Case Temperature (Operating) T C C C 2 Data Rate Gb/s Transmitter E-O Characteristics (Tc=-5 to 70 C for PT CW-LC/PC+ and Tc=-45 to 85 C for PT CW-LC/PC+, Vcc=3.135 to 3.465V unless otherwise specified) Parameter Symbol Min. Typ. Max. Unit Note Center Wavelength λ nm - Spectral Width (-20dB) λ nm Average Optical Output Power Po dbm - Extinction Ratio Er db - Average Launch Power of OFF Transmitter -45 dbm Launch OMA OMA -8.2 dbm Transmitter Reflectance TR -10 db Relative Intensity Noise RIN 12 OMA -113 db/hz Optical Return Loss Tolerance 12 db Rise/Fall Time (20%~80%) Tr/Tf 260 ps Power Supply Current Icc ma 3 Transmitter Enable Voltage VEN V - Transmitter Disable Voltage VD Vcc V - Input Differential Impedance Z IN Ohm Single Ended Data Input Swing Vpp mv - Optical Eye IEEE 802.3ah Compatible 4 3 of 10.cn

4 4.4 Receiver O-E Characteristics (Tc=-5 to 70 C for PT CW-LC/PC+ and Tc=-45 to 85 C for PT CW-LC/PC+, Vcc=3.135 to 3.465V unless otherwise specified) Parameter Symbol Min. Typ. Max. Unit Note Operate Wavelength nm - Sensitivity Pr dbm 5 Saturation Ps dbm 5 LOS Asserted dbm High LOS De-Asserted dbm level: LOS Hysteresis db Alarm Data Output Rise/Fall Time Tr/Tf ps Power Supply Current Icc ma 3 Single Ended Data Output Swing V PP mv - LOS Low Voltage V Lout V - LOS High Voltage V Hout Vcc V - Notes: 1. For PTB CW-LC/PC+ 2. For PTB CW-LC/PC+ 3. The current excludes the output load current, 4. Eye mask diagram with at least 10% margin 5. Minimum Sensitivity and saturation levels for a NRZ PRBS. BER 10-12, 1.25Gpbs, ER=6dB 5 EEPROM Information 5.1 EEPROM Serial ID Memory Contents (A0h) Addr. (decimal) Field Size (Bytes) Name of Field Content (Hex) 4 of 10 Content (Decimal) Description 0 1 Identifier 03 3 SFP 1 1 Ext. Identifier 04 4 MOD4 2 1 Connector 07 7 LC Transceiver Transmitter Code 11 1 Encoding B10B 12 1 BR, nominal 0C Gbps 13 1 Reserved Length (9um)-km 0A 10 10km 15 1 Length (9um) km 16 1 Length (50um) Length (62.5um) cn

5 18 1 Length (copper) Reserved E 45 4F NEOPHOTONICS 4F 54 4F 4E Vendor name (ASCII) Reserved Vendor OUI Vendor PN D PTB xCWLC+ xx C 43 xx (ASCII) 2B Vendor rev (ASCII) Wavelength 05 D Reserved CC BASE - - Check sum of bytes Reserved Options 1A BR, max BR, min Vendor SN - - ASCII Vendor date - - Year (2 bytes), Month (2 bytes), Day (2 bytes) 92 1 DDM Type External Calibrated 93 1 LOS, TX_FAULT and Enhanced B0 176 Alarm/warning flags Option implemented 94 1 SFF-8472 Compliance 02 2 SFF-8472 Rev CC EXT - - Check sum of bytes Vendor spec 5 of 10.cn

6 5.2 Alarm and Warning Thresholds (Serial ID A2H): PTB CW-LC/PC+ Parameter(Unit) Temp ( ) Voltage (V) Bias (ma) TX Power (dbm) RX Power (dbm) High Alarm Low Alarm High Warning Low Warning PTB CW-LC/PC+ Parameter(Unit) Temp ( ) Voltage (V) Bias (ma) TX Power (dbm) RX Power (dbm) High Alarm Low Alarm High Warning Low Warning Digital Diagnostic Monitor Accuracy Parameter Unit Accuracy Range Calibration Tx Optical Power db ±3 Po: -9~-3dBm, Recommended operation conditions External Rx Optical Power db ±3 Pi: -19.5~-3dBm, Recommended operation conditions External Bias Current % ±10 Id: 1-100mA, Recommended operating conditions External Power Supply Voltage % ±3 Recommended operating conditions External Internal Temperature ±3 Recommended operating conditions External 6 of 10.cn

7 6 Pin Definitions 6.1 Pin Diagram 20 VeeT 1 VeeT 19 TD- 2 Tx Fault 18 TD+ 3 Tx Disable 17 VeeT 4 MOD-DEF(2) 16 VccT 5 MOD-DEF(1) 15 VccR 6 MOD-DEF(0) 14 VeeR 7 Rate Select 13 RD+ 8 LOS 12 RD- 9 VeeR 11 VeeR 10 VeeR Top of Board Bottom of Board (as viewed thru top of board) 6.2 Pin Descriptions Pin# Name Function Notes 1 VeeT Transmitter Ground - 2 TX Fault Transmitter Fault Indication Note 1 3 TX Disable Transmitter Disable Note 2, Module disables on high or open 4 MOD-DEF2 Module Definition 2 Note 3, 2 wire serial ID interface 5 MOD-DEF1 Module Definition 1 Note 3, 2 wire serial ID interface 6 MOD-DEF0 Module Definition 0 Note 3, Grounded in Module 7 Rate Select Not use - 8 LOS Loss of Signal Note 4 9 VeeR Receiver Ground Note 5 10 VeeR Receiver Ground Note 5 11 VeeR Receiver Ground Note 5 12 RD- Inv. Received Data Out Note 6 13 RD+ Received Data Out Note 6 14 VeeR Receiver Ground Note 5 15 VccR Receiver Power Note 7, 3.3V± 5% 16 VccT Transmitter Power Note 7, 3.3V± 5% 17 VeeT Transmitter Ground Note 5 7 of 10.cn

8 Pin# Name Function Notes 18 TD+ Transmit Data In Note 8 19 TD- Inv. Transmit Data In Note 8 20 VeeT Transmitter Ground Note 5 Notes: 1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 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 KΩ resistor. Its states are: Low (0 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High ( V): 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 pull-up 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 (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K 10KΩ resistor. Pull up voltage between 2.0V and VccT, R+0.3V. 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 < 0.8V. 5. VeeR and VeeT may be internally connected within the SFP module. 6. RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω 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. 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 1Ω 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 30 ma 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 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. 8 of 10.cn

9 7 Package Information (Unit mm /inch) LC Receptacle 8 Recommended Circuit VCC 10uF 0.1uF 1uH Vcc_T 0.1uF Tx_Disable Tx_Fault Z=50 ohms TD+ C Z=50 ohms TD- C R Laser Driver &eye safety circuitry Protocol IC SerDes IC Vcc_R Z=50 ohms 10uF 0.1uF RD+ C VCC R Z=50 ohms RD- Rx_LOS C REF_RATE AMPLIFICATION &QUANTIZATION PLD/PAL mod_def2 mod_def1 mod_def0 EEPROM VEER NOTE: 4.7K ohms<<10k ohms 9 of 10.cn

10 9 Pattern Layout of SFP Printed Circuit Board (Unit: mm) 10 Specification For Environmental Protection This product has been qualified as lead-free and RoHS compliant, all raw materials are avirulence and have no environmental impact, apply new technology, strictly control the manufacturing process, the finished products don t contain any hazardous chemical substances regulated by RoHS directive, 2002/95/EC, or the trace element impurity concentration of banned substances is less than the value defined by RoHS directive 11 Ordering Information Part Number PTB CW-LC/PC+ PTB CW-LC/PC+ Operating Case Temperature -5 ~ +70 C -40 ~ +85 C 10 of 10.cn