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AVAGO TECHNOLOGIES AFBR-57J7APZ handbook

1. Byte Data Notes Byte Data Notes Decimal Hex Decimal Hex 0 03 SFP physical device 37 00 Hex Byte of Vendor OUI 1 1 04 SFP function defined by serial ID only 38 17 Hex Byte of Vendor OUI 1 2 07 LC optical connector 39 6A Hex Byte of Vendor OUI 1 3 00 40 41 Vendor Part Number ASCII character 4 00 41 46 Part Number ASCII character 5 00 42 42 B Vendor Part Number ASCII character 6 00 43 52 R Vendor Part Number ASCII character 7 20 Intermediate distance per FC PI 44 2D Vendor Part Number ASCII character 8 40 Shortwave laser w o OFC open fiber control 45 35 5 Vendor Part Number ASCII character 9 0 Multi mode 50um and 62 5um optical media 46 37 7 Vendor Part Number ASCII character 10 00 47 4A J Vendor Part Number ASCII character 11 01 Compatible with 8B 10B encoded data 48 37 7 Vendor Part Number ASCII character 12 4A 7400 MBit sec nominal bit rate 7 3728 Gbit s 49 41 A Vendor Part Number ASCII character 13 00 50 50 P Vendor Part Number ASCII character 14 00 51 5A Z Vendor Part Number ASCII character 15 00 52 20 Vendor Part Number ASCII character 16 08 75m of 50 125um OM2 fiber 7 4 GBit sec 53 20 Mendor Part Number ASCII character 17 03 30m of 62 5 125um OMI fiber 7 4 GBit sec 54 20 Mendor Part Number ASCII character 18 00 55 20
2. xA 6 20x 0 5 0 03 0 06 D UU UU 11 11 93 Cc Cc cd 2x1 55 0 05 0 10 AGB 6 Figure 6 SFP host board mechanical layout 17 A E ZA E um 2 0 005 TYP 0 06 D DET AIL 1 LEGEND 1 PADS AND VIAS ARE CHASSIS GROUND 2 THROUGH HOLES PLATING OPTIONAL 3 HATCHED AREA DENOTES COMPONENT AND TRACE KEEPOUT EXCEPT CHASSIS GROUND 4 AREA DENOTES COMPONENT KEEPOUT TRACES ALLOWED DIMENSIONS ARE IN MILLIMETERS 17509 gt 3 5 0 3 41 78 0 5 Figure 7 SFP Assembly Drawing For product information and a complete list of distributors please go to our web site Avago Avago Technologies and the A logo are trademarks of Avago Technologies in the United States and other countries Data subject to change Copyright 2005 2009 Avago Technologies All rights reserved AV02 1767EN March 18 2009 Tcase REFERENCE POINT 15 25 0 1 10 REF to PCB 20 me 16 25 0 1 MIN PITCH 10 4 x 0 1 0 4 0 1 below DIMENSIONS IN MILLIMETERS www avagotech com CAGE ASSEMBLY TECHNOLOGIES
3. Vendor Part Number ASCII character 19 14 200m of 50 125um fiber 7 4 GBit sec 56 20 Mendor Part Number ASCII character 20 41 A Vendor Name ASCII character 57 20 Mendor Part Number ASCII character 21 56 V Vendor Name ASCII character 58 20 Vendor Part Number ASCII character 22 41 A Vendor Name ASCII character 59 20 Mendor Part Number ASCII character 23 47 Name ASCII character 60 03 Hex Byte of Laser Wavelength 2 24 4F A O Vendor Name ASCII character 61 52 Hex Byte of Laser Wavelengthl2 25 20 Vendor Name ASCII character 62 00 26 20 Vendor Name ASCII character 63 Checksum for Bytes 0 62031 27 20 Vendor Name ASCII character 64 00 28 20 Vendor Name ASCII character 65 1A Hardware SFP TX DISABLE TX FAULT RX LOS 29 20 Vendor Name ASCII character 66 00 30 20 Vendor Name ASCII character 67 50 8096 below nominal rate tolerated 1 288 Gb s 31 20 Vendor Name ASCII character 68 83 Vendor Serial Number ASCII characters 32 20 Vendor Name ASCII character 84 91 Vendor Date Code ASCII characters 33 20 Vendor Name ASCII character 92 68 Digital Diagnostics Internal Cal Rx Pwr Avg 34 20 Mendor Name ASCII character 93 FO A W Soft SFP TX DISABLE TX FAULT amp RX LOS 35 20 Vendor Name ASCII character 94 03 SFF 8472 Compliance to revision 10 36 00 95 Checksum for Bytes 64 9413 96 255 00 Notes 1 The IEEE Organizationally
4. byte 110 bit 1 Functional Data 1 0 The AFBR 57J7APZ interfaces with the host circuit board through twenty 1 pins SFP electrical connector iden tified by function in Table 2 The board layout for this interface is depicted in Figure 6 The AFBR 57J7APZ high speed transmit and receive in terfaces require SFP MSA OBSAI or CPRI compliant signal lines on the host board To simplify board requirements biasing resistors and ac coupling capacitors are incorpo rated into the SFP transceiver module per INF 8074 and hence are not required on the host board The Tx Disable Tx Fault Rx LOS and Rate Select lines require TTL lines on the host board per INF 8074 if used If an application chooses not to take advantage of the functionality of these pins care must be taken to ground Tx Disable for normal operation and Rate Select is set to default in the proper state Figure 2 depicts the recommended interface circuit to link the AFBR 57J7APZ to supporting physical layer ICs Timing for MSA compliant control signals implemented in the transceiver are listed in Figure 4 Application Support An Evaluation Kit and Reference Designs are available to assist in evaluation of the AFBR 57J7APZ Please contact your local Field Sales representative for availability and ordering details Caution There are no user serviceable parts nor maintenance re quirements for the AFBR 57J7APZ All mechanical ad justments are made at the factory
5. GBd Fibre Channel e AFCT 57D5ATPZ 1310nm 3 3V LC SFP for 8 5 4 25 2 125 GBd Fibre Channel e AFCT 57J7ATPZ 1310nm 3 3V LC SFP for CPRI OBSAI Applications TECHNOLOGIES Features e Fully ROHS Compliant e Diagnostic Features Per SFF 8472 Diagnostic Monitoring Interface for Optical Transceivers e Real time monitors of o Transmitted Optical Power o Received Optical Power o Laser Bias Current o Temperature Supply Voltage e Industrial Temperature and Supply Voltage Operation 40 C to 85 C 3 3V 10 e Transceiver Specifications per SFP INF 8074 and SFF 8472 revision 10 e Upto 200m with 50um for 7 3728 Gb s e Upto 300m with 50um for OBSAI 6 144 Gb s e LC Duplex optical connector interface conforming to ANSI TIA EIA604 10 FOCIS 10A e 850nm Vertical Cavity Surface Emitting Laser VCSEL Source Technology e IEC 60825 1 Class 1 CDRH Class 1 laser eye safe e Compatible with Fibre Channel and Gigabit Ethernet applications Applications Wireless and cellular base station system interconnect OBSAI rates 6 144 Gb s 3 072 Gb s 1 536 Gb s CPRI rates 7 3728 Gb s 4 9152 Gb s 2 4576 Gb s 1 2288 Gb s Digital Diagnostic Interface and Serial Identification The 2 wire serial interface is based on ATMEL 24 01 series EEPROM protocol and signaling detail Conven tional EEPROM memory bytes 0 255 at memory address OxA0 is organized in compliance with INF 8074 Ne
6. High Alarm Set when transceiver internal supply voltage exceeds high alarm threshold Vcc Low Alarm Set when transceiver internal supply voltage exceeds low alarm threshold Tx Bias High Alarm Set when transceiver laser bias current exceeds high alarm threshold Tx Bias Low Alarm Set when transceiver laser bias current exceeds low alarm threshold Tx Power High Alarm Set when transmitted average optical power exceeds high alarm threshold Tx Power Low Alarm Set when transmitted average optical power exceeds low alarm threshold Rx Power High Alarm Set when received average optical power exceeds high alarm threshold Rx Power Low Alarm Set when received average optical power exceeds low alarm threshold reserved Temp High Warning Set when transceiver internal temperature exceeds high warning threshold Temp Low Warning Set when transceiver internal temperature exceeds low warning threshold Vcc High Warning Set when transceiver internal supply voltage exceeds high warning threshold Vcc Low Warning Set when transceiver internal supply voltage exceeds low warning threshold Tx Bias High Warning Set when transceiver laser bias current exceeds high warning threshold 04 oo udo Tx Bias Low Warning Set when transceiver laser bias current exceeds low warning threshold Tx Power High Warning Set when transmitted average o
7. Wavelength c 840 860 nm Spectral Width rms o rms 0 65 nm Optical Rise Fall Time tr tf 60 ps 20 80 RIN 12 OMA RIN 128 dB Hz Transmitter Contributed DJ 25 ps 40 85 C Deterministic Jitter Note 3 2 457 to 7 3728 Gb s 18 ps 10 85 C Transmitter Contributed TJ 50 ps 40 85 C Total Jitter Note 4 5 2 457 to 7 3728 Gb s 40 ps 10 85 C Pout TX DISABLE Asserted Porr 35 dBm Notes 1 Max Pout is the lesser of Class 1 safety limits CDRH and EN 60825 or receiver power max 2 Into 50 125um 0 2 NA multi mode optical fiber 3 Contributed DJ is measured on an oscilloscope in average mode with 5096 threshold and K28 5 pattern 4 Contributed RJ is calculated for 1 10 12 BER by multiplying the RMS jitter measured on a single rise or fall edge from the oscilloscope by 14 5 In a network link each component s output jitter equals each component s input jitter combined with each component s contributed jitter Contributed DJ adds in a linear fashion and contributed RJ adds in a RMS fashion Table 7 Receiver Optical Characteristics TC 40 C to 85 VccT V cR 3 3V 10 Parameter Symbol Min Typ Max Unit Notes Input Optical Power Overdrive PIN 0 dBm avg Input Optical Modulation Amplitude OMA 76 uW oma 1x10712 BER Peak to Peak 2 457 to 7 3728 Gb s Note 1 Sensitivity 106 uW oma 1 10 15 BER Note 1 Return Loss 12 dB Loss of Signal Assert PA 30 dBm avg Note 2 Loss of Si
8. prior to shipment Tampering with modifying misusing or improperly handling the AFBR 57J7APZ will void the product warranty It may also result in improper operation and possibly overstress the laser source Performance deg radation or device failure may result Connection of the AFBR 57J7APZ to a light source not compliant with these specifications operating above maximum operating conditions or in a manner inconsistent with it s design and function may result in exposure to hazardous light radiation and may constitute an act of modifying or man 3 ufacturing a laser product Persons performing such an act are required by law to re certify and re identify the laser product under the provisions of U S 21 CFR Sub chapter J and TUV Ordering Information Please contact your local field sales engineer or one of Avago Technologies franchised distributors for ordering information For technical information please visit Avago Technologies WEB page at www Avago com or contact Avago Technologies Semiconductor Products Customer Response Center at 1 800 235 0312 For information related to SFF Committee documentation visit www sff committee org Regulatory Compliance The AFBR 57J7APZ complies with all applicable laws and regulations as detailed in Table 1 Certification level is dependent on the overall configuration of the host equipment The transceiver performance is offered as a figure of merit to assist the designer Electro
9. write command so 10 Table 10 Transceiver Digital Diagnostic Monitor Real Time Sense Characteristics 40 C to 85 C VecT VccR 3 3V 10 Parameter Symbol Min Units Notes Transceiver Internal TINT 3 0 C Temperature is measured internal to the transceiver Temperature Accuracy Valid from 40 C to 85 C case temperature Transceiver Internal Supply VINT 0 1 V Supply voltage is measured internal to the transceiver and Voltage Accuracy can with less accuracy be correlated to voltage at the SFP Vcc pin Valid over 3 3 V 1096 Transmitter Laser DC Bias liNT 47 10 90 lint is better than 10 of the nominal value Current Accuracy Transmitted Average Optical 3 0 dB Coupled into 50 125um multi mode fiber Output Power Accuracy Valid from 100 uW to 500 uW avg Received Average Optical PR 3 0 dB Coupled from 50 125um multi mode fiber Input Power Accuracy Valid from 76 uW to 500 uW avg Description of the Digital Diagnostic Data Transceiver Internal Temperature Temperature is measured on the AFBR 57J7APZ using sensing circuitry mounted on the internal PCB The measured temperature will generally be cooler than laser junction and warmer than SFP case and can be indirect ly correlated to SFP case or laser junction temperature using thermal resistance and capacitance modeling This measurement can be used to observe drifts in thermal operating point or to detec
10. AFBR 57J7APZ Digital Diagnostic SFP 850nm 6 144 7 3728 Gb s RoHS OBSAI CPRI Compatible Optical Transceiver Data Sheet Description Avago s AFBR 57J7APZ optical transceiver supports high speed serial links over multimode optical fiber at signaling rates up to 7 4 Gb s for wireless base station ap plications involving the OBSAI or CPRI protocols as well as related applications The transceiver is compliant with Small Form Pluggable SFP multi source agreements INF 8074 and SFF 8472 for mechanical and electrical specifi cations and FOCIS IEC specifications for optical duplex LC connectors As an enhancement to the conventional SFP interfaced defined in INF 8074 the AFBR 57J7APZ is compliant to SFF 8472 Digital Diagnostic Interface for Optical Trans ceivers Using the 2 wire serial interface defined in SFF 8472 the transceiver provides real time temperature supply voltage laser bias current laser average output power and received input power This information is in addition to conventional SFP base data The digital diag nostic interface also adds the ability to disable the trans mitter and monitor the status of transmitter fault and receiver loss of signal Related Products e AFBR 57J5APZ 850nm 3 3V LC SFP for CPRI OBSAI Applications e AFCT 57J5APZ 1310nm 3 3V LC SFP for CPRI OBSAI Applications e AFCT 57J5ATPZ 1310nm 3 3V LC SFP for CPRI OBSAI Applications e AFBR 57D7APZ 850nm 3 3V LC SFP for 8 5 4 25 2 125
11. B 2 36 Rx Pwr H Warning MSB 15 114 Reserved 11 Vcc L Alarm LSB 12 37 Rx Pwr H Warning LSB 5 115 Reserved 12 Vcc H Warning MSB 2 38 Rx Pwr L Warning MSB 5 116 Flag Bits See Table 15 13 Vcc H Warning LSB 2 39 Rx Pwr L Warning LSB 5 117 Flag Bits See Table 15 14 Vcc L Warning MSB 12 40 55 Reserved 118 127 Reserved 15 Vcc L Warning LSB 21 56 94 External Calibration Constants 6 128 247 Customer Writeable 16 Tx Bias H Alarm MSB 95 Checksum for Bytes 0 94 7 248 255 Vendor Specific 17 Tx Bias H Alarm LSB 3 96 Real Time Temperature MSB 11 18 Tx Bias L Alarm MSB 031 97 Real Time Temperature LSB 11 19 Tx Bias L Alarm LSB 3 98 Real Time Vcc MSB 2 20 Tx Bias H Warning MSB 3 99 Real Time Vcc LSB 21 21 Tx Bias H Warning LSB 8 100 Real Time Tx Bias MSB 3 22 Tx Bias L Warning MSB 101 Real Time Tx Bias LSB 3 23 Tx Bias L Warning LSB 13 102 Real Time Tx Power MSB M 24 Tx Pwr H Alarm MSB 41 103 Real Time Tx Power LSB 4 25 Tx Pwr Alarm LSB 4 Notes 1 Temperature Temp is decoded as a 16 bit signed twos compliment integer in increments of 1 256 degrees C 2 Supply Voltage Vcc is decoded as a 16 bit unsigned integer in increments of 100 uV 3 Laser bias current Tx Bias is decoded as a 16 bit unsigned integer in increments of 2 uA 4 Transmitted average optical power Tx Pwr is decoded as a 16 bit unsigned integer in increments of 0 1 uW 5 Received average optical power Rx Pwr is decoded as a 16 bit uns
12. Temperature limitations are based on the Case Operating Temperature limitations and are subject to the host system thermal design 2 Recommended Operating Conditions are those values for which functional performance and device reliability is implied Table 5 Transceiver Electrical Characteristics TC 40 C to 85 C VccR 3 3V 10 Parameter Symbol Minimum Typical Maximum Unit Notes AC Electrical Characteristics Power Supply Noise Rejection peak peak PSNR 100 mV Note 1 DC Electrical Characteristics Module supply current lcc 235 mA Power Dissipation Ppiss 0 825 W Low Speed Outputs VoH 2 0 VccT R 0 3 V Note 2 Transmit Fault TX FAULT Mol 0 8 V Loss of Signal LOS MOD DEF 2 Low Speed Inputs 20 Vcc V Note 3 Transmit Disable TX DIS Vi 0 08 MOD DEF 1 MOD DEF 2 Notes 1 Filter per SFP specification is required on host board to remove 10 Hz to 2 MHz content 2 Pulled up externally with a 4 7k 10kQ resistor on the host board to 3 3V 3 Mod Def1 and Mod Def2 must be pulled up externally with a 4 7k 10kQ resistor on the host board to 3 3V Table 6 Transmitter Optical Characteristics TC 40 C to 85 VccR 3 3V 10 Parameter Symbol Minimum Typical Maximum Unit Notes Modulated Optical Output Power Tx OMA 302 uW Note 2 OMA Peak to Peak Average Optical Output Power Pout 8 2 dBm Note 1 2 Center
13. The eye safety circuit continuously monitors the optical output power level and will disable the transmitter upon detecting an unsafe condition beyond the scope of Class 1 certifica tion Such unsafe conditions can be due to inputs from the host board Vcc fluctuation unbalanced code or a fault within the transceiver Receiver Section The receiver section includes the Receiver Optical Sub Assembly ROSA and the amplification quantization circuitry The ROSA containing a PIN photodiode and custom transimpedance amplifier is located at the optical interface and mates with the LC optical connector The ROSA output is fed to a custom IC that provides post amplification and quantization RD Receive Data Rx Loss Of Signal M b MoD DEF2 50 M 0 0 50 59 MOD DEFO q DISABLE TD Transmit Data i Safety Circuit TD Transmit Data Receiver Loss of Signal Rx 105 The post amplification IC also includes transition detection circuitry which monitors the ac level of incoming optical signals and provides a TTL CMOS com patible status signal to the host pin 8 An adequate optical input results in a low Rx LOS output while a high Rx LOS output indicates an unusable optical input The Rx LOS thresholds are factory set so that a high output indicates a definite optical fault has occurred Rx LOS can also be monitored via the two wire serial interface address A2h
14. UL 94V 0 flame retardant plastic Predictive Failure Identification The AFBR 57J7APZ predictive failure feature allows a host to identify potential link problems before system perfor mance is impacted Prior identification of link problems enables a host to service an application via fail over to a redundant link or replace a suspect device main taining system uptime in the process For applications where ultra high system uptime is required a digital SFP provides a means to monitor two real time laser metrics associated with observing laser degradation and pre dicting failure average laser bias current Tx_Bias and average laser optical power Tx Power Compliance Prediction Compliance prediction is the ability to determine if an optical transceiver is operating within its operating and environmental requirements AFBR 57J7APZ devices provide real time access to transceiver internal supply voltage and temperature allowing a host to identify potential component compliance issues Received optical power is also available to assess compliance of a cable Table 1 Regulatory Compliance plant and remote transmitter When operating out of re quirements the link cannot guarantee error free trans mission Fault Isolation The fault isolation feature allows a host to quickly pinpoint the location of a link failure minimizing downtime For optical links the ability to identify a fault at a local device remote device or c
15. Unique Identifier OUI assigned to Avago Technologies is 00 17 6A 3 bytes of hex 2 Laser wavelength is represented in 16 unsigned bits The hex representation of 850 nm is 0352 3 Addresses 63 and 95 are checksums calculated per SFF 8472 and SFF 8074 and stored prior to product shipment 4 Addresses 68 83 specify the AFBR 57J7APZ ASCII serial number and will vary on a per unit basis 5 Addresses 84 91 specify the AFBR 57J7APZ ASCII date code and will vary on a per date code basis 13 Table 13 EEPROM Serial ID Memory Contents Enhanced Feature Set Memory Address A2h Byte Byte Byte Decimal Notes Decimal Notes Decimal Notes 0 Temp H Alarm MSB 1 26 Tx Pwr L Alarm MSB 4 104 Real Time Rx Pwr MSB 5 1 Temp H Alarm LSB 11 27 Tx Pwr L Alarm LSB 41 105 Real Time Rx Pwr LSB 5 2 Temp L Alarm MSB 111 28 Tx Pwr Warning MSB 41 106 Reserved 3 Temp L Alarm LSB 11 29 Tx Pwr Warning LSB 41 107 Reserved 4 Temp H Warning MSB l 30 Tx Pwr L Warning MSB 4 108 Reserved 5 Temp H Warning LSB 111 31 Tx Pwr L Warning LSB 41 109 Reserved 6 Temp L Warning MSB 1 32 Rx Pwr H Alarm MSB 5 110 Status Control See Table 14 7 Temp L Warning LSB 11 33 Rx Pwr Alarm LSB 5 111 Reserved 8 Vcc Alarm MSB 2 34 Rx Pwr L Alarm MSB 5 112 Flag Bits See Table 15 9 Vcc Alarm LSB 2 35 Rx Pwr L Alarm LSB 15 113 Flag Bits See Table 15 10 Vcc L Alarm MS
16. able plant is crucial to speeding service of an installation AFBR 57J7APZ real time monitors of Tx Bias Tx Power Vcc Temperature and Rx Power can be used to assess local transceiver current operating conditions In addition status flags Tx Disable and Rx Loss of Signal LOS are mirrored in memory and available via the two wire serial interface Component Monitoring Component evaluation is a more casual use of the AFBR 57J7APZ real time monitors of Tx Bias Tx Power Vcc Temperature and Rx Power Potential uses are as debugging aids for system installation and design and transceiver parametric evaluation for factory or field qual ification For example temperature per module can be observed in high density applications to facilitate thermal evaluation of blades PCI cards and systems Feature Test Method Performance Electrostatic Discharge MIL STD 883C Method 3015 4 ESD to the Electrical Pins Class 1 2000 Volts Electrostatic Discharge Variation of IEC 61000 4 2 ESD to the Duplex LC Receptacle Typically no damage occurs with 25 kV when the duplex LC connector receptacle is contacted by a Human Body Model probe GR1089 10 contacts of 8 KV on the electrical faceplate with device inserted into a panel Electrostatic Discharge Variation of IEC 801 2 Air discharge of 15kV min contact to ESD to the Optical connector w o damage Connector Electromagnetic FCC Class B System m
17. alls below 10 of nominal 2 Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90 of nominal 3 Time from power on or falling edge of Tx_Disable to when the modulated optical output rises above 90 of nominal 4 From power on or negation of TX_FAULT using TX_DISABLE 5 TimeTX DISABLE must be held high to reset the laser fault shutdown circuitry 6 Time from loss of optical signal to Rx LOS Assertion 7 Time from valid optical signal to LOS De Assertion 8 Time from two wire interface assertion of TX DISABLE A2h byte 110 bit 6 to when the optical output falls below 1096 of nominal Measured from falling clock edge after stop bit of write transaction Time from two wire interface de assertion of TX DISABLE A2h byte 110 bit 6 to when the modulated optical output rises above 9096 of nominal 10 Time from fault to two wire interface TX FAULT A2h byte 110 bit 2 asserted 11 Time for two wire interface assertion of Rx LOS A2h byte 110 bit 1 from loss of optical signal 12 Time for two wire interface de assertion of Rx LOS A2h byte 110 bit 1 from presence of valid optical signal 13 From power on to data ready bit asserted A2h byte 110 bit 0 Data ready indicates analog monitoring circuitry is functional 14 Time from power on until module is ready for data transmission over the serial bus reads or writes over AOh and A2h 15 Time from stop bit to completion of a 1 8 byte
18. ame Function Description Notes 1 VeeT Transmitter Ground 2 TX_FAULT Transmitter Fault Indication High indicates fault condition Note 1 3 TX_DISABLE Transmitter Disable Module optical output disables on high or open Note 2 4 MOD DEF2 Module Definition 2 Two wire serial ID interface data line SDA Note 3 5 MOD DEF1 Module Definition 1 Two wire serial ID interface clock line SCL Note 3 6 MOD DEFO Module Definition 0 Grounded in module module present indicator Note 3 7 no connect Internal pullup 30KO to Vcc 8 RX LOS Loss of Signal High indicates loss of received optical signal Note 4 9 no connect Internal Pullup 30KO to Vcc 10 VeeR Receiver Ground 11 VeeR Receiver Ground 12 RD Inverse Received Data Out Note 5 13 RD Received Data Out Note 5 14 VeeR Receiver Ground 15 VccR Receiver Power 3 3 V Note 6 16 VccT Transmitter Power 3 3 V Note 6 17 VeeT Transmitter Ground 18 TD Transmitter Data In Note 7 19 TD Inverse Transmitter Data In Note 7 20 VeeT Transmitter Ground Notes T 2 TX FAULT is an open collector drain output which must be pulled up with a 4 7k 10kQ resistor on the host board When high this output indicates a laser fault of some kind Low indicates normal operation In the low state the output will be pulled to 0 8V TX DISABLE is an input that is used to shut down the transmitter optical output It is internally pulled up within the transceiver with a 6 8kQ resistor Low 0 0 8V Tr
19. ansmitter on Between 0 8V and 2 0V Undefined High 2 0 Vcc max or OPEN Transmitter Disabled The signals Mod Def 0 1 2 designate the two wire serial interface pins They must be pulled up with a 4 7k resistor on the host board Mod Def 0 is grounded by the module to indicate the module is present Mod Def 1 is serial clock line SCL of two wire serial interface Mod Def 2 is serial data line SDA of two wire serial interface RX LOS Rx Loss of Signal is an open collector drain output that must be pulled up with a 4 7k 10kQ resistor on the host board 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 RD designate the differential receiver outputs They AC coupled 1000 differential lines which should be terminated with 1000 differential at the host SERDES input AC coupling is done inside the transceiver and is not required on the host board The voltage swing on these lines will be between 370 and 850 mV differential 185 425 mV single ended when properly terminated VccR and VccT are the receiver and transmitter power supplies They are defined at the SFP connector pin The maximum supply current is 300 mA and the associated in rush current will typically be no more than 30 mA above steady state after 500 nanoseconds TD designate the
20. argins are dependent on customer Interference EMI CENELEC EN55022 Class B board and chassis design CISPR 22A VCCI Class 1 Immunity Variation of IEC 61000 4 3 Typically shows no measurable effect from a 10V m field swept from 10 MHz to 1 GHz Laser Eye Safety US FDA CDRH AEL Class 1 CDRH certification 8 9720151 072 and Equipment Type Testing GEPR FT T V Rheinland TPE Product Safety APPROVED and 1002 12 IEC EN60825 1 1994 A11 A2 IEC EN60825 2 1994 A1 US21 CFR Subchapter J per Paragraphs 1002 10 TUV file 72071411 EN60950 1992 A1 A2 A3 A4 A11 Component Recognition Underwriters Laboratories and Canadian Standards Association Joint Component Recognition for Information Technology Equipment Including Electrical Business Equipment UL File E173874 Tx DIS Tx FAULT Tx_DISABLE Tx_FAULT 4 7 kto 10 kQ LASER DRIVER SERDES IC PROTOCOL IC LOSS OF SIGNAL POST AMPLIFIER 4 7 k to 10 10 kQ 4 7 kto 10 MOD DEFO MOD DEF2 MODULE DETECT SCL SDA Figure 2 Typical Application Configuration 0 1 uF 10 uF a SFP MODULE HOST BOARD NOTE INDUCTORS MUST HAVE LESS THAN 1 C SERIES RESISTANCE TO LIMIT VOLTAGE DROP TO THE SFP MODULE Figure 3 Recommended Power Supply Filter Table 2 Pin Description Pin N
21. differential transmitter inputs They are AC coupled differential lines with 100Q differential termination inside the module The AC coupling is done inside the module and is not required on the host board The inputs will accept differential swings of 180 1200 mV 90 600 mV single ended Table 3 Absolute Maximum Ratings Parameter Symbol Minimum Maximum Unit Notes Storage Temperature Ts 40 100 C Note 1 2 Case Operating Temperature 40 100 aC Note 1 2 Relative Humidity RH 5 95 90 Note 1 Supply Voltage 0 5 3 8 V Note 1 2 3 Low Speed Input Voltage VIN 0 5 0 5 V Note 1 Notes 1 Absolute Maximum Ratings are those values beyond which damage to the device may occur if these limits are exceeded for other than a short period of time See Reliability Data Sheet for specific reliability performance 2 Between Absolute Maximum Ratings and the Recommended Operating Conditions functional performance is not intended device reliability is not implied and damage to the device may occur over an extended period of time 3 The module supply voltages VCCT and VCCR must not differ by more than 0 5V or damage to the device may occur Table 4 Recommended Operating Conditions Parameter Symbol Minimum Maximum Unit Notes Case Operating Temperature 40 85 C Note 1 2 Supply Voltage VecT R 2 97 3 63 V Note 2 Data Rate 1 288 7 3728 Gb s Note 2 Notes 1 The Ambient Operating
22. ensates for normal VCSEL parametric variations in quantum efficien Cy forward voltage and lasing threshold due to changing transceiver operating points Consistent increases in laser bias current observed at equilibrium temperature and supply voltage could be an indication of laser degrada tion For more information on using laser bias current for predicting laser lifetime contact Avago Technologies Transmitted Average Optical Output Power Transmitted average optical power is measured using sensing circuitry located on the transmitter laser driver IC and laser optical subassembly Variations in average optical power are not expected under normal operation because the AFBR 57J7APZ uses a closed loop laser bias feedback circuit to maintain constant optical power This circuit compensates for normal VCSEL parametric variations due to changing transceiver operating points Only under extreme laser bias conditions will significant drifting in transmitted average optical power be observ able Therefore it is recommended Tx average optical power be used for fault isolation rather than predictive failure purposes Received Average Optical Input Power Received average optical power is measured using detecting circuitry located on the receiver preamp and quantizer ICs Accuracy is 3 0 dB but typical accuracy is 2 0 dB This measurement can be used to observe magnitude and drifts in incoming optical signal level for detecting cable pla
23. gnal De Assert Pp 13 9 dBm avg Note 2 Loss of Signal Hysteresis Pp PA 0 5 dB Notes 1 Input Optical Modulation Amplitude commonly known as sensitivity requires a valid 8B 10B encoded input 2 These average power values are specified with an Extinction Ratio of 6dB The loss of signal circuitry responds to valid 8B 10B encoded peak to peak input optical power not average power Table 8 Transmitter and Receiver Electrical Characteristics TC 40 C to 85 C VccT VccR 3 3V 10 Parameter Symbol Minimum Typical Maximum Unit Notes High Speed Data Input Vi 180 1200 mV Note 1 Transmitter Differential Input Voltage TD High Speed Data Output Vo 370 850 mV Note 2 Receiver Differential Output Voltage RD Receiver Contributed Deterministic Jitter DJ 15 ps Note 3 7 2 457 to 7 3728 Gb s Receiver Contributed Total Jitter TJ 40 ps Note 4 2 457 to 7 3728 Gb s 6 7 Receiver Electrical Output Rise amp Fall Times Tr tf 30 85 ps Note 5 20 80 Notes 1 Internally AC coupled and terminated 100 Ohm differential 2 Internally AC coupled but requires an external load termination 100 Ohm differential 3 Contributed DJ is measured on an oscilloscope in average mode with 5096 threshold and K28 5 pattern 4 Contributed RJ is calculated for 1 10 12 BER by multiplying the RMS jitter measured on a single rise or fall edge from the oscilloscope by 14 5 2096 8096 electrical rise amp fall times measu
24. igned integer in increments of 0 1 uW 6 Bytes 55 94 are not intended for use with AFBR 57J7APZ but have been set to default values per SFF 8472 7 Byte95 is a checksum calculated per SFF 8472 and stored prior to product shipment 14 Table 14 EEPROM Serial ID Memory Contents Soft Commands Address A2h Byte 110 Bit Status Control Name Description Notes 7 TX_ DISABLE State Digital state of SFP TX_ DISABLE Input Pin 1 TX_DISABLE asserted Note 1 6 Soft TX_ DISABLE Read write bit for changing digital state of TX_DISABLE function Note 1 2 5 reserved 4 reserved 3 reserved 2 TX_FAULT State Digital state of the SFP TX_FAULT Output Pin 1 2 TX FAULT asserted Note 1 1 RX_LOS State Digital state of the SFP RX_LOS Output Pin 1 RX_LOS asserted Note 1 0 Data Ready Bar Indicates transceiver is powered and real time sense data is ready 0 Note 1 Ready Notes 1 The response time for soft commands of the AFBR 57J7APZ is 100 msec as specified by the MSA SFF 8472 2 Bit 6 is logic with the SFP TX DISABLE input pin 3 either asserted will disable the SFP transmitter Table 15 EEPROM Serial ID Memory Contents Alarms and Warnings Address A2h Bytes 112 113 116 117 Flag Bit Name Description Temp High Alarm Set when transceiver internal temperature exceeds high alarm threshold Temp Low Alarm Set when transceiver internal temperature exceeds low alarm threshold Vcc
25. l Tx_Disable can also be asserted via the two wire serial interface address A2h byte 110 bit 6 and monitored address A2h byte 110 bit 7 i n Receiver i 2 Optical Interface i Amplification Light from Fiber gt _ Photo Detector Ae 1 Quantization te MOROL STL SE SESE EOE OIDA DEST SETS SE SD EOE ee EEPROM CONTROLLER EEPROM EROE 4 Laser Driver amp ae Figure 1 Transceiver Functional Diagram 2 H Electrical Interface E Rate Select i i y RD Receive Data i The contents of A2h byte 110 bit 6 are logic OR d with hardware Tx_Disable pin 3 to control transmitter operation Transmit Fault Tx_Fault A catastrophic laser fault will activate the transmitter signal TX_FAULT and disable the laser This signal is an open collector output pull up required on the host board A low signal indicates normal laser operation and a high signal indicates a fault The TX_FAULT will be latched high when a laser fault occurs and is cleared by toggling the TX_DISABLE input or power cycling the transceiver The transmitter fault condition can also be monitored via the two wire serial interface address A2 byte 110 bit 2 Eye Safety Circuit The AFBR 57J7APZ provides Class 1 single fault tolerant eye safety by design and has been tested for compliance with the requirements listed in Table 1
26. nt or remote transmitter problems 3 15V TX_FAULT TX_DISABLE TRANSMITTED SIGNAL t init t init TX DISABLE NEGATED Vcc gt 3 15V TX_FAULT TX_DISABLE TRANSMITTED SIGNAL t init t init TX DISABLE ASSERTED gt 3 15V TX_FAULT N TX_DISABLE TRANSMITTED SIGNAL t init INSERTION TX FAULT TX DISABLE TRANSMITTED SIGNAL al ton e t init TX DISABLE NEGATED MODULE HOT PLUGGED t off amp t on TX DISABLE ASSERTED THEN NEGATED OCCURANCE OF FAULT mur 22120 TX_DISABLE TRANSMITTED SIGNAL t_fault t fault TX FAULT ASSERTED TX SIGNAL NOT RECOVERED OCCURANCE OF FAULT TX_FAULT TX_DISABLE TRANSMITTED SIGNAL t_reset SFP SHALL CLEAR TX_FAULT IN lt t_init IF THE FAILURE IS TRANSIENT t reset TX DISABLE ASSERTED THEN NEGATED TX SIGNAL RECOVERED OCCURANCE OF FAULT 7 TX_FAULT TX_DISABLE TRANSMITTED SIGNAL t_fault H t_reset SFP SHALL CLEAR TX_FAULT IN a t init lt t_init IF THE FAILURE IS TRANSIENT il OCCURANCE OPTICAL SIGNAL OF LOSS LOS t_loss_on t_loss_off t fault TX DISABLE ASSERTED THEN NEGATED TX SIGNAL NOT RECOVERED Figure 4 Transceiver Timing Diagrams Module Installed Except Where Noted 12 t loss on amp t loss off Table 12 EEPROM Serial ID Memory Contents Conventional SFP Memory Address A0h
27. ptical power exceeds high warning threshold Tx Power Low Warning Set when transmitted average optical power exceeds low warning threshold Rx Power High Warning Set when received average optical power exceeds high warning threshold Rx Power Low Warning Set when received average optical power exceeds low warning threshold reserved m 55 3 02 BVaGO AFBR 57 7APZ Aww haa 13 40 1 Jr 1 91 DEVICE SHOWN WITH DUST CAP AND BAIL DELATCH 1 39 UNCOMPRESSED laf 85 01 0 55 UNCOMPRESSED i 625 005 f 13 6 1 5 14 9 UNCOMPRESSED Figure 5 Module drawing 16 lt 4 34 5 10 1 05 0 01 o 1 XA A 16 25 MIN PITCH PCB A Y 16 25 PUN 11 08 1 Y Y gt WY 10 3x 0 85 0 05 0 1 SK Y LU 3 68 IL ADAC ZRF 2 A 20 PINT E 11 93 YA 4 8 SEE DETAIL 1 9 0 95 0 05
28. red with a 500 MHz signal utilizing a 1010 data pattern 6 In a network link each component s output jitter equals each component s input jitter combined with each component s contributed jitter Contributed DJ adds in a linear fashion and contributed RJ adds in a RMS fashion 7 Measured at an input optical power of 154uW OMA Table 9 Transceiver SOFT DIAGNOSTIC Timing Characteristics 40 C to 85 C VccT VccR 3 3V 10 Parameter Symbol Minimum Maximum Unit Notes Hardware TX_DISABLE Assert Time t_off 10 Us Note 1 Hardware TX_DISABLE Negate Time t_on 1 ms Note 2 Time to initialize including reset of TX_FAULT t_init 300 ms Note 3 Hardware TX_FAULT Assert Time t_fault 100 us Note 4 Hardware TX_DISABLE to Reset t_reset 10 us Note 5 Hardware RX_LOS DeAssert Time t_loss_on 100 us Note 6 Hardware RX_LOS Assert Time t_loss_off 100 Us Note 7 Software TX_DISABLE Assert Time t_off_soft 100 ms Note 9 Software TX_DISABLE Negate Time t_on_soft 100 ms Note 10 Software Tx_FAULT Assert Time t_fault_soft 100 ms Note 11 Software Rx_LOS Assert Time t_loss_on_soft 100 ms Note 12 Software Rx_LOS De Assert Time t_loss_off_soft 100 ms Note 13 Analog parameter data ready t_data 1000 ms Note 15 Serial bus hardware ready t_serial 300 ms Note 16 Write Cycle Time t_write 10 ms Note 17 Serial ID Clock Rate f_serial_clock 100 kHz Notes 1 Time from rising edge of TX DISABLE to when the optical output f
29. static Discharge ESD The AFBR 57J7APZ is compatible with ESD levels found in typical manufacturing and operating environments as described in Table 1 In the normal handling and operation of optical transceivers ESD is of concern in two circumstances The first case is during handling of the transceiver prior to insertion into an SFP compliant cage To protect the device it s important to use normal ESD handling precau tions These include using of grounded wrist straps work benches and floor wherever a transceiver is handled The second case to consider is static discharges to the exterior of the host equipment chassis after installation If the optical interface is exposed to the exterior of host equipment cabinet the transceiver may be subject to system level ESD requirements Electromagnetic Interference EMI Equipment incorporating gigabit transceivers is typically subject to regulation by the FCC in the United States CENELEC EN55022 CISPR 22 in Europe and VCCI in Japan The AFBR 57J7APZ s compliance to these standards is detailed in Table 1 The metal housing and shielded design of the AFBR 57J7APZ minimizes the EMI challenge facing the equipment designer EMI Immunity Susceptibility Due to its shielded design the EMI immunity of the AFBR 57J7APZ exceeds typical industry standards Flammability The AFBR 57J7APZ optical transceiver is made of metal and high strength heat resistant chemical resistant and
30. t extreme temperature fluctu ations such as a failure in the system thermal control For more information on correlating internal temperature to case or laser junction contact Avago Technologies Transceiver Internal Supply Voltage Supply voltage is measured on the AFBR 57J7APZ using sensing circuitry mounted on the internal PCB Transmit supply voltage VccT is monitored for this readback The resultant value can be indirectly correlated to SFP VccT or VccR pin supply voltages using resistance modeling but not with the required accuracy of SFF 8472 Supply voltage as measured will be generally lower than SFP Vcc pins due to use of internal transient suppression circuitry As such measured values can be used to observe drifts in supply voltage operating point be empirically correlated to SFP pins in a given host application or used to detect supply voltage fluctuations due to failure or fault in the system power supply environment For more information on correlating internal supply voltage to SFP pins contact Avago Technologies Transmitter Laser DC Bias Current Laser bias current is measured using sensing circuitry located on the transmitter laser driver IC Normal varia tions in laser bias current are expected to accommo date the impact of changing transceiver temperature 11 and supply voltage operating points The AFBR 57J7APZ uses a closed loop laser bias feedback circuit to maintain constant optical power This circuit comp
31. w digital diagnostic information bytes 0 255 at memory address 2 is compliant to SFF 8472 The new diag nostic information provides the opportunity for Predic tive Failure Identification Compliance Prediction Fault Isolation and Component Monitoring Transmitter Section The transmitter section includes consists of the Transmit ter Optical SubAssembly TOSA and laser driver circuitry The TOSA containing an 850nm VCSEL Vertical Cavity Surface Emitting Laser light source is located at the optical interface and mates with the LC optical connector The TOSA is driven by a custom IC which uses the incoming differential high speed logic signal to modulate the laser diode driver current This Tx laser driver circuit regulates the optical power at a constant level provided the incoming data pattern is dc balanced 8B 10B code for example Transmit Disable Tx Disable The AFBR 57J7APZ accepts a TTL and CMOS compatible transmit disable control signal input pin 3 which shuts down the transmitter optical output A high signal im plements this function while a low signal allows normal transceiver operation In the event of a fault e g eye safety circuit activated cycling this control signal resets the module as depicted in Figure 4 An internal pull up resistor disables the transceiver transmitter until the host pulls the input low Host systems should allow a 10ms interval between successive assertions of this control signa

AVAGO TECHNOLOGIES AFBR-57J7APZ handbook

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