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Texas Instruments ONET1131EC User Manual Download Page 7

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Measurement Setup

7

SLLU256 – October 2016

Submit Documentation Feedback

Copyright © 2016, Texas Instruments Incorporated

ONET1131EC Evaluation Module

10. Run the GUI by clicking the ONET1130EC GUI shortcut icon on the desktop. The

Low Level Register

Interface

page appears (

Figure 6

).

NOTE:

The ONET1130EC EVM GUI software works with the ONET1131EC EVM.

Figure 6. Low Level Register Interface Page

Summary of Contents for ONET1131EC

Page 1: ...e images are representative of the boards and parts on the ONET1131EC spacer Contents 1 Hardware and Equipment 2 2 EVM Block Diagram 2 3 EVM Connections 3 4 Measurement Setup 6 4 1 Open Loop Operation Without Fault Detection or Digital Monitoring 8 4 2 Closed Loop Operation with Fault Detection and Digital Monitoring 10 5 LED Indicators 13 6 Typical Performance Results 13 7 Schematics and Bill of ...

Page 2: ...2 ONET1131EC EVM Bill of Materials 18 1 Hardware and Equipment The following hardware and equipment are required to evaluate the EVM 1 A ONET1131EC EVM 2 An XMD compliant EML TOSA 3 A USB Dongle 4 A USB cable with standard A to mini B connector 5 A PC with USB A port 6 RF cables with SMA connectors 7 An external thermoelectric controller 8 Single mode fiber patch cords 9 Electrical cables with ban...

Page 3: ...er Source www ti com EVM Connections 3 SLLU256 October 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ONET1131EC Evaluation Module 3 EVM Connections Figure 2 shows the location of the major inputs and outputs on the EVM board Figure 2 ONET1131EC EVM Connections ...

Page 4: ...ts Incorporated ONET1131EC Evaluation Module The customer must supply a ROSA and TOSA In addition connections for the EML bias voltage and TEC controller are also required Figure 3 shows the locations for the ROSA and TOSA EML bias voltage TOSA thermistor and the TEC and TEC connections to the TEC controller Figure 3 TOSA and EML Connections for TEC Controller ...

Page 5: ...on Feedback Copyright 2016 Texas Instruments Incorporated ONET1131EC Evaluation Module Figure 4 shows the main connections except those for the EML bias and TEC controller ROSA and Receiver connections are not available on the ONET131EC EVM Figure 4 Main EVM Connections ...

Page 6: ...ps and 11 7 Gbps Set the amplitude between 100 mVp p differential and 1000 mVp p differential 4 Connect the USB dongle to the EVM and attach the interface cable from the USB port of the computer to the mini B USB port of the dongle 5 Apply a 2 5 V supply to the 2 5 V banana jack and the supply ground to the GND banana jack 6 Apply a negative bias voltage in the range of 0 4 V to 1 5 V for the EML ...

Page 7: ...Texas Instruments Incorporated ONET1131EC Evaluation Module 10 Run the GUI by clicking the ONET1130EC GUI shortcut icon on the desktop The Low Level Register Interface page appears Figure 6 NOTE The ONET1130EC EVM GUI software works with the ONET1131EC EVM Figure 6 Low Level Register Interface Page ...

Page 8: ...Detection or Digital Monitoring The following steps are provided for open loop operation without fault detection or digital monitoring 1 TI recommends initially operating the TOSA in open loop mode with fault detection disabled 2 Go to the Core Configuration page as shown in Figure 7 Figure 7 Core Configuration Page 3 Set the TX Bias Current Control to Open Loop 4 Enable the Laser Bias Current ...

Page 9: ...6 Set TX Output Mode to Single Ended Mode OUTP using the pull down box 7 Set the desired TX Laser Bias Current with the slider 8 Set the desired Transmitter Modulation Current with the slider 9 Adjust the TX Cross Point with the slider 10 If the transmitter modulation current is less than approximately 0xC0 then TI recommends using the slow edge speed mode as selected with the TX edge speed select...

Page 10: ...r between pins 1 and 2 of JMP26 to supply 2 5 V to the photodiode current mirror 2 Go to the Core Configuration page as shown in Figure 9 Figure 9 Core Configuration Page 3 Disable the laser bias current to prevent a fault from occurring when the Fault Detection is enabled 4 Select Enable Fault Detection and Enable the Fault Trigger on MONP Pin 5 Set the TX Bias Current Control to Closed Loop and ...

Page 11: ...ired TX Laser Bias Current Transmitter Modulation Current and TX Cross Point TX Eye Cross Point Adjust 13 In the Monitor Fault Threshold box reduce the Bias Current fault threshold slider until a fault occurs Increase the Bias Current fault threshold level at least by a value of 16 14 Go to the Core Configuration page and toggle the Enable Laser Bias Current bit This disables the fault and restore...

Page 12: ...ight 2016 Texas Instruments Incorporated ONET1131EC Evaluation Module 17 To read the value from the ADC go to the Read Only Status page as shown in Figure 11 Figure 11 Read Only Status Page 18 Click the Refresh button and read the value of the Output Representation of the ADC Input Source ...

Page 13: ...d On The transmit CDR or the receive CDR has indicated Loss of Lock LOL 6 Typical Performance Results A typical set of conditions for operating the EVM are as follows 10 71 Gbps PRBS31 Pattern Transmitter Single Ended Mode of Operation TOSA Temperature 37 C Vea 0 65 V Laser Bias Current 0xF0 approximately 53 mA Transmitter Modulation Current 0xB0 Transmitter Cross Point 0xB0 TX and RX CDRs Enabled...

Page 14: ... ti com 14 SLLU256 October 2016 Submit Documentation Feedback Copyright 2016 Texas Instruments Incorporated ONET1131EC Evaluation Module A typical filtered eye diagram is shown in Figure 13 Figure 13 Filtered Transmitter Eye Diagram ...

Page 15: ...20 DNI 100pF C19 DNI 0 1uF L16 U1K ONET1131Ex VDD 15 C46 0 1uF L8 JMP6 2 Pin Header 1 2 C31 1uF C12 0 1uF C15 22uF C26 10uF P1 Banana Jack 1 JMP3 DNI 2 Pin Header 1 2 C48 1uF C22 22uF C32 0 1uF C23 10uF L14 C37 100pF C36 0 1uF L15 C11 0 1uF U1E ONET1131Ex VCC_RX1 27 VCC_RX2 30 C17 DNI 10uF JMP4 2 Pin Header 1 2 JMP5 2 Pin Header 1 2 C18 DNI 1uF C28 0 1uF P2 Banana Jack 1 TPS60400 U4 IN 2 OUT 1 GND...

Page 16: ...XINP 4 TXINN 5 J2 DNI sma_edge U1B ONET1131Ex TXOUTN 12 TXOUTP 13 C10 0 1uF C7 0 1uF R4 50 C1 DNI 0 1uF JMP15 DNI 2 Pin Header 1 2 J3 sma_edge JMP2 Header 2x2 1 3 2 4 R45 DNI_0 L4 L1 R47 DNI_0 C3 DNI 0 1uF L2 R7 100 C52 DNI 0 1uF EML_TOSA P4 LD ANODE 7 PD ANODE 6 GND 5 MOD ANODE 4 GND1 3 TEC 2 THERMISTOR 8 TEC 1 C5 0 1uF U1C ONET1131Ex RXINN 21 RXINP 20 U1D ONET1131Ex RXOUTN 28 RXOUTP 29 C53 0 1uF...

Page 17: ...1 VCCI 15 RESET 1 VCCP 14 GND 6 ADDR 16 SCL 12 SDA 13 P00 2 P01 3 P02 4 P03 5 P04 7 P05 8 P06 9 P07 10 GND_PP 17 JMP13 1 2 R24 DNI_10K D2 DNI RED 2 1 R14 0 Q3 MMSTA55 3 2 1 JMP9 Header 4x2 1 3 5 7 2 4 6 8 R40 DNI 0 C39 1uF R13 DNI 0 C44 2200pF C40 0 1uF R21 DNI_4 99K Q2 MMSTA55 3 2 1 JMP20 DNI Header 2x2 1 3 2 4 R15 10K U1L ONET1131Ex MONB 2 MONP 8 COMP 23 R33 0 R26 0 Q5 FDV301N G S D R51 4 99K R3...

Page 18: ...71C104KA88J Murata Electronics North America 0402 0 10µF 16V Ceramic Capacitor X7R 0402 1005 Metric 0 039 L x 0 020 W 1 00mm x 0 50mm 10 0 C19 C50 C52 DNI 0 1uF GRM155R71C104KA88J Murata Electronics North America 0402 0 10µF 16V Ceramic Capacitor X7R 0402 1005 Metric 0 039 L x 0 020 W 1 00mm x 0 50mm 11 6 C24 C27 C31 C35 C39 C8 1uF GRM155R61A105KE15D Murata Electronics North America 0402 1µF 10V C...

Page 19: ...R_THVT_2x2_100 4 Positions Header Unshrouded Connector 0 100 2 54mm Through Hole Tin 39 0 JMP20 DNI 0 1x0 1 Header 2x2 67997 404HLF Amphenol HDR_THVT_2x2_100 4 Positions Header Unshrouded Connector 0 100 2 54mm Through Hole Tin 40 1 JMP9 0 1x0 1 Header 2x4 TSW 150 08 G S Samtec HDR_THVT_2X4_100 50 Positions Header Unshrouded Connector 0 100 2 54mm Through Hole Gold 41 2 J5 J3 Edge Launch SMA 32K24...

Page 20: ...c SOT_323 3 TRANS PNP 60V 0 5A SC70 3 57 1 Q1 DMC20201 DMC20201 Panasonic SOT23_5 TRANS 2NPN 50V 0 1A MINI5 58 1 U1 ONET1131Ex ONET1131ECRSMT Texas Instruments ONET1130Ex_QFN32 Note TI will supply 59 1 U2 TCA6408A_RGT TCA6408ARGTR Texas Instruments QFN_16_3MSQ IC I O EXPANDER I2C 8B 16QFN 60 1 U3 TMP422 TMP422AIDCNT Texas Instruments DCN_SOT23 8 SENSOR TEMPERATURE SMBUS SOT23 8 61 1 U4 TPS60400 TP...

Page 21: ...ring the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warranted for the remainder of the original warranty period Replaced EVMs shall be warranted for a new full ninety 90 day warranty period 3 ...

Page 22: ... by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la rég...

Page 23: ... connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even with the inputs and outputs kept within the specified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors cu...

Page 24: ...F REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED 8 2 Specific Limitations IN NO EVENT SHALL T...

Page 25: ...y set forth above or credit User s account for such EVM TI s liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repair such EVM or provide replacements Repaired EVMs shall be warr...

Page 26: ...the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated Antenna types not included in this list having a gain greater than the maximum gain indicated for that type are strictly prohibited for use with this device Concernant les EVMs avec antennes détachables Conformément à la réglementation d Industrie Canada le présent émetteur radio peut fo...

Page 27: ...ed loads Any loads applied outside of the specified output range may also result in unintended and or inaccurate operation and or possible permanent damage to the EVM and or interface electronics Please consult the EVM user guide prior to connecting any load to the EVM output If there is uncertainty as to the load specification please contact a TI field representative During normal operation even ...

Page 28: ...COST OF REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE LOSS OF DATA OR BUSINESS INTERRUPTION NO CLAIM SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE 12 MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED 8 2 Specif...

Page 29: ... TI Resource NO OTHER LICENSE EXPRESS OR IMPLIED BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT AND NO LICENSE TO ANY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT OF TI OR ANY THIRD PARTY IS GRANTED HEREIN including but not limited to any patent right copyright mask work right or other intellectual property right relating to any combination machine or process in which TI product...

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