High Speed Characterization Report EQRD-XXX-XX.XX-TTR-STL-1 Mated with: QRF8-XXX-05.0-L-D-A and QRM8-XXX-05.0-L-D-A Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Table of Contents Cable Assembly Overview .............................................................................................. 1 Cable Assembly Speed Rating ........................................................................................ 2 Eye Pattern Summary ..................................................................................................... 3 Frequency Domain Data Summary ................................................................................. 7 Bandwidth Chart – Single-Ended & Differential Insertion Loss .................................... 9 Time Domain Data Summary ........................................................................................ 11 Characterization Details ................................................................................................ 14 Differential and Single-Ended Data............................................................................ 14 Cable assembly Signal to Ground Ratio .................................................................... 14 Eye Diagram Data ..................................................................................................... 16 Frequency Domain Data ............................................................................................ 16 Time Domain Data ..................................................................................................... 16 Appendix A – Eye Diagrams ......................................................................................... 18 Appendix B – Frequency Domain Response Graphs .................................................... 26 Single-Ended Application – Insertion Loss ................................................................ 26 Single-Ended Application – Return Loss ................................................................... 27 Single-Ended Application – NEXT Configurations ..................................................... 28 Single-Ended Application – FEXT Configurations ..................................................... 30 Differential Application – Insertion Loss ..................................................................... 32 Differential Application – Return Loss ........................................................................ 33 Differential Application – NEXT Configurations ......................................................... 34 Differential Application – FEXT Configurations .......................................................... 36 Differential Application – Differential to Common Mode Conversion.......................... 38 Appendix C – Time Domain Response Graphs ............................................................. 39 Single-Ended Application – Input Pulse ..................................................................... 39 Single-Ended Application – Cable Assembly Impedance .......................................... 39 Single-Ended Application – Cable assembly Impedance........................................... 40 Single-Ended Application – Propagation Delay ......................................................... 42 Differential Application – Input Pulse ......................................................................... 43 Differential Application – Cable Assembly Impedance............................................... 44 Differential Application – Cable assembly Impedance ............................................... 45 Differential Application – Propagation Delay .............................................................. 47 Appendix D – Product and Test System Descriptions ................................................... 48 Product Description ................................................................................................... 48 Test System Description ............................................................................................ 48 PCB-102285-TST-XX Test Fixtures........................................................................... 48 PCB Fixtures ............................................................................................................. 50 Appendix E – Test and Measurement Setup ................................................................. 51 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:ii Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable N5230C Measurement Setup .................................................................................... 51 Test Instruments ........................................................................................................ 51 Test Cables & Adapters ............................................................................................. 51 DSA8200 Measurement Setup .................................................................................. 52 Test Instruments ........................................................................................................ 52 Test Cables & Adapters ............................................................................................. 52 Appendix F - Frequency and Time Domain Measurements .......................................... 53 Eye Diagram Procedures ........................................................................................... 53 Eye Mask ............................................................................................................... 54 Rise Time ............................................................................................................... 54 Frequency (S-Parameter) Domain Procedures ......................................................... 55 Time Domain Procedures .......................................................................................... 57 Propagation Delay (TDT) ....................................................................................... 57 Impedance (TDR)................................................................................................... 57 Appendix G – Glossary of Terms .................................................................................. 58 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:iii Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Cable Assembly Overview The 0.8 mm (.0315") EQRD Cable Assembly is constructed using 34 AWG micro ribbon coax cable with double row structure. The cable assembly connectors are of the vertical mount type (DV). The EQRD series cable assemblies are available in 26, 52 and 78 positions per row and 43.69 mm (1.72") length minimum. The data in this report is only applicable to 250 mm and 1000 mm length cable assembly. The test sample consists of two micro coaxial ribbon cables that contain 26 lines each. At each end of the cable there is a connector that is terminated to a small transition PCB. Each connector is soldered to its respective PCB. The connector terminals are on 0.8 mm centers. The cable assembly is wired to facilitate a Pin 1 to Pin 1 mapping between the cable terminations. The EQRD cable assemblies were tested by mating to a QRF8 Socket at End 1 and to a QRM8 header at End 2. One sample of each length assembly was tested. The actual part numbers that were tested are shown in Table 1, which also identifies End 1 and End 2 of each assembly. A relative sample picture is shown in Figure1. Two singleended lines and two differential pairs, a Long Path and a Short Path each, of each assembly type were tested. Length Part Number End 1 250 mm EQRD-026-09.80-TTR-STL-1 TTR 1000 mm EQRD-026-39.37-TTR-STL-1 TTR Table 1: Sample Description End 2 STL STL 1 1 EQRD-026-XX.XX-TTR-STL-1 N‐1 N‐1 Figure 1: Test Sample Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:1 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Cable Assembly Speed Rating The cable assembly Speed Rating is based on the -7 dB insertion loss point of the mated cable assembly. The -7 dB point can be used to estimate usable system bandwidth in a typical two-level signaling environment. To calculate the Speed Rating, the measured -7 dB point is rounded up to the nearest half-GHz level. The up-rounding corrects for any loss from the test board traces. The resulting loss value is then doubled to determine the approximate maximum data rate in Gigabits per second (Gbps). The following table summarizes the Cable Assembly Speed Ratings for the EQRD cable assemblies tested. Assembly EQRD-026-09.80TTR-STL-1 EQRD-026-39.37TTR-STL-1 -7 dB Frequency Long Row 4.5 GHz Single-Ended Short Row 4.0 GHz Long Row 6.5 GHz Differential Short Row 6.0 GHz Long Row 3.0 GHz Single-Ended Short Row 2.5 GHz Long Row 5.5 GHz Differential Short Row 5.0 GHz Table 2: Cable Assembly Speed Rating Speed Rating 9 Gbps 8 Gbps 13 Gbps 12 Gbps 6 Gbps 5 Gbps 11 Gbps 10 Gbps The Samtec Speed Rating is best considered a figure of merit for comparing relative performance between cable assemblies. The Speed Rating becomes less meaningful in systems using multi-level signaling or where crosstalk or impedance mismatch are more critical parameters. Modern high-speed digital transceivers can accommodate roughly 9 dB of loss and still operate reliably. The -7 dB rating is a conservative number that allocates 2 dB of system budget for other channel components such as short PCB traces and IC packaging effects. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:2 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Eye Pattern Summary EQRD-026-09.80-TTR-STL-1 Single-Ended Long Row Output Eye: 9 Gbps Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Short Row Output Eye: 8 Gbps WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:3 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-09.80-TTR-STL-1 Differential Long Row Output Eye: 13 Gbps Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Short Row Output Eye: 12 Gbps WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:4 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-39.37-TTR-STL-1 Single-Ended Long Row Output Eye: 6 Gbps Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Short Row Output Eye: 5 Gbps WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:5 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-39.37-TTR-STL-1 Differential Long Row Output Eye: 11 Gbps Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Short Row Output Eye: 10 Gbps WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:6 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Frequency Domain Data Summary Table 3 – Single-Ended Cable System Performance Test Parameter Insertion Loss Return Loss Near-End Crosstalk Far-End Crosstalk Configuration Driver Receiver Long Row TTR_26 STL_26 7dB@ 4.31 GHz 7dB@ 2.54 GHz Short Row TTR_1 STL_1 7dB@ 3.73 GHz 7dB@ 2.25 GHz Long Row TTR_26 TTR_26 >10dB to 4.33 GHz >10dB to 4.99 GHz Short Row TTR_1 TTR_1 >10dB to 1.63 GHz >10dB to 1.6 GHz In Row: Long Row TTR_26 TTR_28 <-20dB to 0.3 GHz <-20dB to 0.23 GHz Across Row TTR_26 TTR_25 <-20dB to 16.2 GHz <-20dB to 16.21 GHz In Row: Short Row TTR_1 TTR_3 <-20dB to 0.31 GHz <-20dB to 0.31 GHz Across Row TTR_1 TTR_2 <-20dB to 8.51 GHz <-20dB to 8.5 GHz In Row: Long Row TTR_26 STL_28 <-20dB to 0.51 GHz <-20dB to 0.49 GHz Across Row TTR_26 STL_25 <-20dB to 20 GHz <-20dB to 20 GHz In Row: Short Row TTR_1 STL_3 <-20dB to 0.54 GHz <-20dB to 0.5 GHz Across Row TTR_1 STL_2 <-20dB to 11.33 GHz <-20dB to 20 GHz Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:7 0.25m 1m Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Table 4 – Differential Cable System Performance Test Parameter Insertion Loss Return Loss Near-End Crosstalk Far-End Crosstalk Configuration Driver Receiver Long Row TTR_26,28 STL_26,28 7dB@ 6.25 GHz 7dB@ 5.19 GHz Short Row TTR_1,3 STL_1,3 7dB@ 5.53 GHz 7dB@ 4.58 GHz Long Row TTR_26,28 TTR_26,28 >10dB to 1.15 GHz >10dB to 1.48 GHz Short Row TTR_1,3 TTR_1,3 >10dB to 1.18 GHz >10dB to 2.16 GHz In Row: Long Row TTR_26,28 TTR_30,32 <-20dB to 1.64 GHz <-20dB to 2.95 GHz Across Row TTR_26,28 TTR_25,27 <-20dB to 18.8 GHz <-20dB to 18.8 GHz In Row: Short Row TTR_1,3 TTR_5,7 <-20dB to 2.1 GHz <-20dB to 2.2 GHz Across Row TTR_1,3 TTR_2,4 <-20dB to 19.85 GHz <-20dB to 19.85 GHz In Row: Long Row TTR_26,28 STL_30,32 <-20dB to 9.46 GHz <-20dB to 20 GHz Across Row TTR_26,28 STL_25,27 <-20dB to 20 GHz <-20dB to 20 GHz In Row: Short Row TTR_1,3 STL_5,7 <-20dB to 4.49 GHz <-20dB to 20 GHz Across Row TTR_1,3 STL_2,4 <-20dB to 20 GHz <-20dB to 20 GHz Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:8 0.25m 1m Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Bandwidth Chart – Single-Ended & Differential Insertion Loss Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:9 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:10 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Time Domain Data Summary Cable Assembly Test Board Test Board 0.25m: Single-Ended Application - Impedance Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Cable Assembly Test Board Test Board 0.25m: Differential Application - Impedance WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:11 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Cable Assembly Test Board Test Board 1m: Single-Ended Application - Impedance Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Cable Assembly Test Board Test Board 1m: Differential Application - Impedance WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:12 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Table 5 - Propagation Delay (Cable Assembly) Driver/ Receiver Cable length Driver/ Receiver Driver/ Receiver Driver/ Receiver TTR_26/ STL_26 TTR_1/ STL_1 TTR_26,28/ STL_26,28 TTR_1,3/ STL_1,3 0.25m 1.359ns 1.249ns 1.324ns 1.224ns 1m 4.539ns 4.471ns 4.499ns 4.414ns Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:13 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Characterization Details This report presents data that characterizes the signal integrity response of a cable assembly in a controlled printed circuit board (PCB) environment. All efforts are made to reveal typical best-case responses inherent to the system under test (SUT). In this report, the SUT includes the mating connectors, cable assembly, and footprint effects on a typical multi-layer PCB. PCB effects (trace loss) are de-embedded from test data. Board related effects, such as pad-to-ground capacitance, are included in the data presented in this report. Additionally, intermediate test signal connections can mask the cable assembly’s true performance. Such connection effects are minimized by using high performance test cables and adapters. Where appropriate, calibration and de-embedding routines are also used to reduce residual effects. Differential and Single-Ended Data Most Samtec cable assemblies can be used successfully in both differential and singleended applications. However, electrical performance will differ depending on the signal drive type. In this report, data is presented for “S” single-ended and “SS” differential drive configurations. Cable assembly Signal to Ground Ratio Samtec cable assemblies are most often designed for generic applications and can be implemented using various signal and ground pin assignments. In high speed systems, provisions must be made in the interconnect for signal return currents. Such paths are often referred to as “ground”. In some cable assemblies, a ground plane or blade, or an outer shield, is used as the signal return, while in others, cable assembly pins are used as signal returns. Various combinations of signal pins, ground blades, and shields can also be utilized. Electrical performance can vary significantly depending upon the number and location of ground pins. In general, the more pins dedicated to ground, the better electrical performance will be. But dedicating pins to ground reduces signal density of a cable assembly. Therefore, care must be taken when choosing signal/ground ratios in cost or density-sensitive applications. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:14 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable For this cable assembly, the following array configurations are evaluated: Single-Ended Impedance: Long Row (upper terminals, furthest from test fixture) Short Row (bottom terminals, closest to test fixture) Single-Ended Crosstalk: In Row: Long Row (adjacent terminals in the long row) In Row: Short Row (adjacent terminals in the short row) Across Row: “Xrow”: (from one row of terminals to the other row) Differential Impedance: Long Row (upper terminals, furthest from test fixture) Short Row (bottom terminals, closest to test fixture) Differential Crosstalk: In Row: Long Row (adjacent terminals in the long row) In Row: Short Row (adjacent terminals in the short row) Across Row: “Xrow”: (from one row of terminals to the other row) See Appendix D – Product and Test System Descriptions for details Only one single-ended signal or differential pair was driven for crosstalk measurements. Other configurations can be evaluated upon request. Please contact [email protected] for more information. In a real system environment, active signals might be located at the outer edges of the signal contacts of concern, as opposed to the ground signals utilized in laboratory testing. For example, in a single-ended system, a pin-out of “SSSS”, or four adjacent single ended signals might be encountered as opposed to the “GSG” and “GSSG” configurations tested in the laboratory. Electrical characteristics in such applications could vary slightly from laboratory results. But in most applications, performance can safely be considered equivalent. Signal Edge Speed (Rise Time) In pulse signaling applications, the perceived performance of the interconnect can vary significantly depending on the edge rate or the rise time of the exciting signal. For this report, the fastest rise time used was 30 ps. Generally, this should demonstrate the worst-case performance. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:15 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable In many systems, the signal edge rate will be significantly slower at the cable assembly than at the driver launch point. To estimate interconnect performance at other edge rates, data is provided for several rise times between 30ps and 500ps. Unless otherwise stated, measured rise times were at 10%-90% signal levels. Eye Diagram Data Eye patterns are a time domain characterization of system level performance. Eye patterns are generated by sending continuous streams of data from a transmitter to a receiver, and overlaying the received signals upon one another. Over time, the received data builds to resemble an eye. Negative SI effects in the transmission path can cause the signal to distort, which over time, will cause the eye to “close”. Specifications, such as an eyemask template, can be placed on the amount of open area required in the eye to ensure a functional system. An eyemask template is a representation of the receiver’s sensitivity and is often used as a metric of performance. While there are lot-to-lot and vendor-to-vendor variations in receiver sensitivity, some general guidelines can be developed. After reviewing several major industry standards (PCIe, Gigabit Ethernet), we find similar eyemask requirements and we will use these as the basis for a generic template in this report. For this report, we will assume a receiver amplitude sensitivity of 50 mVpp and a jitter margin of 0.5 UI. This results in a diamond shape eyemask template that is 50 mV high and 0.5 UI wide. Please contact our Signal Integrity Group at [email protected] for more information. Frequency Domain Data Frequency Domain parameters are helpful in evaluating the cable assembly system’s signal loss and crosstalk characteristics across a range of sinusoidal frequencies. In this report, parameters presented in the Frequency Domain are Insertion Loss, Return Loss, Near-End and Far-End Crosstalk, and Mode Conversion. Other parameters or formats, such as VSWR or S-Parameters, may be available upon request. Please contact our Signal Integrity Group at [email protected] for more information. Frequency performance characteristics for the SUT are generated from network analyzer measurements. Time Domain Data Time Domain parameters indicate Impedance mismatch versus length and signal propagation time in a pulsed signal environment. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:16 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Impedance mismatch versus length is measured by DSA8200 Digital Serial Analyzer. Board related effects, such as pad-to-ground capacitance and trace loss, are included in the data presented in this report. The impedance data is provided in Appendix C of this report. The measured S-Parameters from the network analyzer are post-processed using Agilent ADS to obtain the time domain response for signal propagation time. The Time Domain procedure is provided in Appendix F of this report. Parameters or formats not included in this report may be available upon request. Please contact our Signal Integrity Group at [email protected] for more information. In this report, propagation delay is defined as the signal propagation time through the cable assembly, mating connectors, and connector footprint. Delay is measured at 30 picoseconds signal rise-time. Delay is calculated as the difference in time measured between the 50% amplitude levels of the input and output pulses. Data for other configurations may be available. Please contact our Signal Integrity Group at [email protected] for further information. Additional information concerning test conditions and procedures is located in the appendices of this report. Further information may be obtained by contacting our Signal Integrity Group at [email protected]. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:17 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix A – Eye Diagrams EQRD-026-09.80-TTR-STL-1 Single-Ended 9Gbps: Long Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:18 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended 8Gbps: Short Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:19 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential 13Gbps: Long Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:20 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential 12Gbps: Short Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:21 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-39.37-TTR-STL-1 Single-Ended 6Gbps: Long Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:22 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended 5Gbps: Short Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:23 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential 11Gbps: Long Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:24 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential 10Gbps: Short Row Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:25 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix B – Frequency Domain Response Graphs Single-Ended Application – Insertion Loss Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:26 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended Application – Return Loss Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:27 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended Application – NEXT Configurations Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:28 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:29 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended Application – FEXT Configurations Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:30 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:31 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Insertion Loss Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:32 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Return Loss Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:33 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – NEXT Configurations Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:34 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:35 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – FEXT Configurations Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:36 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:37 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Differential to Common Mode Conversion Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:38 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix C – Time Domain Response Graphs Single-Ended Application – Input Pulse Single-Ended Application – Cable Assembly Impedance Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Cable Assembly Test Board Test Board 0.25m: Single-Ended Application - Impedance WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:39 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable 1m: Single-Ended Application - Impedance Single-Ended Application – Cable assembly Impedance EQRD-026-09.80-TTR-STL-1 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:40 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-39.37-TTR-STL-1 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:41 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Single-Ended Application – Propagation Delay Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:42 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Input Pulse Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:43 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Cable Assembly Test Board Test Board Differential Application – Cable Assembly Impedance 0.25m: Differential Application - Impedance Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Cable Assembly Test Board Test Board 1m: Differential Application - Impedance WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:44 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Cable assembly Impedance EQRD-026-09.80-TTR-STL-1 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:45 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable EQRD-026-39.37-TTR-STL-1 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:46 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Differential Application – Propagation Delay Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:47 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix D – Product and Test System Descriptions Product Description Product test samples are 0.8 mm Q Rate® High Speed Coax Cable Assemblies. The part numbers are EQRD-026-09.80-TTR-STL-1 and EQRD-026-39.37-TTR-STL-1. They mate with QRF8-XXX-05.0-L-D-A and QRM8-XXX-05.0-L-D-A. A photo of the mated test article mounted to SI test boards is shown below. The cable assembly terminations had a particular signal line configuration. The respective signal line numbers are shown in Table 6 below. There are a total of 26 positions per row. Not all positions are shown. SMA jack numbers on the test boards correspond to the assembly line numbers. All adjacent lines are terminated where applicable. Table 6: Respective signal line numbers as viewed from End 1 Test System Description The test fixtures are composed of four-layer FR-4 material with 50Ω signal trace and pad configurations designed for the electrical characterization of Samtec high speed cable assembly products. A PCB mount SMA connector is used to interface the VNA test cables to the test fixtures. Optimization of the SMA launch was performed using full wave simulation tools to minimize reflections. Two test fixtures are specific to EQRD series cable assemblies and identified by part numbers PCB-102285-TST-11 and 12. The Auto Fixture Removal (AFR) calibration structures designed specifically for the EQRD series are located on PCB-102285-TST-99. Displayed on the following pages is the information for the EQRD and AFR calibration structure and directives for the mating EQRD fixtures. PCB-102285-TST-XX Test Fixtures Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:48 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Artwork of the PCB design is shown below. The trace is routed in layer 3 and 4. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:49 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable PCB Fixtures The test fixtures used are as follows: PCB-102285-TST-11 – EQRD Cable Test Board 1 PCB-102285-TST-12 – EQRD Cable Test Board 2 Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:50 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix E – Test and Measurement Setup For frequency domain measurements, the test instrument is the Agilent N5230C PNA-L network analyzer. Frequency domain data and graphs are extracted from the instrument by AFR application. Post-processed time domain data and graphs are generated using convolution algorithms within Agilent ADS. The network analyzer is configured as follows: Start Frequency – 300 KHz Stop Frequency – 20 GHz Number of points -1601 IFBW – 1 KHz With these settings, the measurement time is approximately 20 seconds. N5230C Measurement Setup Test Instruments QTY Description 1 Agilent N5230C PNA-L Network Analyzer (300 KHz to 20 GHz) 1 Agilent N4433A ECAL Module (300 KHz to 20 GHz) Test Cables & Adapters QTY Description 4 Gore OWD01D02039-4 (DC-26.5 GHz) Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:51 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable For impedance measurements, the test instrument is the Tektronix DSA8200 Digital Serial Analyzer mainframe and 80E04 sampling module. The impedance data and profiles are obtained directly from the instrument. The Digital Analyzer is configured as follows: Vertical Scale: Offset: Horizontal Scale: Record Length: Averages: 10 ohm / Div: Default / Scroll 600ps/ Div or 1.5ns/ Div 4000 ≥ 16 DSA8200 Measurement Setup Test Instruments QTY Description 1 Tektronix DSA8200 Digital Serial Analyzer 2 Tektronix 80E04 Dual Channel 20 GHz TDR Sampling Module Test Cables & Adapters QTY Description 2 Samtec RF405-01SP1-01SP1-0305 (DC-20 GHz) Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:52 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix F - Frequency and Time Domain Measurements Eye Diagram Procedures Eye Diagrams and statistical eye diagram metrics such as eye height can be generated by post-processing Frequency Domain measurements using Agilent ADS. Simulated data is sent over a touchstone model and the bits are overlain into an eye pattern. Currently, no CEI specification is available for 7Gbps, so CEI-28-VSR Working Clause Proposal, CEI Implementation agreement Draft 7.0, dated May 14, 2012 was used for this report. The simulation circuit is modeled as: Agilent’s Advanced Design System Tx and Rx modules that are configured to the CEI28-VSR Working Clause Proposal, CEI Implementation agreement Draft 7.0, dated May 14, 2012. Tx parameters are specified in Section 1.3.3, Module-to-Host Specifications, Table 1-4, Page 7. Rx parameters defined in Section 1.3.2 Host-to-Module Electrical Specifications, Table 1-1, Page 5. A 3.3 inch length of Tx interconnect trace segment at the transmitter. SUT Cable Assembly S-Parameter measurements o Test board vias, pads (footprint effects) for the QRF8 connector o The QRF8 series connector o The EQRD-026-XX.XX-TTR-STL-1 cable assembly o The QRM8 series connector o Test board vias, pads (footprint effects) for the QRM8 connector A 3.3 inch length of Rx interconnect trace segment at the receiver. All traces were modeled as microstrip on FR4 with the following parameters: The FR4 parameters are modeled using: o Er = 4.2 @ 1 GHz o Loss Tangent = 0.02 @ 1 GHz Copper is modeled as: o Conductivity = 4.5E+7 S-m o Surface roughness = 0.6 micron Traces are microstrip and stripline with the following geometry: o Trace width: 5.5 mil for stripline and 7.5 mil for microstrip o Trace copper thickness: 1.4 mil for stripline and 2.1 mil for microstrip Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:53 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable o FR4 dielectric thickness: 4.7 mil between layer 1 & 2 and between 5 & 6 4 mil between layer 2 & 3 and between 4 & 5 33.8 mil between layer 3 & 4 Eye Mask The eye mask is set for 50mVpp, with a jitter margin of 0.5 UI. Rise Time The 10-90 risetime of the 9Gbps signal was determined to be 78psec, using the following formula: Risetime = 0.35/Bandwidth Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:54 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Frequency (S-Parameter) Domain Procedures The quality of any data taken with a network analyzer is directly related to the quality of the calibration standards and the use of proper test procedures. For this reason, extreme care is taken in the design of the AFR calibration standards, the SI test boards and the selection of the PCB vendor. The measurement process begins with a measurement of the AFR calibration standards. A coaxial SOLT calibration is performed using an N4433A E-CAL module. This measurement is required in order to obtain precise values of the line standard offset delay and frequency bandwidths. Measurements of the 2x through line standard can be used to determine the maximum frequency for which the calibration standards are valid. For the EQRD test boards, this is greater than 20 GHz. The figure below shows how the THRU reference traces are utilized to compensate for the losses due to the coaxial test cables and the test fixture during testing. The calibration board is characterized to obtain parameters required to define the 2x Thru. 2x Thru calibration trace Reference plane Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:55 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Measurements are then performed using the test boards as shown below. The test board effects are removed in post-processing via AFR in Agilent PLTS. The calibrated reference plane is located at the middle of the connector footprint on each side. The SParameter measurements include: A. B. C. D. E. Test board vias, pads (footprint effects) for the QRF8 connector The QRF8 series connector The EQRD-026-XX.XX-TTR-STL-1 test cable The QRM8 series connector Test board vias, pads (footprint effects) for the QRM8 connector The figure below shows the location of the measurement reference plane. Test fixture 1 Test fixture 2 Reference plane Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 Reference plane WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:56 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Time Domain Procedures Mathematically, Frequency Domain data can be transformed to obtain a Time Domain response. Perfect transformation requires Frequency Domain data from DC to infinity Hz. Fortunately, a very accurate Time Domain response can be obtained with bandwidth-limited data, such as measured with modern network analyzer. The Time Domain responses were generated using Agilent ADS 2011 update 10. This tool has a transient convolution simulator, which can generate a Time Domain response directly from measured S-Parameters. An example of a similar methodology is provided in the Samtec Technical Note on domain transformation. http://www.samtec.com/Documents/WebFiles/Technical_Library/Reference/Articles/tech -note_using-PLTS-for-time-domain-data_web.pdf Propagation Delay (TDT) The Propagation Delay is a measure of the Time Domain delay through the cable assembly and footprint. A step pulse is applied to the touchstone model of the cable assembly and the transmitted voltage is monitored. The same pulse is also applied to a reference channel with zero loss, and the Time Domain pulses are plotted on the same graph. The difference in time, measured at the 50% point of the step voltage is the propagation delay. Impedance (TDR) Measurements involving digital pulses are performed using either Time Domain Reflectometer (TDR) or Time Domain Transmission (TDT) methods. The TDR method is used for the impedance measurements in this report. The signal line(s) of the SUT’s is energized with a TDR pulse and the far-end of the energized signal line is terminated in the test systems characteristic impedance (e.g.; 50Ω or 100Ω terminations). By terminating the adjacent signal lines in the test systems characteristic impedance, the effects on the resultant impedance shape of the waveform is limited. The “best case” signal mapping was tested and is presented in this report. Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:57 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved High Speed Characterization Report Series: EQRD Description: 0.8 mm Q Rate® High Speed Coax Cable Assembly, 34 AWG Micro Ribbon Coax Cable Appendix G – Glossary of Terms ADS – Agilent Advanced Design System AFR – Automatic Fixture Removal CTLE – Continuous Time Linear Analyzer CuFireFly™ - Copper FireFly™ assembly DUT – Device under test FD – Frequency domain FEXT – Far-End Crosstalk HDV – High Density Vertical NEXT – Near-End Crosstalk OV – Optimal Vertical OH – Optimal Horizontal PCB – Printed Circuit Board PLTS – Agilent Physical Layer Design System PPO – Pin Population Option SE – Single-Ended SI – Signal Integrity SUT – System Under Test S – Static (independent of PCB ground) SOLT – acronym used to define Short, Open, Load & Thru Calibration Standards TD – Time Domain TDA – Time Domain Analysis TDR – Time Domain Reflectometry TDT – Time Domain Transmission UI – Unit Interval XROW – Across Row Z – Impedance (expressed in ohms) Samtec Inc. 520 Park East Blvd. New Albany IN 47151-1147 USA ©Samtec, Inc. 2005 WWW.SAMTEC.COM 1-800-SAMTEC-9 (US & Canada) [email protected] Page:58 Phone: 812-944-6733 Fax: 812-948-5047 Report Revision: 6/25/2015 All Rights Reserved