USB3.0 spec.pdf

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1. Introduction

1.1 Scope

1.2 Objective

2. Acronyms and Terms

3. Significant Features

3.1.1 USB 3.0 Standard-A Connector

3.1.2 USB 3.0 Micro-B Connector

3.1.3 USB 3.0 Micro-AB and USB 3.0 Micro-A Connectors

4. Connector Mating Interfaces

4.2.1 Interface Definition

4.2.2 Pin Assignments and Description

4.2.3 USB 3.0 Standard-A Receptacle Color Code

4.3.1 Interface Definition

4.3.2 Pin Assignments and Description

4.3.3 Color Coding

5. Cable Construction and Wire Assignments

6. Cable Assemblies

6.1.1 Drawing

6.1.2 Wiring

6.2.1 Overmold Dimensions

6.2.2 Wiring

7. Electrical Requirements

7.1.1 Raw Cable

7.1.1.1 Characteristic Impedance

7.1.1.2 Intra-Pair Skew

7.1.1.3 Differential Attenuation

7.1.2 Mated Connector

7.1.3 Mated Cable Assemblies

7.1.3.1 Differential Return Loss (EIA-360-108)

7.1.3.2 Differential Insertion Loss (EIA-360-101)

7.1.3.3 Differential Near-End Crosstalk (EIA-360-90)

7.1.3.4 Differential to Common Mode Conversion

7.2.1 Low Level Contact Resistance (EIA 364-23B)

7.2.2 Dielectric Strength (EIA 364-20, Method 301)

7.2.3 Insulation Resistance (EIA 364-21, Method 302)

7.2.4 Contact Current Rating (EIA 364- 70, Method 2)

7.2.5 Electrostatic Discharge (IEC-801-2)

8. Mechanical and Environmental Requirements

8.1.1 Insertion Force (EIA 364-13)

8.1.2 Extraction Force (EIA 364-13)

8.1.3 Durability or Insertion/Extraction Cycles (EIA 364-09)

8.1.4 Cable Flexing (EIA 364-41, Condition I)

8.1.5 Cable Pull-Out (EIA 364-38, Condition A)

8.1.6 Latch Strength

8.1.7 Peel Strength (Reference Only)

8.1.8 Wrenching Strength (Reference Only)

8.1.9 Lead Co-Planarity

8.1.10 Solderability

8.1.11 RoHS Compliance

9. Implementation Notes and Design Guides

Universal Serial Bus 3.0 Connectors and Cable Assemblies Specification Revision 0.3 Draft 3 May 17th, 2007 For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision History Revision 0.3draft1 0.3draft2 0.3draft3 Issue Date May 6, 2007 May 10, 2007 May 17, 2007 Revision 0.3 Comment The first draft Included feedback to make terminologies consistent Updated all drawings and edited texts THIS DRAFT SPECIFICATION IS PROVIDED FOR REVIEW OLY. IT IS USED AS A BASIS FOR THE FURTHER DEVELOPMENT OF THE USB 3.0 CONNECTORS AND CABLE ASSEMBLIES SPECIFICATION. EVERYTHING CONTAINED IN THIS SPECIFICATION IS SUBJECT TO CHANGES BASED ON FURTHER ENGINEERING ANALYSIS AND EVALUATIONS. For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 2

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision 0.3 Contributors For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 3

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision 0.3 Table of Contents 1. Introduction................................................................................................................................................8 1.1 Scope .................................................................................................................................................8 1.2 Objective.............................................................................................................................................8 1.3 Related Documents............................................................................................................................8 2. Acronyms and Terms................................................................................................................................9 3. Significant Features ................................................................................................................................11 3.1 Connectors .......................................................................................................................................11 3.1.1 USB 3.0 Standard-A Connector .........................................................................................11 3.1.2 USB 3.0 Micro-B Connector ...............................................................................................11 3.1.3 USB 3.0 Micro-AB and USB 3.0 Micro-A Connectors........................................................12 3.2 Compliant Cable Assemblies ...........................................................................................................12 3.3 Raw Cables ......................................................................................................................................12 4. Connector Mating Interfaces..................................................................................................................13 4.1 Introduction.......................................................................................................................................13 4.2 USB 3.0 Standard-A Connector .......................................................................................................13 4.2.1 Interface Definition..............................................................................................................13 4.2.2 Pin Assignments and Description.......................................................................................20 4.2.3 USB 3.0 Standard-A Receptacle Color Code.....................................................................21 4.3 USB 3.0 Micro-B Connector.............................................................................................................21 4.3.1 Interface Definition..............................................................................................................21 4.3.2 Pin Assignments and Description.......................................................................................24 4.3.3 Color Coding.......................................................................................................................25 4.4 USB 3.0 Micro-AB Receptacle and USB 3.0 Micro-A Plug..............................................................25 5. Cable Construction and Wire Assignments .........................................................................................29 5.1 Cable Construction...........................................................................................................................29 5.2 Wire Assignments ............................................................................................................................29 5.3 Wire Gauges and Cable Diameters .................................................................................................30 6. Cable Assemblies....................................................................................................................................32 6.1 USB 3.0 Standard-A to USB 3.0 Micro-B Cable Assembly..............................................................32 6.1.1 Drawing...............................................................................................................................32 6.1.2 Wiring..................................................................................................................................32 6.2 USB 3.0 Micro-A to USB 3.0 Micro-B Cable Assembly ...................................................................33 6.2.1 Overmold Dimensions ........................................................................................................33 6.2.2 Wiring..................................................................................................................................34 6.3 Captive Cables .................................................................................................................................35 6.4 Color Coding.....................................................................................................................................37 6.5 USB 3.0 Icon Location......................................................................................................................37 6.6 Cable Assembly Length ...................................................................................................................39 7. Electrical Requirements..........................................................................................................................40 7.1 High Speed Electrical Requirements ...............................................................................................40 7.1.1 Raw Cable ..........................................................................................................................40 7.1.2 Mated Connector ................................................................................................................40 7.1.3 Mated Cable Assemblies....................................................................................................41 7.2 DC Electrical Requirements .............................................................................................................45 7.2.1 Low Level Contact Resistance (EIA 364-23B) ...................................................................45 For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 4

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision 0.3 7.2.2 Dielectric Strength (EIA 364-20, Method 301)....................................................................45 7.2.3 Insulation Resistance (EIA 364-21, Method 302)...............................................................45 7.2.4 Contact Current Rating (EIA 364- 70, Method 2) ...............................................................46 7.2.5 Electrostatic Discharge (IEC-801-2)...................................................................................46 8. Mechanical and Environmental Requirements.....................................................................................47 8.1 Mechanical Requirements................................................................................................................47 Insertion Force (EIA 364-13) ..............................................................................................47 8.1.1 8.1.2 Extraction Force (EIA 364-13) ............................................................................................47 8.1.3 Durability or Insertion/Extraction Cycles (EIA 364-09) .......................................................47 8.1.4 Cable Flexing (EIA 364-41, Condition I).............................................................................47 8.1.5 Cable Pull-Out (EIA 364-38, Condition A) ..........................................................................47 8.1.6 Latch Strength ....................................................................................................................47 8.1.7 Peel Strength (Reference Only) .........................................................................................47 8.1.8 Wrenching Strength (Reference Only) ...............................................................................48 8.1.9 Lead Co-Planarity ...............................................................................................................48 8.1.10 Solderability ........................................................................................................................48 8.1.11 RoHS Compliance ..............................................................................................................48 8.2 Environmental Requirements...........................................................................................................48 8.3 Materials ...........................................................................................................................................49 Implementation Notes and Design Guides ...........................................................................................50 9.1 Mated Connector Dimensions..........................................................................................................50 9.2 EMI Management .............................................................................................................................51 9.3 Stacked Connectors .........................................................................................................................51 9.4 Captive Cables .................................................................................................................................51 9.5 Adapters ...........................................................................................................................................52 9. Figures Figure 4-1 USB 3.0 Standard-A Receptacle Interface Dimensions................................................................16 Figure 4-2 USB 3.0 Standard-A Plug Interface Dimensions...........................................................................19 Figure 4-3 Reference Footprint for the USB 3.0 Standard-A Receptacle ......................................................20 Figure 4-4 USB 3.0 Micro-B Receptacle Interface Dimensions......................................................................22 Figure 4-5 USB 3.0 Micro-B Plug Interface Dimensions ................................................................................23 Figure 4-6 USB 3.0 Micro-AB receptacle Interface Dimensions.....................................................................26 Figure 4-7 USB 3.0 Micro-A Plug Interface Dimensions ................................................................................27 Figure 5-1 Illustration of a USB 3.0 Cable Cross-Section ..............................................................................29 Figure 6-1 USB 3.0 Standard-A to USB 3.0 Micro-B Cable Assembly...........................................................32 Figure 6-2 USB 3.0 Micro-A to USB 3.0 Micro-B Cable Assembly.................................................................34 Figure 6-3 Captive Cable Attached with the USB 3.0 Standard-A Plug (placeholder)...................................36 Figure 6-4 Captive Cable Attached with the USB 3.0 Micro-A Plug (placeholder).........................................37 Figure 6-5 USB 3.0 Logo (placeholder) ..........................................................................................................38 Figure 6-6 Typical Plug Orientation (placeholder) ...........................................................................................38 Figure 7-1 A TDR Example of a Mated Connector (placeholder)....................................................................41 Figure 7-2 Illustration of Test Points for a Mated Cable Assembly.................................................................41 Figure 7-3 Differential Return Loss Requirement ...........................................................................................42 Figure 7-4 Differential Insertion Loss Requirement ........................................................................................43 Figure 7-5 Differential Near-End Crosstalk Requirement...............................................................................44 Figure 7-6 Differential to Common Mode Conversion Requirement ..............................................................45 Figure 9-1 Mated USB 3.0 Standard-A connector (placeholder)....................................................................50 For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 5

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision 0.3 Figure 9-2 Mated USB 3.0 Micro-B connector................................................................................................50 Tables Table 3-1. Plugs Accepted By Receptacles....................................................................................................11 Table 4-1. USB 3.0 Standard-A Connector Pin Assignments ........................................................................20 Table 4-2. USB 3.0 Micro-B and -AB Connector Pin Assignments ................................................................24 Table 5-1. Cable Wire Assignments ...............................................................................................................30 Table 5-2. Reference Wire Gauges ................................................................................................................31 Table 6-1. USB 3.0 Standard-A to Super B Cable Assembly Wiring..............................................................33 Table 4-2. USB 3.0 Micro-A to USB 3.0 Micro-B Cable Assembly Wiring .....................................................35 Table 7-1. STP Differential Attenuation ..........................................................................................................40 Table 8-1. Environmental Test Conditions......................................................................................................48 Table 8-2. Reference Materials.......................................................................................................................49 For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 6

USB 3.0 Connectors and Cable Assemblies Specification May 17th, 2007 Revision 0.3 1. Introduction 1.1 Scope This document defines form, fit and function of the USB 3.0 connectors and cable assemblies. It contains the following contents: • Connector mating interfaces • Cables and cable assemblies • Electrical requirements • Mechanical and environmental requirements • Implementation notes and guidelines The intention of this document is to enable connector, system, and device designers and manufacturers to build, qualify and use the USB 3.0 connectors, cables, and cable assemblies. 1.2 Objective This specification is developed with the following objectives: • Supporting 5 Gbps data rate • Backward compatible with USB 2.0 • Minimizing connector form factor variations • Managing EMI • Supporting OTG • Low cost 1.3 Related Documents USB 2.0 Specification USB OTG Supplement Micro-USB Cables and Connectors Supplement to USB 2.0 Specification EIA-364-1000.01: Environmental Test Methodology for Assessing the Performance of Electrical Connectors and Sockets Used in Business Office Applications For Review and Discussion Only Draft Document Subject to Revision or Rejection USB 3.0 CabCon WG Confidential. Not For Publication or General Distribution 8

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