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October 10, 20001. 2 USB 2.0 Cable and Connector Testing George G. Olear II Contech Research, Inc. Sheldon Singleton National Technical Systems Andrew.

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Presentation on theme: "October 10, 20001. 2 USB 2.0 Cable and Connector Testing George G. Olear II Contech Research, Inc. Sheldon Singleton National Technical Systems Andrew."— Presentation transcript:

1 October 10, 20001

2 2 USB 2.0 Cable and Connector Testing George G. Olear II Contech Research, Inc. Sheldon Singleton National Technical Systems Andrew Y. Lin Electronics Testing Center, Taiwan

3 October 10, Agenda w Cable and connector testing for logo w Mini-B connector testing for design validation

4 October 10, Cable and Connector Testing w Cable and Connector Testing - Why ? – Communications Loss – Interop Problems w Orlando CCDWG – Test Laboratory Selection – Specification Review – Product Delisting – Group 6 Testing as a Starter – Provisional Listing

5 October 10, Cable and Connector Testing w Benefits of Compliance Testing – The use of listed cables and connectors is required for devices to get on the Integrators List – You must be listed in order to use the new logo which indicates that the cable is high speed capable.

6 October 10, Cable and Connector Testing

7 October 10, Cable and Connector Testing w Successes and Failures – Vibration and Shock – Attenuation – Cable Impedance – Shielding Effectiveness

8 October 10, Cable and Connector Testing w Integrators List – Listed on Integrators List u u Advanced Connectek USA u u AMP/Tycoelectronics u u Cheng Uei Precision Industry Co., Ltd u u Copartner Wire and Cable Mfg. Corp. u u FCI Electronics u u I/O Systems Inc. formerly Elite Electronics, Inc. u u Lumberg, Inc. u u Total Technologies, Ltd u JST – Presently in the Lab u Molex u Fujikura America u Northstar u Longwell u Foxcon u ACON u I/O u Interconnect

9 October 10, Mini-B connector design validation w The Mini- B Cable and Connector minimum qualification test program. w The program consisted of 4 manufacturers who agreed u 1st - The Design u 2nd - Submission of their first products for independent testing. w And the players are: – ACON Marunix Mitsumi Molex

10 October 10, w Minimum Qualification Testing Program – Group 1 Testing u Durability u Vibration and Shock – Group 3 Testing u Mixed Flowing Gas – Group 6 Testing u Attenuation u Impedance u Propagation Delay/ Delay Skew u Shielding Effectiveness Mini-B connector design validation

11 October 10, Group 1 tests w Durability – Mating/Unmating Forces – Contact Resistance (LLCR) w Vibration and Mechanical Shock – Contact Chatter – Contact Resistance (LLCR) w Cable Pullout – Continuity

12 October 10, Cable and Connector Testing Group 1 Test Results w Low Level Circuit Resistance (milliohms)

13 October 10, Cable and Connector Testing Group 1 Test Results w Unmating Forces after durability testing

14 October 10, Group 3 tests w Mixed Flowing Gas – Plating Integrity - Contacts u Contact Resistance – Plating Integrity - Shell u Contact Resistance of the Shell – Contact life u 2 days exposure = 1 year field life

15 October 10, Cable and Connector Testing Group 3 Test Results w Low Level Circuit Resistance during MFG test

16 October 10, Group 6 tests w Impedance Mechanisms that effect Impedance are: Mechanisms that effect Impedance are: Incorrect cable impedance, Improper cable/connector terminations, Defective connector contact plating, Incorrect connector interface dimensions w Attenuation Mechanisms that affect attenuation are: Cable Construction, Cable Length, Cable Capacitance, Inductance, Skin Effect and Frequency Range w Propagation Delay Mechanisms that affect Propagation Delay are: Mechanisms that affect Propagation Delay are: Cable Construction, Cable Length, Impedance and Termination, and Measurement System Rise Time

17 October 10, Group 6 tests w Propagation Delay Skew Testing – Mechanisms that effect Propagation Delay Skew Testing are: – Cable Construction, Cable Length, Impedance and Termination, Measurement System Rise Time, and Connector/Cable Assembly Techniques w Shielding Effectiveness – Mechanisms that affect attenuation are: – Cable Braid Construction, Connector/Cable Assembly Construction

18 October 10, Cable and Connector Testing Group 6 Test Results w Impedance 1 Meter Cable Assembly Requirement (76.5 to 103.5) Sample ID A Group B Group C Group D Group Average Average

19 October 10, Cable and Connector Testing Group 6 Test Results w Attenuation – 1 Meter Cable Assembly A Group B Group C Group D Group Freq./Req. (MHz/dB)AverageAverageAverageAverage 0.064/ / / / / / / / / / / / /

20 October 10, Cable and Connector Testing Group 6 Test Results w Propagation Delay – 1 Meter Cable Assembly Requirement (5.2 ns max) Sample ID A GroupB Group C Group D Group Average

21 October 10, Cable and Connector Testing Group 6 Test Results w Propagation Delay Skew – 1 Meter Cable Assembly Requirement (100 ps max) Sample ID Group AGroup BGroup CGroup D Average

22 October 10, USB Cable and Connector Shielding Effectiveness Testing w The purpose of this test is to determine how effective the connector/cable assembly shielding is in preventing an RF signal from leaking out. w Mechanisms that affect Shielding Effectiveness are: – Cable Braid Construction – Connector/Cable Assembly Construction

23 October 10, Cable and Connector Testing Group 6 Test Results w Shielding Effectiveness

24 October 10, Cable and Connector Testing w Where Are We Going From Here? – Cable and Connector Certification – Completion of the Mini-B Testing – Mini-B Connector ECN – Cable and Connector Class Document 1.0

25 October 10, Why USB? w Ubiquitous…Now w Cheap w Reliable w Good performance w Gates are cheap, easy to add light host controller w Wireless may play stronger role in future


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