Configuration Guides
1. Revision History
Revision |
Comments |
Date |
1.0 |
First draft for E5080B series |
30-Nov-2020 |
1.1 |
Updated new release of USB-IF compliance tool |
12-Jan-2021 |
2. Configuration Requirements
Description |
Test Equipment |
Qty |
Network Analyzer |
Keysight Network Analyzer: (20 GHz is recommended as USB4/Type-C cable/connector requires measurements up to 20 GHz)
• E5080B-4K0: 4-port test set, 9 kHz to 20 GHz or • P5024/25A Streamline USB Series VNA or • M9804/05A PXI Multiport VNA Note: Ensure that E5080B firmware revision is at least version A.14.10 or above (Windows 10) |
1 ea. |
Software |
S9x011A/B Enhanced time-domain analysis with TDR * Selection is based on the VNA platforms. x=6 for ENA, x=7 for Streamline USB, x=5 for PXI |
1 ea. |
Compliance Tool |
Compliance Tool provided by USB-IF: https://compliance.usb.org/files/IntePar_1p6.zip (Released 3-Jan-2021) |
1 ea. |
ECal or Mechanical Cal Kit |
N4433D-010/0DC 4-Ports Electronic Calibration (ECal) Module or 85052D Economy Mechanical Calibration Kit |
1 ea. |
Test Fixture |
USB Type-C official test fixture and calibration standards, or an equivalent set of fixtures and standards. Note: Fixtures for testing USB Type-C and USB Legacy connectors and cable assemblies are available for purchase through LUXSHARE-ICT.
|
1 ea. |
Adapter (for E5080B only) |
Coaxial straight Female-SMA Female-SMA 50-Ohm adapters (Keysight 1250-1666). |
4 ea. |
RF cable |
3.5 mm or SMA cables of 4 GHz bandwidth or more (EG: 5062-6691) * Y1740A-100 (3.5-mm m-m, 36 inch) cable is recommended for USB and PXI VNA. |
4 ea. |
Terminator |
50-ohm terminations to terminate unused channels. |
14 ea. |
3. Test Procedure
3.1 Test flow chart
Steps |
Procedure |
Step 1 |
The VNA should be powered on and allowed to warm up - recommendation is for 24 hours prior to measurement. - Recommended to set the frequency sweep range 20 GHz for the USB Type-C SuperSpeed pairs as required by the spec. - The IF Bandwidth should be low enough to help reduce noise effects (e.g. < 300 Hz). |
Step 2 |
Set measurement conditions by recalling a state file or manual setup. There are 3 type of USB Type-C Cable-Connector tests state files and MOIs. Choose the right one base on your DUT type. - Type-C to Type-C Passive Cable Assemblies (for High Speed Signal and Low Speed Signals) - Type-C to Legacy USB Cable Assemblies - Type-C to Legacy USB Adapter Assemblies |
Step 3 |
Connect USB Type-C Test fixture to test ports of the VNA. |
Step 4 |
For Time Domain Measurements, perform Electronic Calibration (ECal) and deembedding. |
Step 5 |
For Frequency Domain Measurements, perform Electronic Calibration (ECal) and deembedding. |
Step 6 |
Perform Time Domain Measurements - D+/D- Differential Impedance (Normative) - D+/D- Intra-Pair Skew (Normative) - [Raw Cable] Characteristic Impedance (Informative) - [Raw Cable] Intra-Pair Skew (Informative) - [Mated Connector] Differential Impedance (Informative) |
Step 7 |
Perform Frequency Domain Measurements - D+/D- Pair Attenuation (Normative) - Channel Metrics (ILfitatNq, IMR, IXT, IRL) (Normative) - Differential-to-Common Mode conversion) (Normative) - Cable Shielding Effectiveness (Normative) - [Raw Cable] Differential Insertion Loss (Informative) - [Mated Connector] Differential Insertion Loss (Informative) - [Mated Connector] Differential Return Loss (Informative) - [Mated Connector] Differential NEXT & FEXT between SS Signal Pairs (Informative) - [Mated Connector] Differential NEXT & FEXT between D+/D- Pair and SS Signal Pairs (Informative) - [Mated Connector] Differential to Common Mode Conversion (Informative) - Differential Insertion Loss (Informative) - Differential Return Loss (Informative) - Differential NEXT between SS Signal Pairs (Informative) - Differential NEXT & FEXT between D+/D- Pair and SS Signal Pairs (Informative) |
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