Two Novel Skew Compensation Techniques for Reducing Mode Conversion

Event Time

Originally Aired - Wednesday, August 18 8:00 AM - 8:40 AM

Info Alert

Create or Log in to My Show Planner to see Videos and Resources.

Videos

Resources


{{video.title}}

Log in to your planner to join the zoom meeting!

{{chatHeaderContent}}

{{chatBodyContent}}

Resources

Info Alert

This Session Has Not Started Yet

Be sure to come back after the session starts to have access to session resources.

Event Location

Location: Meeting Room 212AB


Event Information

Title: Two Novel Skew Compensation Techniques for Reducing Mode Conversion

Event Type: DesignCon - Technical Session

Pass Type: All-Access Pass, 2-Day Pass

Theme: High-speed Communications


Description

Two techniques for intra-pair length matching of differential routing are proposed: Asymmetrical Dual Bend(ADB) and Hybrid U-Turn(HUT), in order to reduce the differential mode to common mode conversion in system. These layout techniques help in achieving lower EMI without impacting SI performance and with insignificant effect on PCB cost.

1. Four types of Asymmetric Dual Bend(ADB) designs are evaluated in this presentation by simulating the EMI and SI performance. The results illustrate that the asymmetric dual bend scheme can provide 10+ dB improvement for Scd21 in stripline layout and nearly 5dB improvement for microstrip layout, while no impact on SddSeveral PCB coupons were also made, and the results match quite well between simulation and measurement. 

2. Hybrid U-Turn(HUT) is proposed in this presentation for intra-pair length matching as well as inter-pair skew simultaneously by introducing two different kinds of corners. The simulation results show nearly 10dB improvement in Scd21 and PCB coupon measurement also verify the performance.


Speakers


Tracks