Jason Tf Leung

US Patent:

20200089643, Mar 19, 2020

Filed:

Sep 18, 2018

Appl. No.:

16/134811

Inventors:

- Cupertino CA, US
Gary S. Thomason - Boulder Creek CA, US
Abhilash Rajagopal - San Jose CA, US
Jason W. Leung - San Francisco CA, US
Koussalya Balasubramanian - Santa Clara CA, US
Venus Kumar - Pleasanton CA, US

International Classification:

G06F 13/40
H01R 13/646
H04L 25/02

Abstract:

A data network may include a data bus and network nodes. The data bus may be a differential data bus having first and second differential signal lines that convey differential signals between the nodes. A bimodal impedance terminator may be coupled to the first and second differential signal lines at one or both ends of the data bus. The bimodal impedance terminator may include a first resistor coupled between the first differential signal line and a circuit node and a second resistor coupled between the second differential signal line and the circuit node. A capacitor may be coupled between the circuit node and ground. A third resistor may be coupled between the circuit node and ground in series with the capacitor. The bimodal impedance terminator may terminate both the differential-mode impedance and the common-mode impedance of the data bus to reduce signal reflections at the ends of the data bus.