Myoung Kyu Choi

US Patent:

20170295042, Oct 12, 2017

Filed:

Jun 22, 2017

Appl. No.:

15/630851

Inventors:

- Santa Clara CA, US
Friedel GERFERS - Sunnyvale CA, US
Carl POBANZ - Thousand Oaks CA, US
Myoung Joon CHOI - Santa Clara CA, US
Vivek GURUMOORTHY - San Jose CA, US
Chienhsin LEE - Pleasanton CA, US

International Classification:

H04L 25/03

Abstract:

A driver circuit device using driver equalization in power and ground terminated transmission line channels. The driver circuit device can include a weaker pull-up driver, which is needed to pre-emphasize the pull-up signal for driver equalization in power terminated transmission line channels. The driver circuit device can also include a weaker pull-down driver, which is needed to pre-emphasize the pull-down signal for driver equalization in ground terminated transmission line channels. In the transmission line channels with power terminations, a weaker pull-up Ron is implemented. In the transmission line channels with ground terminations, a weaker pull-down Ron is implemented. Drivers implemented in power and/or ground terminated transmission line channels can be used to improve device performance, such as in signal eye opening.