Hynix Semiconductor Inc.

Jong-Ho Kang

Kyung-Hoon Kim

Dae-Han Kwon

Yong-Ki Kim

Sang-Yeon Byeon

A clock data recovery (CDR) circuit occupies a small area required in a high-integration semiconductor device, electronic device and system and is easy in design modification. The CDR circuit includes a digital filter configured to filter phase comparison result signals received during predetermined periods and output control signals, a driver configured to control the digital filter by adjusting the predetermined periods, and an input/output circuit configured to recognize an input and output of data and clock in response to the control signals.

Clock data recovery circuit and method for operating the same

A clock generation circuit for a semiconductor memory apparatus includes an internal clock generation unit that receives a clock and generates an internal clock, and a clock selection unit that selectively outputs the clock or the internal clock in response to a selection signal.

Growing community of inventors

Kyoungki-do, South Korea

Jong-Ho Kang