- Patent Title: Clock generator for adjusting jitter characteristics and operation power, semiconductor device including the clock generator, and operating method of the clock generator
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Application No.: US16724754Application Date: 2019-12-23
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Publication No.: US10921847B2Publication Date: 2021-02-16
- Inventor: Sangdon Jung , Jaehong Jung , Seunghyun Oh , Kyungmin Lee
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2019-0072420 20190618
- Main IPC: G06F1/08
- IPC: G06F1/08 ; H03L7/097 ; H03L7/08

Abstract:
The clock generator is provided and includes a phase detector, a voltage generator, a voltage-to-current converter, and an oscillation circuit. The voltage generator generates a control voltage. The voltage-to-current converter converts the control voltage into an internal current having a level based on a resistance value of a resistor circuit, the resistance value set based on first control information. The oscillation circuit generates a output clock having a frequency based on the level of the internal current and a capacitance value of a capacitor circuit, the capacitance value set based on second control information. The clock generator maintains a frequency value and varies jitter characteristics of the output clock in response to the first control information and the second control information.
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