Invention Grant
- Patent Title: Digitally controlled oscillator
- Patent Title (中): 数字控制振荡器
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Application No.: US12570144Application Date: 2009-09-30
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Publication No.: US08040196B2Publication Date: 2011-10-18
- Inventor: Jong-shin Shin
- Applicant: Jong-shin Shin
- Applicant Address: KR Suwon-si, Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si, Gyeonggi-do
- Agency: Volentine & Whitt, PLLC
- Priority: KR10-2008-0099348 20081009
- Main IPC: H03K3/03
- IPC: H03K3/03
Abstract:
A digitally controlled oscillator includes a ring oscillator, a parallel resistor bank connected to a first terminal of the ring oscillator and having a resistance that varies according to a digital code, and a serial resistor bank connected to a second terminal of the ring oscillator and having a resistance that varies according to the digital code. A frequency of the ring oscillator linearly varies with a variation in the resistance of the parallel resistor bank and the resistance of the serial resistor bank according to the digital code.
Public/Granted literature
- US20100090771A1 DIGITALLY CONTROLLED OSCILLATOR Public/Granted day:2010-04-15
Information query
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