Invention Grant
US09008253B2 Control method for selecting frequency band and related clock data recovery device
有权
选择频带和相关时钟数据恢复装置的控制方法
- Patent Title: Control method for selecting frequency band and related clock data recovery device
- Patent Title (中): 选择频带和相关时钟数据恢复装置的控制方法
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Application No.: US13775119Application Date: 2013-02-23
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Publication No.: US09008253B2Publication Date: 2015-04-14
- Inventor: Tzu-Chien Tzeng , Hung-Yi Cheng
- Applicant: NOVATEK Microelectronics Corp.
- Applicant Address: TW Hsinchu Science Park, Hsin-Chu
- Assignee: NOVATEK Microelectronics Corp.
- Current Assignee: NOVATEK Microelectronics Corp.
- Current Assignee Address: TW Hsinchu Science Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW102100434A 20130107
- Main IPC: H03D3/24
- IPC: H03D3/24 ; H04L7/033 ; H03L7/08 ; H03L7/10 ; H03L7/107

Abstract:
A control method utilized in a clock data recovery device supporting a plurality of frequency bands, for controlling the clock data recovery device to select an operating frequency band from the plurality of frequency bands and to generate a recovery clock for generating retimed data, includes receiving a serial data stream with a data frequency; making each frequency band of the plurality of frequency bands correspond to a plurality of frequency band groups, wherein each frequency band group includes at least one frequency band and corresponds to different frequency ranges; selecting a frequency band group from the plurality of frequency band groups as a coarse-tuned frequency band group according to the data frequency and a locking voltage range; and selecting a frequency band from the plurality of frequency bands according to the data frequency, the locking voltage range and the coarse-tuned frequency band group for generating the recovery clock.
Public/Granted literature
- US20140112425A1 CONTROL METHOD FOR SELECTING FREQUENCY BAND AND RELATED CLOCK DATA RECOVERY DEVICE Public/Granted day:2014-04-24
Information query
IPC分类: