Invention Grant
- Patent Title: Method and apparatus for fast frequency acquisition in PLL system
- Patent Title (中): PLL系统中快速采集的方法和装置
-
Application No.: US14794770Application Date: 2015-07-08
-
Publication No.: US09362924B1Publication Date: 2016-06-07
- Inventor: Changxi Xu , Hui Li
- Applicant: Integrated Device Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
- Current Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
- Current Assignee Address: US CA San Jose
- Agency: Glass & Associates
- Agent Kenneth Glass
- Main IPC: H03L7/06
- IPC: H03L7/06 ; H03L7/085 ; G04F10/00 ; H03L7/099
Abstract:
A Method and Apparatus for Fast Frequency Acquisition in PLL System has been disclosed. In one implementation a time to digital converter is used with cycle slip detection for fast acquisition and lock. In one implementation cycle slip detection is applied to determine if a feedback clock from an oscillator is faster than a reference clock or not in one measurement cycle.
Information query
