Invention Grant
US07902929B2 Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop
有权
用于低噪声，快速和宽锁定范围锁相环的模拟自校准方法和装置
- Patent Title: Analogue self-calibration method and apparatus for low noise, fast and wide-locking range phase locked loop
- Patent Title (中): 用于低噪声，快速和宽锁定范围锁相环的模拟自校准方法和装置
-
Application No.: US12355948Application Date: 2009-01-19
-
Publication No.: US07902929B2Publication Date: 2011-03-08
- Inventor: Adil Koukab , Michel Declercq
- Applicant: Adil Koukab , Michel Declercq
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Priority: EP04100600 20040213
- Main IPC: H03L7/093
- IPC: H03L7/093
Abstract:
A method of operating a phase lock loop includes generating a control voltage based on both an output signal of a voltage-controlled oscillator and a reference signal. An operating mode is selected from one of a high-gain mode, a zero-gain mode and a low-gain mode based on the control voltage. The phase lock loop is operated in the selected one of the high-gain mode, the zero-gain mode, and the low-gain mode. The control voltage is offset to generate an offset voltage based on the selected operating mode. The output signal is generated based on the offset voltage.
Public/Granted literature
Information query
IPC分类:
