发明授权
- 专利标题： Phase locked loop (PLL) based frequency sweep generator
- 专利标题（中）： 基于锁相环（PLL）的频率扫描发生器
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申请号： US13229449申请日： 2011-09-09
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公开(公告)号： US08638139B2公开(公告)日： 2014-01-28
- 发明人: Michael Keaveney , Patrick Walsh
- 申请人： Michael Keaveney , Patrick Walsh
- 申请人地址： US MA Norwood
- 专利权人： Analog Devices, Inc.
- 当前专利权人： Analog Devices, Inc.
- 当前专利权人地址： US MA Norwood
- 代理机构： Knobbe Martens Olson & Bear LLP
- 主分类号： H03L7/06
- IPC分类号： H03L7/06
摘要：
A phase locked loop (PLL) based frequency sweep generator and methods for performing a frequency sweep are disclosed. In one implementation, the frequency sweep generator includes a circuit configured to generate a signal having a saw-tooth wave frequency ramp. The saw-tooth wave frequency ramp includes a rising portion and a resetting portion. The resetting portion has a shorter duration than the rising portion and includes a plurality of steps for decrementing the frequency of the signal.
公开/授权文献
- US20120062297A1 PHASE LOCKED LOOP (PLL) BASED FREQUENCY SWEEP GENERATOR 公开/授权日：2012-03-15
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