发明授权
US09042499B2 Radio frequency (RF) receivers with whitened digital clocks and related methods
有权
具有白化数字时钟和相关方法的射频(RF)接收机
- 专利标题: Radio frequency (RF) receivers with whitened digital clocks and related methods
- 专利标题(中): 具有白化数字时钟和相关方法的射频(RF)接收机
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申请号: US14062958申请日: 2013-10-25
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公开(公告)号: US09042499B2公开(公告)日: 2015-05-26
- 发明人: Michael R. May , Scott T. Haban
- 申请人: Silicon Laboratories Inc.
- 申请人地址: US TX Austin
- 专利权人: Silicon Laboratories Inc.
- 当前专利权人: Silicon Laboratories Inc.
- 当前专利权人地址: US TX Austin
- 代理机构: Egan, Peterman & Enders LLP.
- 主分类号: H03D1/04
- IPC分类号: H03D1/04 ; H03D1/06 ; H03K5/01 ; H03K6/04 ; H04B1/10 ; H04L1/00 ; H04L25/08 ; H04B1/12
摘要:
Radio frequency (RF) receivers having whitened digital clocks and related methods are disclosed. Disclosed embodiments generate whitened clocks having random variations that are used to operate digital processing blocks so that interference created by the whitened clocks is seen as white noise within the received RF signal spectrum. RF input signals are received by RF front-ends (RFFEs) that output analog signals associated with channels within the RF input signals. These analog signals are converted to digital information and processed by digital receive path circuitry that outputs digital data associated with the channel. The digital receive path circuitry includes a whitened clock generator that generates a whitened clock having random variations and which a digital processing block that operates based upon the whitened clock. Further, the RFFE and the digital receive path circuitry are located within a single integrated circuit.
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