发明申请
- 专利标题： Circuitry And Methods For Common-Mode Rejection Calibration
- 专利标题（中）： 共模抑制校准的电路和方法
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申请号： US14166370申请日： 2014-01-28
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公开(公告)号： US20150214911A1公开(公告)日： 2015-07-30
- 发明人: Michael S. Johnson , Russell Croman
- 申请人： Silicon Laboratories Inc.
- 主分类号： H03F3/45
- IPC分类号： H03F3/45 ; H03F1/56
摘要：
Circuitry and methods are disclosed that may employ common mode calibration circuitry configured to at least partially calibrate out impedance differences or mismatches between the differential signal paths of differential signal circuitry. The common mode calibration circuitry may be integrated as an internal part of integrated differential signal circuitry that includes a differential amplifier to reject common mode noise, and may be used to reduce or substantially eliminate any external and/or internal difference in signal path resistance that exists between the differential signal paths of the integrated differential signal circuitry. A common mode calibration signal may be internally or externally applied to the signal inputs of differential signal circuitry, and used to determine a setting for the common mode calibration circuitry that at least partially calibrates out impedance differences or mismatches between the differential signal paths of differential signal circuitry.
公开/授权文献
- US09379676B2 Circuitry and methods for common-mode rejection calibration 公开/授权日：2016-06-28
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