Invention Application
- Patent Title: OFFSET CALIBRATION FOR LOW POWER AND HIGH PERFORMANCE RECEIVER
- Patent Title (中): 低功率和高性能接收器的偏移校准
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Application No.: PCT/US2015/030209Application Date: 2015-05-11
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Publication No.: WO2015187307A1Publication Date: 2015-12-10
- Inventor: CHEN, Minhan , ARCUDIA, Kenneth Luis
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Agency: MATTHEW, Benjamin B. et al.
- Priority: US14/298,718 20140606
- Main IPC: H04L25/02
- IPC: H04L25/02 ; H04L25/06 ; H04L25/03
Abstract:
Systems and methods for providing offset calibration for low power and high performance receivers are described herein. In one embodiment, a method for offset calibration comprises inputting a first voltage to a first input of a sample latch, and inputting a second voltage and an offset-cancelation voltage to a second input of the sample latch. The method also comprises adjusting the offset-cancelation voltage, observing an output of the sample latch as the offset-cancelation voltage is adjusted, and recording a value of the offset-cancelation voltage at which a metastable state (toggles between one and zero) is observed at the output of the sample latch. The method may be performed for each one of a plurality of different voltage levels for the first voltage to determine an offset-cancelation voltage for each one of the voltage levels.
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