Invention Grant
- Patent Title: DC offset calibration in a direct conversion receiver
- Patent Title (中): 直流偏移校准在直接转换接收机
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Application No.: US13096635Application Date: 2011-04-28
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Publication No.: US08150360B2Publication Date: 2012-04-03
- Inventor: Jorge Ivonnet , Chuanzhao Yu
- Applicant: Jorge Ivonnet , Chuanzhao Yu
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Main IPC: H04B1/26
- IPC: H04B1/26

Abstract:
A direct conversion receiver (200) includes a low noise amplifier (LNA) (213), at least one baseband amplifier (119, 123 and 127), register banks (250 and 251) for storing a plurality of offset data corresponding to at least two LNA gain settings and a plurality of baseband gain settings, a DC offset correction system (235) for providing a DC offset signal, a state machine (275) for sequencing through each of the plurality of baseband gain settings and through enable and disable states for the LNA, and a processor (290) programmed to activate the state machine and to run the DC offset correction system.
Public/Granted literature
- US20110201284A1 DC OFFSET CALIBRATION IN A DIRECT CONVERSION RECEIVER Public/Granted day:2011-08-18
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