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公开(公告)号:US20230163740A1
公开(公告)日:2023-05-25
申请号:US17531811
申请日:2021-11-22
CPC分类号: H03G3/3084 , H03F3/45 , H03M1/12 , H04B10/6933 , H03F2200/375 , H03F2203/45212
摘要: A method for removing offset in a receiver of an integrated circuit (IC) includes: determining digital codes of differential input voltages of an amplifier in a first receiving lane of the receiver; comparing the digital codes to a digital code corresponding to an optimum common mode voltage (VCM) of the receiver; according to the comparison, determining a bias code for adjusting both the differential input voltages to match the optimum VCM; and inputting the bias code to a bias circuit of the receiver. The first receiving lane of the receiver includes a plurality of amplifiers. The method steps are repeated for each amplifier of the plurality of amplifiers, and then repeated for all receiving lanes of the IC.