公开(公告)号：US09054723B2

公开(公告)日：2015-06-09

申请号：US14274813

申请日：2014-05-12

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Takashi Oshima ,  Tatsuji Matsuura ,  Yuichi Okuda ,  Hideo Nakane ,  Takaya Yamamoto ,  Keisuke Kimura

IPC: H03M1/10 ,  H03M1/00 ,  H03M1/12 ,  H03M1/66

CPC classification number: H03M1/1033 ,  H03M1/002 ,  H03M1/1052 ,  H03M1/12 ,  H03M1/201 ,  H03M1/44 ,  H03M1/46 ,  H03M1/66 ,  H03M1/745

Abstract: To compensate for non-linearity of an AD conversion unit and non-linearity of a DA conversion unit in an electronic system including the DA conversion unit and the AD conversion unit, an electronic system includes an A/D conversion unit, a D/A conversion unit, an AD conversion compensation unit, a DA conversion compensation unit, and a calibration unit. During a calibration operation period, the calibration unit sets an operating characteristic of the AD conversion compensation unit and an operating characteristic of the DA conversion compensation unit. The operating characteristic of the AD conversion compensation unit set during the calibration operation period compensates for non-linearity of AD conversion of the A/D conversion unit. The operating characteristic of the DA conversion compensation unit set during the calibration operation period compensates for non-linearity of DA conversion of the D/A conversion unit.

Abstract translation: 为了补偿包括DA转换单元和AD转换单元的电子系统中的AD转换单元的非线性和DA转换单元的非线性，电子系统包括A / D转换单元，D / A 转换单元，AD转换补偿单元，DA转换补偿单元和校准单元。 在校准操作期间，校准单元设定AD转换补偿单元的工作特性和DA转换补偿单元的工作特性。 在校准操作期间设定的AD转换补偿单元的工作特性补偿A / D转换单元的AD转换的非线性。 在校准操作期间设置的DA转换补偿单元的工作特性补偿D / A转换单元的DA转换的非线性。