公开(公告)号：US20150263749A1

公开(公告)日：2015-09-17

申请号：US14656122

申请日：2015-03-12

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： STHANUNATHAN RAMAKRISHNAN ,  SREENATH NARAYANAN POTTY

IPC: H03M1/12 ,  H03M1/06

CPC classification number: H03M1/121 ,  H03M1/06 ,  H03M1/0626 ,  H03M1/0639 ,  H03M1/1205 ,  H03M1/1215

Abstract: A mismatch corrector can include a correction path comprising a plurality of parallel branches that each includes a correction filter that applies a respective one of a plurality of time domain filter coefficients that corresponds to a function of a mismatch profile of an interleaved analog-to-digital (IADC) signal on the IADC signal. The mismatch corrector can also include a delay path that delays the IADC signal by a predetermined number of samples to provide a delayed version of the IADC signal. The mismatch corrector can further include a summer to subtract an output of each correction filter from the delayed version of the IADC signal to generate a corrected IADC signal.

Abstract translation: 不匹配校正器可以包括校正路径，其包括多个并行分支，每个分支包括校正滤波器，校正滤波器应用与交织的模数转换器的失配曲线的函数相对应的多个时域滤波器系数中的相应一个 （IADC）信号。 不匹配校正器还可以包括将IADC信号延迟预定数量的采样以提供IADC信号的延迟版本的延迟路径。 不匹配校正器还可以包括加法器，以从IADC信号的延迟版本中减去每个校正滤波器的输出，以产生校正的IADC信号。