DELTA SIGMA MODULATOR AND MODULATION METHOD THEREOF
    1.
    发明公开
    DELTA SIGMA MODULATOR AND MODULATION METHOD THEREOF 审中-公开
    DELTA SIGMA调制器及其调制方法

    公开(公告)号:EP2983296A1

    公开(公告)日:2016-02-10

    申请号:EP14795481.2

    申请日:2014-04-03

    申请人: ZTE Corporation

    IPC分类号: H03M3/00

    CPC分类号: H03M7/3033

    摘要: A delta sigma modulator (DSM) and a method for the DSM performing modulation, wherein, the method includes: pre-processing inputted data; predicting a DSM modulation result according to the current data; finally, performing a DSM modulation on the current data according to the pre-processed data and the prediction result. An embodiment of the present invention pre-processes the inputted data and predicts a DSM modulation result so as to realize a multistage pipeline register structure in DSM, thus improving timing sequences of key sections such as adders without affecting characteristics of an original transfer function, thereby increasing sampling frequency of circuit operations and improving SNR performance.

    摘要翻译: 一种Δ-Σ调制器(DSM)和一种用于DSM执行调制的方法,其中,所述方法包括:预处理输入的数据; 根据当前数据预测DSM调制结果; 最后根据预处理数据和预测结果对当前数据进行DSM调制。 本发明实施例对输入数据进行预处理并预测DSM调制结果,以实现DSM中的多级流水线寄存器结构,从而在不影响原始传输函数的特性的情况下,改善了加法器等关键部分的时序, 增加电路操作的采样频率并提高SNR性能。