公开(公告)号：US08872682B2

公开(公告)日：2014-10-28

申请号：US13926455

申请日：2013-06-25

Applicant: STMicroelectronics S.r.l

Inventor： Vanni Poletto ,  Carlo Antonini ,  Salvatore Cannavacciuolo

IPC: H03M1/00 ,  H03M1/12 ,  H03M3/04 ,  H03M1/48

CPC classification number: H03M1/12 ,  H03M1/1235 ,  H03M1/48 ,  H03M3/04

Abstract: An analog-to-digital conversion loop adapted to generate a digital output signal corresponding to a low-pass filtered replica of an analog input signal, including an analog adder configured to receive the input analog signal and an analog feedback signal, adapted to generate an analog error signal corresponding to the difference between the analog input signal and the analog feedback signal; an analog-to-digital converter having a nonlinear input-output conversion characteristic defining a larger quantization step the more the input to be converted differs from a null value, configured to receive the analog error signal and to generate a corresponding digital error signal a digital integrator configured to receive the digital error signal, configured to generate the digital output signal corresponding to the time integration of the digital error signal; a digital-to-analog converter, configured to receive the digital output signal and to generate the analog feedback signal as analog replica of the digital output signal.

Abstract translation: 一种适于产生对应于模拟输入信号的低通滤波复制品的数字输出信号的模拟 - 数字转换回路，包括配置成接收输入模拟信号的模拟加法器和模拟反馈信号，该模拟加法器适于产生 模拟误差信号对应于模拟输入信号和模拟反馈信号之间的差异; 具有定义较大量化步长的非线性输入 - 输出转换特性的模数转换器，被转换的输入越多与空值不同，被配置为接收模拟误差信号并产生相应的数字误差信号，数字 积分器，被配置为接收数字误差信号，被配置为产生对应于数字误差信号的时间积分的数字输出信号; 数模转换器，配置成接收数字输出信号并产生模拟反馈信号作为数字输出信号的模拟副本。

公开(公告)号：US20130342376A1

公开(公告)日：2013-12-26

申请号：US13926455

申请日：2013-06-25

Applicant: STMicroelectronics S.r.l.

Inventor： Vanni Poletto ,  Carlo Antonini ,  Salvatore Cannavacciuolo

IPC: H03M1/12

CPC classification number: H03M1/12 ,  H03M1/1235 ,  H03M1/48 ,  H03M3/04

Abstract: An analog-to-digital conversion loop adapted to generate a digital output signal corresponding to a low-pass filtered replica of an analog input signal, including an analog adder configured to receive the input analog signal and an analog feedback signal, adapted to generate an analog error signal corresponding to the difference between the analog input signal and the analog feedback signal; an analog-to-digital converter having a nonlinear input-output conversion characteristic defining a larger quantization step the more the input to be converted differs from a null value, configured to receive the analog error signal and to generate a corresponding digital error signal a digital integrator configured to receive the digital error signal, configured to generate the digital output signal corresponding to the time integration of the digital error signal; a digital-to-analog converter, configured to receive the digital output signal and to generate the analog feedback signal as analog replica of the digital output signal.

Abstract translation: 一种适于产生对应于模拟输入信号的低通滤波复制品的数字输出信号的模拟 - 数字转换回路，包括配置成接收输入模拟信号的模拟加法器和模拟反馈信号，该模拟加法器适于产生 模拟误差信号对应于模拟输入信号和模拟反馈信号之间的差异; 具有定义较大量化步长的非线性输入 - 输出转换特性的模数转换器，被转换的输入越多与空值不同，被配置为接收模拟误差信号并产生相应的数字误差信号，数字 积分器，被配置为接收数字误差信号，被配置为产生对应于数字误差信号的时间积分的数字输出信号; 数模转换器，配置成接收数字输出信号并产生模拟反馈信号作为数字输出信号的模拟副本。