发明名称 |
DELTA-SIGMA MODULATOR |
摘要 |
Provided is a delta-sigma modulator including a summer summing an input signal and an analog signal, a first integrator integrating an output signal from the summer and outputting a first integration signal, a second integrator integrating the first integration signal and outputting a second integration signal, a comparator comparing the second integration signal and a reference signal and outputting a digital signal according to the comparison result, and a digital-to-analog converter converting the digital signal into an analog signal in response to a clock signal and outputting the converted analog signal, wherein the second integrator operates based on an Nth order (where N is natural number of 1 or greater) transfer function. |
申请公布号 |
US2015200678(A1) |
申请公布日期 |
2015.07.16 |
申请号 |
US201414308752 |
申请日期 |
2014.06.19 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
CHO Young Kyun;JUNG JAE HO;LEE Kwangchun |
分类号 |
H03M1/00;H03M3/00 |
主分类号 |
H03M1/00 |
代理机构 |
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代理人 |
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主权项 |
1. A delta-sigma modulator comprising:
a summer summing an input signal and an analog signal; a first integrator integrating an output signal from the summer and outputting a first integration signal; a second integrator integrating the first integration signal and outputting a second integration signal; a comparator comparing the second integration signal and a reference signal and outputting a digital signal according to the comparison result; and a digital-to-analog converter converting the digital signal into an analog signal in response to a clock signal and outputting the converted analog signal, wherein the second integrator operates based on an Nth order (where N is natural number of 1 or greater) transfer function. |
地址 |
Daejeon KR |