发明授权
US08274415B2 Sigma-delta modulator apparatus and method of generating a modulated output signal
有权
Σ-Δ调制器装置和产生调制输出信号的方法
- 专利标题： Sigma-delta modulator apparatus and method of generating a modulated output signal
- 专利标题（中）： Σ-Δ调制器装置和产生调制输出信号的方法
-
申请号： US12866248申请日： 2008-02-13
-
公开(公告)号： US08274415B2公开(公告)日： 2012-09-25
- 发明人: Hassan Ihs , Frederic Schrive
- 申请人： Hassan Ihs , Frederic Schrive
- 申请人地址： US TX Austin
- 专利权人： Freescale Semiconductor, Inc.
- 当前专利权人： Freescale Semiconductor, Inc.
- 当前专利权人地址： US TX Austin
- 国际申请： PCT/IB2008/051780 WO 20080213
- 国际公布： WO2009/101486 WO 20090820
- 主分类号： H03M3/00
- IPC分类号： H03M3/00
摘要：
A discrete time sigma-delta modulator apparatus for class-D operation comprises a feed-forward path having an input at one end thereof and an output at another end thereof. A first summation unit is coupled in the feed-forward path to a first integrator. A quantizer is coupled in the feed-forward path after the first integrator and a feedback path arrangement is coupled to an input of the first summation unit. A low pass filter is arranged in the feedback path arrangement so as only to drive the first integrator.
公开/授权文献
信息查询
