发明申请
US20090195425A1 Method and device for digital-to-analog conversion with filtering
有权
用于通过滤波进行数模转换的方法和装置
- 专利标题: Method and device for digital-to-analog conversion with filtering
- 专利标题(中): 用于通过滤波进行数模转换的方法和装置
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申请号: US11904510申请日: 2007-09-26
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公开(公告)号: US20090195425A1公开(公告)日: 2009-08-06
- 发明人: Petri T. Eloranta , Pauli Seppinen , Aarno Parssinen
- 申请人: Petri T. Eloranta , Pauli Seppinen , Aarno Parssinen
- 专利权人: Nokia Corporation
- 当前专利权人: Nokia Corporation
- 主分类号: H03M1/66
- IPC分类号: H03M1/66
摘要:
The invention relates to a device and a method for converting a digital signal having a plurality of data-bits into a filtered analog signal. A device according to the invention includes a delay element arranged to produce one or more differently delayed version of the digital signal and a digital-to-analog conversion circuitry arranged to convert the digital signal and the one or more differently delayed, and possibly differently scaled, versions of the digital signal into analog signals and to produce the filtered analog signal as a combination of the analog signals. Therefore, the device constitutes not only a digital-to-analog-converter but also a finite impulse response filter.
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