发明授权
- 专利标题: Signal converting apparatus for integrating analog-to-digital converter and digital-to-analog converter and integration unit
- 专利标题(中): 用于集成模数转换器和数模转换器和集成单元的信号转换装置
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申请号: US11216402申请日: 2005-08-30
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公开(公告)号: US07138932B1公开(公告)日: 2006-11-21
- 发明人: Hsu-Min Chen
- 申请人: Hsu-Min Chen
- 申请人地址: TW Hsinchu
- 专利权人: ITE Tech. Inc.
- 当前专利权人: ITE Tech. Inc.
- 当前专利权人地址: TW Hsinchu
- 代理机构: J.C. Patents
- 优先权: TW94116050A 20050518
- 主分类号: H03M1/02
- IPC分类号: H03M1/02
摘要:
A signal converting apparatus for integrating an analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) and an integration unit thereof are provided. The present invention integrates ADC and DAC, that do not operate simultaneously, into a signal converting apparatus (SCA), wherein a control signal decides whether an analog-to-digital mode or a digital-to-analog mode is selected. By sharing the operational amplifiers and other components in the SCA, the chip area and the cost are significantly reduced. In addition, in the integration unit, by switching a plurality of capacitor sets with various capacitances, the capacitance coefficients required for switching ADC and DAC are obtained.
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