Invention Application
US20140077984A1 DELTA-SIGMA MODULATOR USING HYBRID EXCESS LOOP DELAY ADJUSTMENT SCHEME AND RELATED DELTA-SIGMA MODULATION METHOD
审中-公开
使用混合循环延迟调整方案的DELTA-SIGMA调制器及相关DELTA-SIGMA调制方法
- Patent Title: DELTA-SIGMA MODULATOR USING HYBRID EXCESS LOOP DELAY ADJUSTMENT SCHEME AND RELATED DELTA-SIGMA MODULATION METHOD
- Patent Title (中): 使用混合循环延迟调整方案的DELTA-SIGMA调制器及相关DELTA-SIGMA调制方法
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Application No.: US14022182Application Date: 2013-09-09
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Publication No.: US20140077984A1Publication Date: 2014-03-20
- Inventor: Yun-Shiang Shu
- Applicant: MEDIATEK INC.
- Applicant Address: TW Hsin-Chu
- Assignee: MEDIATEK INC.
- Current Assignee: MEDIATEK INC.
- Current Assignee Address: TW Hsin-Chu
- Main IPC: H03M3/00
- IPC: H03M3/00
Abstract:
A delta-sigma modulator has a delta-sigma modulation loop and a plurality of excess loop delay (ELD) adjustment circuits. The delta-sigma modulation loop converts an analog input into a digital output. The ELD adjustment circuits perform different ELD adjustments according to the digital output for jointly adjusting an ELD of the delta-sigma modulation loop. Besides, a delta-sigma modulation method includes at least the following steps: converting an analog input into a digital output through a delta-sigma modulation loop; and employing different ELD adjustment schemes for jointly adjusting an ELD of the delta-sigma modulation loop according to the digital output.
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