发明名称 |
Dynamic element-matching method, multi-bit DAC using the method, and delta-sigma modulator and delta-sigma DAC including the multi-bit DAC |
摘要 |
Provided are a dynamic element-matching method, a multi-bit Digital-to-Analog Converter (DAC), and a delta-sigma modulator with the multi-bit DAC and delta-sigma DAC with the multi-bit DAC. The dynamic element-matching method relates to preventing periodic signal components (in-band tones) from being generated from a delta-sigma modulator of a delta-sigma Analog-to-Digital Converter (ADC) and a multi-bit DAC used in a delta-sigma DAC. Unit elements are selected in a new sequence according to a simple algorithm every time that each of unit elements is selected once, and thus the unit elements are not periodically used. Consequently, it is possible to prevent in-band tones caused by a conventional Data Weighted Averaging (DWA) algorithm.
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申请公布号 |
US7719455(B2) |
申请公布日期 |
2010.05.18 |
申请号 |
US20080195232 |
申请日期 |
2008.08.20 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
KIM YI GYEONG;CHO MIN HYUNG;KWON CHONG KI |
分类号 |
H03M1/66 |
主分类号 |
H03M1/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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