发明名称 DATA WEIGHTED AVERAGING CIRCUIT, INCREMENTAL DELTA-SIGMA AD CONVERTER, AND DATA WEIGHTED AVERAGING METHOD
摘要 PROBLEM TO BE SOLVED: To suppress reduction of the effect by data weighted averaging, due to different weight of the digital input signal.SOLUTION: For each digital input signal consisting of a thermometer code represented by L (L is an integer of 2 or more) bit strings, a digital output signal consisting of L bit strings, where the bit position of the digital input signal is staggered according to a pointer capable of taking L types of value, is generated. At this time, based on the magnitude of a data value represented by a thermometer code and the L, the pointer is updated for each digital input signal, and for each conversion cycle where a digital input signal group consisting of a predetermined number of digital input signals is inputted, any one of all candidates, i.e., the values that the pointer can take, is set as the initial value of pointer, for the digital input signal inputted at first of a conversion cycle.SELECTED DRAWING: Figure 10
申请公布号 JP2016213598(A) 申请公布日期 2016.12.15
申请号 JP20150094083 申请日期 2015.05.01
申请人 ASAHI KASEI ELECTRONICS CO LTD 发明人 MIYAHARA YOSHIICHI;SHIDA RYOSUKE;KATAYAMA TAKATO
分类号 H03M3/02 主分类号 H03M3/02
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