Departmental Bulletin Paper ΔΣ構造を用いた GROTDC のノイズ低減に関する研究

中村, 有輝

57pp.1 - 5 , 2016-03-24 , 法政大学大学院理工学・工学研究科
In this paper, a new Time-to-Digital Converter (TDC) using Gated Ring Oscillator (GRO) TDC and delta-sigma structure is proposed. This circuit has a third-order noise shaping by combining a second-order GROTDC and first-order delta-sigma tructure. It can reduce the quantization error due to device mismatch. The proposed circuit improves SNR of 16 [dB]. Key Words: GROTDC, delta-sigma structure, noise shaping

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