Multirate ΣΔ modulator를 위한 멀티 페이즈 논오버랩핑 클럭 발생기의 구현
양영태, 이현중, 조준수, 나승인, 김수환
Abstract
양영태, 이현중, 조준수, 나승인, 김수환
Abstract
A multi-phase non-overlapping clock generator is essential circuit in multirate ΣΔ modulators. By improving conventional 2 phase non-overlapping clock generator, multi-phase non-overlapping clock generator is implemented in this paper. This paper also describes how to generate arbitrary non-overlapping clock with clock divider and combinational logic. Compared with 8 phase non-overlapping clock generator and the proposed clock generator, clock skew difference decreases 62.2%, but power consumption only increases 24.5%.
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A multi-phase non-overlapping clock generator is essential circuit in multirate ΣΔ modulators. By improving conventional 2 phase non-overlapping clock generator, multi-phase non-overlapping clock generator is implemented in this paper. This paper also describes how to generate arbitrary non-overlapping clock with clock divider and combinational logic. Compared with 8 phase non-overlapping clock generator and the proposed clock generator, clock skew difference decreases 62.2%, but power consumption only increases 24.5%.
Key concepts: Clock domain crossing, Digital clock manager, Clock skew, Clock gating, Clock generator, CPU multiplier, Synchronous circuit, Clock signal