WebJan 27, 2010 · To reduce reference spurs, the current mismatch in the charge pump must be minimized. This paper presents a dual compensation method to reduce the current mismatch. Current matching characteristics can be achieved with less than 0.15% difference in the pump current over the charge pump output voltage range of 0.25 … WebMay 15, 2009 · In this work, non idealities in phase frequency detector and charge pump contributing to static phase offset have been studied and their relative contributions analyzed in detail. A new charge pump architecture with reduced mismatch between Up and Dn current sources has been presented.
A Charge Pump with Perfect Current Matching Applied to Phase …
Web1.1 V supply. Thus, the proposed CP maximizes the dynamic range, and reduces the phase offset and reference spur of CP-PLLs. key words: charge pump, current mismatch, dynamic range, phase-locked loop Classification: Integrated circuits (memory, logic, analog, RF, sensor) 1. Introduction Benefit from the characteristics of high speed, low jitter and WebAug 1, 2024 · Proposed circuit is designed for 100 μA charge pump current (I CP) and it achieves less than 1% mismatch current across all process corners for an output … brooklyn roofing and general contractors
Analysis and Design of Charge Pumps for …
Web2.1 Single-ended charge pump architectures Single-ended charge pump circuits are an elegant approach to system flexi-bility, low-power consumption, minimization of pads and external compo-nents, or area. T he output current of the charge pump can be as high as 4.5mA [23] at lock to provide better spur performance thus less leakage current and WebAbstract. A charge pump (CP) is widely used in modern phase-locked loop (PLL) implementations. The CP current mismatch is a dominant source of static phase offset and reference spur in the PLL output signals. In this paper, a novel CP with small current mismatch characteristic over a wide output voltage range is proposed. WebJun 24, 2006 · Compared with conventional charge pump circuit, the current mismatch of the proposed charge pump circuit is less than 0.5% within the output voltage dynamic … brooklyn row houses history