Zhengtao Yu

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Rotary clock is a multi-gigahertz clock distribution technique based on the principle of wave propagation in transmission lines. In this paper, we perform the first quantitative investigation on the power dissipation of rotary clock designs. Specifically, we have developed a software tool based on the method of partial element equivalent circuit (PEEC) that(More)
Rotary clock technique has been shown to reduce the power dissipation of clock distribution by up to 80%. However, to our knowledge, no practical digital synchronous circuit has been designed that utilizes the rotary technique due to the multi-phase nature of rotary clock signals and the strong coupling between a rotary clock network and the circuit it(More)
This paper presents a circuit optimization technique called skewspreading. Given an edge-triggered sequential circuit, skew spreadingderives the required clock arrival times for all registers so that theskews are distributed evenly in a preselected time window without changing the operating frequency of the circuit. Skew spreading is ideal for peak current(More)
This paper presents a low-power and high-speed finite impulse response (FIR) filter design. The uniqueness of our design is that it utilizes a resonant clocking technique, called rotary clock. Through custom design steps such as clock skew assignments, register placement, multi-phase clock routing, the proposed FIR filter is seamlessly integrated with(More)
I4–carbon was first proposed by Zhang et al., this paper will report regarding this phase of carbon. The present paper reports the structural and elastic properties of the three-dimensional carbon allotrope I4–carbon using first-principles density functional theory. The related enthalpy, elastic constants, and phonon spectra confirm that the newly-predicted(More)
For synchronous circuit designs, the clock network is a major power consumer, often contributing more than 20% of overall power consumption. Consequently, power-efficient clock distribution methods have been extensively researched. In particular, the rotary clock technique is one low-power clocking approach that utilizes the LC oscillating principle to(More)
In this paper, we present a Systems-on-Chip (SoC) design for the 3G Code Division Multiple Access (CDMA) receiver using the multiple-input multiple-output (MIMO) technique. Our chip integrates the entire digital signal processing part of the receiver. Furthermore, the proposed design can be reconfigured in real-time to handle different modulation schemes(More)
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