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Power noise aware clocking in modern chips can reduce power supply noises and relax on-chip timing requirements during power drooping. This paper proposes and demonstrates a power noise simulation method to consider these two effects. Measurement results are also presented.
This work presents an efficient power delivery network design for mitigating the coupling of power supply noise in mixed-signal electronics using power transmission lines. Digital circuitry operating at high data rates generates supply noise that can interfere with sensitive RF circuitry. Currently used methods, such as split planes and ferrite beads, have limited isolation bandwidth and can pose...
Based on a system-level design methodology and a modified power delivery network model, optimization and benchmarking are performed for a processor implemented with the power-gating technique under various package configurations. Optimal widths of the sleep transistors are obtained based on how frequently the processors need to switch between active and idle state. Up to 75% of the energy-delay product...
Transient analysis of Switching Power Converter (SPC) circuits is a computationally expensive task. This high expense arises from the fact that these circuits are driven by a clock with a period that is very small compared to the time interval the designer is typically interested in. Envelope-Following (EF) technique has been recently proposed in the literature for efficient time-domain simulation...
Electromagnetic interference (EMI) is becoming more serious when the data rate of the digital system continues increasing. However, its modeling and analysis are very challenging. In this paper, a novel electromagnetic superposition method is developed to model the IC packaging electromagnetic emission. It employs the equivalence principle to obtain the electromagnetic field response over a broad...
This paper describes a method of moments (MoM) based on isogeometric analysis (IGA) for electrostatic field simulations of curved multiconductor transmission lines (MTLs). IGA is a novel concept introduced in the fields of numerical analysis and computer-aided design (CAD) for mechanical engineering. In IGA, B-spline functions are used for both representing curved objects in CAD and approximating...
This paper presents a stochastic Latency Insertion Method formulation using the generalized Polynomial Chaos framework. The proposed method enables fast simulation of circuits with uncertain elements. When the mean and variance of circuit elements are provided in the netlist, this method can calculate the statistics of the transient response to arbitrary sources using an augmented state space system...
A method for fast and accurate prediction of statistical eye diagram in an 8bl0b-coded high speed digital channel is proposed. Based on the recursive algorithm proposed in [1], we modify the equal-1-0-probability assumption and make it suitable for an 8bl0b-coded channel. Simulation of a 30cm-long high speed channel is conducted to verify the effectiveness of this algorithm. The results not only show...
In this paper, we present a statistical simulation approach to evaluate the performance of high-speed links with transmitter and receiver nonlinearities. The linear time-invariant assumption in conventional fast simulation techniques is not anymore valid. The transmitters and receivers of current and next generation high-speed links are more complex and nonlinear in order to improve power and area...
This paper proposes a technique that allows to decouple the polynomial chaos equations for statistical interconnect analysis. The methodology is based on a transformation that renders the voltage and current polynomial chaos coefficients decoupled. Hence, these new decoupled coefficients are computed via repeated non-intrusive simulations. The advocated method maintains comparable accuracy with respect...
In this paper, a stochastic Galerkin formulation for the variability analysis of power distribution network (PDN) structures within a SPICE environment is proposed. The key feature of this work is that the augmented PDN model arising due to the Galerkin projection is realized using a 3D topology of multiconductor transmission lines. Thereafter, a sophisticated delay extraction based modeling technique,...
This paper develops metastability error models for flash and asynchronous SAR ADCs and describes a novel ADC-based receiver statistical modeling methodology to analyze the BER performance impact of metastability error propagation through digital FFE equalization.
This paper presents a millimeter wave-guiding technique for passive frequency band splitting and combining. The devices which can be made possible as a result of implementing this technique have potential for use in high speed signaling systems for the purpose of facilitating the transmission of multiple carrier frequency signals through the same guiding structure. The device splitting operation causes...
Two different module referencing schemes, one with split ground planes between transmit/receive (TX/RX), and the other with a common ground plane, are first compared using models generated from 3D full-wave solver, and then the two different module designs are built and tested. The measurements performed and test data on the manufactured modules includes TX output high-low amplitude, eye height, RX...
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