Showing papers by "Jai Narayan Tripathi published in 2014"
01 Nov 2014
TL;DR: This work describes both statistical domain methods and frequency domain methods for jitter estimation, which are based on fitting techniques and frequency spectrum analysis respectively.
Abstract: With the advancement of VLSI technology, the effect of jitter is becoming more critical on high speed signals. To negate the effect of jitter on these signals, the causes of jitter in a circuit need to be identified by decomposing the jitter. In this paper, a comparative analysis of various jitter estimation techniques is presented. The statistical domain methods are based on fitting techniques while the frequency domain methods are based on frequency spectrum analysis. This work describes both statistical domain methods and frequency domain methods. Further, their strengths and limitations are discussed. The algorithms are implemented in MATLAB and the results are extensively verified with Agilent ADS.
14 citations
01 Jun 2014
TL;DR: This paper provides a generic formulation for decoupling capacitor selection and placement problem which is solved by mixed-integer programming.
Abstract: Power Integrity is maintained in a high speed system by designing an efficient decoupling network This paper provides a generic formulation for decoupling capacitor selection and placement problem which is solved by mixed-integer programming A real-world example is presented for the same The minimum number of capacitors that could achieve the target impedance over the desired frequency range are found along with their optimal locations In order to solve an industrial problem, the s-parameters data of power plane geometry and capacitors are used for the accurate analysis including bulk capacitors and VRM
4 citations
01 Jun 2014
TL;DR: The HDMI open drain transmitter is designed to harvest power from the receiver, through the termination impedances during signaling, with no local power supply needed at the transmitter side.
Abstract: The HDMI open drain transmitter is designed to harvest power from the receiver, through the termination impedances during signaling. There is no local power supply needed at the transmitter side, neither any power is taken from the receiver apart from whatever power comes out of it during standard signaling. The zero power HDMI Transmitter capable of datarate 4.95Gbps, i.e. 1.65Gbps per Channel is designed in 65nm technology.
2 citations
01 Dec 2014
TL;DR: In this article, a BGA package design exhibiting resonance conditions in insertion loss is analyzed, which led to ground path issues caused by return current density congestions, and an improvement in ground return path layout led to elimination of resonance conditions.
Abstract: Proper transmission of high speed signal requires sufficiently high bandwidth of the medium. The reference planes play a vital role in achieving distortion-free signal propagation. In this paper a BGA package design exhibiting resonance conditions in insertion loss is analyzed. Analysis led to ground path issues caused by return current density congestions. Improvement in ground return path layout led to elimination of resonance conditions. Re-designed package is meeting the intended design target for HDMI 2.0 standards.
2 citations
01 Oct 2014
TL;DR: Three natural computing algorithms - Particle Swarm Optimization, Cuckoo Search and Firefly Algorithm are used and compared for solving an industrial problem of power delivery network design.
Abstract: This paper presents application of nature inspired algorithms for solving an industrial problem of power delivery network design. To achieve the target impedance in a power delivery network, optimum number of decoupling capacitors and their optimum locations on board are found from thousands of available capacitors. S-parameters based data is used for the accurate analysis. Three natural computing algorithms - Particle Swarm Optimization, Cuckoo Search and Firefly Algorithm are used and compared for solving this problem.