The ring oscillator couples to the charge pump, the optional low pass filter, the output signal line, and the divider. A method also discloses generating a low jitter output signal using a supply noise immunity low jitter voltage controlled oscillator.doi:US6246294 B1Weixin Gai...
Analyzing power supply noise characteristics and predicting its jitter impact is critical in designing the 12.8Gbps single-ended memory interface achieving better than 5mW/Gbps energy efficiency. The clocking circuit jitter performance is characterized by jitter sensitivity. The power supply noise induced ...
Power delivery has been identified as one of the key factors that impact signal integrity performance. It refers not only topower supply noisedegrading signal jitter performance but also throughout the interconnect as power delivery noise coupling to signals. While high-frequency power supply noise is...
In this paper, we propose two methods to estimate clock jitter caused by power supply noise in a LSI (Large-Scale Integrated circuit). One of the methods enables estimation of clock jitter at the initial design stage before floor-planning. The other method reduces simulation time of clock dist...
6Citations (Scopus) Abstract An 80-to-832MHz all-digital 8-differential-phase DLL in a 0.18um CMOS process has been developed to achieve low-jitter and supply noise tolerance using dual window phase detector, noise tolerant delay cell and delay compensation under supply noise. The pr...
The Si534x is an industry-leading family of high-performance, ultra-low jitter Clock Generators and Jitter Attenuating Clocks. The Skyworks Solutions Si534x series can easily perform in systems with low to moderate power supply noise using simple power supply bypass capacitors. In systems with ...
The design of a low jitter PLL has become challenging because of the many design trade-offs between noise and bandwidth. In order to achieve a low jitter PLL design, fully differential signal and control paths of the VCO are maintained. Also, a proposed bandgap regulator helps to achieve ...
This paper describes the modeling of jitter in clock-and-data recovery (CDR) systems using an event-driven model that accurately includes the effects of power-supply noise, the finite bandwidth (aperture window) in the phase detector's front-end sampler, and intersymbol interference in the syste...
Duty-cycle jitter is very critical, especially at higher clock frequencies, and must be minimized. To estimate the required low-frequency noise for a DC/DC converter, Figure 4 shows the low-frequency noise of a typical low-noise LDO vs. a DC/DC converter. Low-Noise and Low-Ripple ...
To reduce jitter noise between different switching regulators in the system, it is preferable to work with an output voltage ripple greater than 25 mV. As far as it concerning the load transient requirements, the equivalent series resistance (ESR) of the output capacitor must satisfy the ...