In this paper, a high speed delay-locked loop (DLL) architecture ispresented which can be employed in high frequency applications. In order to design the new architecture, a new mixed structure is presented for phase detector (PD) and charge pump (CP) which canbe triggered by double edges of the input signals. In addition, the blind zone is removed due to the elimination of reset signal. Theref...

Pressure-composition isotherm measurements show that the ternary lanthanum palladium silicide phase La3Pd5Si absorbs reversibly up to 5 hydrogen atoms per formula unit at 550 K and 14 bar hydrogen pressure. In-situ synchrotron and neutron powder diffraction reveals three phases, an alpha-phase having the limiting composition La3Pd5SiD approximately 1.6 at low deuterium pressure (at up to 9.5 ba...

Most systems which require phase information use mixers somewhere in the measurement or comparison of the phase information. Theoretically, any mixer with a dc coupled port could be used as a phase detector. Practically, however, mixers often display some very non-ideal characteristics (e.g., dc offset) when used as phase detectors. The actual mixer chosen for a particular application will ofte...

-The proposed paper shows existing problems in VCO’s and synthesizers due to the nonlinearities in the active devices and external integrated circuits. This paper proposes a design guidance on how to minimize such effects in oscillators by using nonlinear, rather than linear, tools. In synthesizers, the reference frequency and its harmonics will mix with the output frequency in the phase detect...

Attosecond science relies on the use of intense, waveform-controlled, few-cycle laser pulses1 to control extreme nonlinear optical processes taking place within a fraction of an optical period. A number of techniques are available for retrieving the amplitude envelope and chirp of such few-cycle laser pulses. However, their full characterization requires detection of the absolute offset between...

Neuroimaging has provided insight into the pathophysiology and natural history of Parkinson’s disease (PD) and has emerged as a tool to monitor disease progression and to assess new potentially neuroprotective or neurorestorative therapies for PD. Diverse imaging methods have been successfully applied to neurological disorders. While technology like functional magnetic resonance imaging or magn...

Traditional constant false alarm rate (CFAR) detectors only use the contrast information between ship targets and clutter, and they suffer probability of detection (PD) degradation in multiple target situations. This paper proposes a correlation-based joint CFAR detector using adaptively-truncated statistics (hereafter called TS-2DLNCFAR) in SAR images. The proposed joint CFAR detector exploits...

We report on photo-detectors consisting of an optical waveguide that incorporates a resonant tunneling diode (RTD). Operating at wavelengths around 1.55 μm in the optical communications C band we achieve maximum sensitivities of around 0.29 A/W which is dependent on the bias voltage. This is due to the nature of RTD nonlinear current-voltage characteristic that has a negative differential resis...

This letter introduces a novel phase detector (PD) for suppressing the reference spur in 40 GHz integer- $N$ phase-locked loop (PLL). Coined as spur-compensation (SCPD), proposed SCPD duplicates itself to an auxiliary path edge-combin...