نتایج جستجو برای: digital integrator
تعداد نتایج: 316835 فیلتر نتایج به سال:
The use of a VCO-based integrator and quantizer within a continuous-time (CT) analog-to-digital converter (ADC) structure is explored, and a custom prototype in a 0.13 m CMOS with a measured performance of 81.2/78.1 dB SNR/SNDR over a 20 MHz bandwidth while consuming 87 mW from a 1.5 V supply and occupying an active area of 0.45 mm demonstrated. A key innovation is the explicit use of the oscil...
In this paper we are using new method called “A fast –locking digital DPLL using integrator and diffentiator controlling with VHDL AMS and Matlab. This method reduces the locking Time and improves performance of DPLL. In the Previous method the fast locking DPLL operation Reduces the lock time by a factor about 4.10 Compared to its conventional DPLL counterpart. But the proposed method more eff...
Absrracr-The low sensitivity property of lossless discrete integrator (LDI) low-pass ladder filters is shown to be preserved in lossless discrete differentiator (LDD) high-pass ladder filters 111. The exact design method for LDI ladder filters given in [Z] is further developed by introducing a set of closed-form design formulas for digital ah-pole Chebyshev transfer functions. A new technique f...
A fully-integrated, high-speed, wideband receiver called the random modulation pre-integrator is realized in IBM 90nm digital CMOS. It achieves an effective instantaneous bandwidth of 2GHz, with >54dB dynamic range. Most notably, the aggregate digitization rate is fs =320MSPS, 12.5× below the Nyquist rate. Signal recovery can be accomplished for any signal with a concise representation. The sys...
This paper introduces a digitally performed current mode and voltage control for the dc-dc step down converter based on voltage to frequency converter where the average values of inductor current and output voltage are obtained. These current and voltage measurement are realized by the voltage control oscillator (VCO) and counters (digital integrator). Such an approach enables full digitalizati...
Sigma-delta (Σ∆) modulators are widely used for analogue-to-digital and digital-to-analogue conversion in both discrete-time and continuous-time implementations [1]. A Σ∆ modulator is an example of a nonlinear system, the nonlinearity being introduced by the presence of the quantiser. In [2] we applied results of our work on driven interval shifts to explain the steady-state dynamics of the fir...
[This corrects the article DOI: 10.1371/journal.pgen.1006809.].
We examine a new 2nd order integrator recently found by Omelyan et al. The integration error of the new integrator measured in the root mean square of the energy difference, 〈∆H2〉1/2, is about 10 times smaller than that of the standard 2nd order leapfrog (2LF) integrator. As a result, the step size of the new integrator can be made about three times larger. Taking into account a factor 2 increa...
One of the most important tasks in design and manufacturing of integrated circuits is the testing phase. Distinguishing between faulty and fault free ICs is a difficult task Therefore, simulations are being done for different circuits to identify fault free and faulty circuits. The circuits include analog circuits, digital circuits &mixed signal circuits. Analog circuits like Low pass filter, H...
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