single loop /spl Delta//spl Sigma/ modulators
K-DELTA-1-SIGMA MODULATORS FOR WIDEBAND ANALOG-TO-DIGITAL CONVERSION
... can only be realized by using the CIFB (cascade of integrators, feedback form) and CIFF (cascade of integrators, feed-forward form) topologies. Now, we need to account for the charge-spreading filter in the K-SCIs used in ...
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An Improved Architecture for Multiple-Order Single-Bit Quantizer Based Over-Sampled Delta-Sigma Modulators
... Multiple-Order, Single-bit Quantizer based Over-Sampled Delta-Sigma Modulator (DSM) is ...of single-order architecture but includes an added feedback path circuit to establish multiple- order ...
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Nonlinear Stability Prediction of Multibit Delta Sigma Modulators for Sinusoidal Inputs
... for Delta-Sigma (Δ-Σ) modulators are complicated to predict due to the non-linearity of the ...Δ-Σ modulators and is limited to 1 st - and 2 nd - order Δ-Σ modulators ...Δ-Σ ...
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Force feedback linearization for higher order electromechanical sigma delta modulators
... resulting nonlinear effect is not considered. This is not a valid assumption for high performance sensors [7–9]. This paper analyses the nonlinearities arising from the conversions between the mechanical and electrical ...
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On the synthesis and optimization of cascaded continuous-time Sigma-Delta modulators
... CT loop-filter LF or CT connecting loop-filter CLF and sampler to its DT equivalent allows for each noise transfer function, ...all single stage modulators in the cascade, while maintaining a ...
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A New Approach to Complex Bandpass Sigma Delta Modulator Design for GPS/Galileo Receiver
... have single feed- back DAC, which is due to degradation in excess loop delay and clock jitter effects in compared with ...complex loop filter architecture of quadrature sigma ...
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State scaling of continuous-time sigma-delta modulators
... like sigma delta modulators David F.Hoeschele (1994). Sigma delta data converters are com- pared to simple Nyquist rate or oversampled data converters, feedback systems and thus have ...
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Sigma Delta Modulators: A Review
... (CT) sigma-delta (ΣΔ) modulator is presented in this paper for biomedical ...new loop filter with a single-opamp resonator, a 4-bit asynchronous successive-approximation register (SAR) ...
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Time-Mode Signal Quantization for Use in Sigma-Delta Modulators
... (CT) sigma- delta modulator employing a synchronous ramp-based pulse-width modulator (PWM) as the VTC and a multi- bit flash TDC as the sampler is ...
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Tonality index of sigma delta modulators: a psychoacoustics model based approach
... the SPL excess level against the value of T in the region ...its SPL excess level is found to be 30 dB. The SPL excess level remains constant up to T = ...
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Reduced sphingosine kinase-1 and enhanced sphingosine 1-phosphate lyase expression demonstrate deregulated sphingosine 1-phosphate signaling in Alzheimer’s disease
... Inversely, SPL which is the final enzyme in the sphingo- lipid degradative pathway controls the only exit point for sphingolipid ...levels, SPL is a gatekeeper of a critical node of lipid meta- bolic flow ...
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Kinematic control of male Allen's hummingbird wing trill over a range of flight speeds
... Wing trills are pulsed sounds produced by modified wing feathers at one or more specific points in time during a wingbeat. Male Allen ’ s hummingbirds (Selasphorus sasin) produce a sexually dimorphic 9 kHz wing trill in ...
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The E6/E7 promoter of human papillomavirus type 16 is activated in the absence of E2 proteins by a sequence-aberrant Sp1 distal element.
... To test the function of the Spl distal element in vivo, we transfected OVEC vectors with wild-type and mutated HPV-16 Spl-binding sites and the SV40 enhancer in close position into SiHa,[r] ...
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Conversion of Object Oriented System into Software Product Line with Delta Modeling Abstract Behavioral Specification
... using delta modeling of Abstract Behavioral Specification ...supports SPL development with delta ...into SPL and implement another web ser- vice called ...into SPL is because it is ...
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Zsim: a table-based Z-domain simulator for delta-sigma modulators
... Table 3.2: Run time comparison using tables, difference equations, and SPICE 38 Table 4.1: SDR summary for ideal table and difference equation simulations o o o o u o... LIST OF FIGURES.[r] ...
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Zsim: a non-linear Z-domain simulator for delta-sigma modulators
... Difference equation simulations along with decimation, baseband filtering and post processing are performed to verify the performance of the mod ulator. At this stage, circuit-level impl[r] ...
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Malignant Lymphoma in the Parasellar Region
... In conclusion, we have described a case of SPL which was successfully treated with chemotherapy. Transsphenoidal biopsy was required because the differential diagnosis was difficult based on only radiological and ...
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SPL6 , SPL 12 and SPL 13) contain miR156 cleavage sites and their
... Although there is no concrete data to support the evolutionary history of the first miRNAs, studies have provided clues for the origin of newly evolved plant miRNAs. Three models have been proposed to explain the origins ...
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2nd Order Sigma Delta Modulator Using Reversible Fredkin and Toffoli Gates
... circuit. As the sigma-delta modulators are sampled data system, they are readily implemented using switched capacitor (SC) circuit in CMOS technology. The reason for adopting the differential ...
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Profiling structured product labeling with NDF-RT and RxNorm
... The SPL drug labels contain rich information about FDA approved clinical ...map SPL drug labels with existing drug ontologies: NDF-RT and ...classify SPL drug labels into corresponding ...for ...
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