A Noise-Shaping Algorithm of Multi-bit DAC Nonlinearities in Complex Bandpass ΔΣAD Modulators(<Special Section>Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
スポンサーリンク
概要
- 論文の詳細を見る
This paper presents a technique for improving the SNR and resolution of complex bandpass ΔΣADCs which are used for wireless communication systems such as cellular phone, wireless LAN and Bluetooth. Oversampling and noise-shaping are used to achieve high accuracy of a ΔΣAD modulator. However when a multi-bit internal DAC is used inside a modulator, nonlinearities of the DAC are not noise-shaped and the SNR of the ΔΣADC degrades. For the conversion of complex intermediate frequency (IF) input signals, a complex bandpass ΔΣAD modulator can provide superior performance to a pair of real bandpass ΔΣAD modulators of the same order. This paper proposes a new noise-shaping algorithm-implemented by adding simple digital circuitry-to reduce the effects of nonlinearities in multi-bit DACs of complex bandpass ΔΣAD modulators. We have performed simulation with MATLAB to verify the effectiveness of the algorithm, and the results show that the proposed algorithm can improve the SNR of a complex bandpass ΔΣADC with nonlinear internal multi-bit DACs.
- 2004-04-01
著者
-
SAN Hao
Department of Information Network Engineering, Tokyo City University
-
KOBAYASHI Haruo
Department of Electronic Engineering, Graduate School of Engineering, Gunma University
-
San Hao
Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
Kobayashi Haruo
Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
Kobayashi Haruo
The Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
Kobayashi Haruo
Sanyo Lsi Design-system Soft Co. Ltd.
-
Kobayashi H
The Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
Kobayashi H
Sanyo Lsi Design-system Soft Co. Ltd.
-
KAWAKAMI Shinya
Department of Electronic Engineering, Faculty of Engineering, Gunma University
-
KUROIWA Nobuyuki
Department of Electronic Engineering, Faculty of Engineering, Gunma University
-
Kuroiwa Nobuyuki
Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
Kawakami Shinya
Department Of Electronic Engineering Faculty Of Engineering Gunma University
-
KOBAYASHI HARUO
Department of Animal Breeding, Faculty of Agriculture, University of Tokyo
関連論文
- Noise-Coupled ΔΣAD Modulator with Shared OP-Amp
- Noise-Coupled Image Rejection Architecture of Complex Bandpass ΔΣAD Modulator
- Cross-Noise-Coupled Architecture of Complex Bandpass ΔΣAD Modulator
- EFFECTS OF FORMALIN-PRESERVATION ON ELEMENT CONCENTRATIONS IN ANIMAL TISSUES
- Dose-response relationship of N-methyl-N-nitrosourea in inducing micrencephaly in mouse off-spring (NEREVOUS SYSTEM) (GENERAL SESSION BY POSTER PRESENTATION) (Proceedings of the 30th Annual Meeting)
- EMI Reduction by Spread-Spectrum Clocking in Digitally-Controlled DC-DC Converters
- Factors Influencing the Human Biochemical Responses to Mental Stresses : A Preliminary Study on Gender Difference, psychological Characteristics, properties of the Stresses, and Alleviation by the Action of Kai-Gou, a Relaxation strategy of Qi-Gong
- Effects of Kai-Gou(Air-Ball Handling), a Qi-Gong Strategy, on the Biofeedback Training for Enhancement of the Electroencephalographic α-Activity
- Analysis of Coupled Inductors for Low-Ripple Fast-Response Buck Converter
- Lack of Correlation of Organophosphorus-Induced Delayed Neuropathy with Neuropathy Target Esterase in Hens and Japanese Quails
- RECENT PROGRESS IN THE NEUROTOXICOLOGY OF NATURAL DRUGS ASSOCIATED WITH DEPENDENCE OR ADDICTION, THEIR ENDOGENOUS AGONISTS AND RECEPTORS
- Brain Regional Cholinergic Activities in Rats Prenatally Treated with a Microencephalic
- Actin-Depolymerizing Effect of Dimeric Macrolides, Bistheonellide A and Swinholide A^1
- "P-63 The correlation of organophosphorus-induced delayed neuropathy with neuropathy target esterase.
- Effects of Tri :, Di : and Monobutyltin on Synaptic Parameters of the Cholinergic System in the Cerebral Cortex of Mice
- Tolerant phenomena and muscarinic receptor subtypes in rats treated repeatedly with anticholinesterases.
- COMPLEMENTARY IMPROVEMENT OF THE METHOD FOR DETERMINING CHOLINERGIC ACTIVITIES IN THE SMALL INTESTINE AND ITS APPLICATION TO EXPERIMENTS IN VIVO
- EFFECTS OF LEAD ACETATE ON VARIOUS CHOLINERGIC PARAMETERS OF BRAIN TISSUE IN INFANT AND ADULT MICE IN VITRO
- EFFECTS OF ACUTE AND CHRONIC ADMINISTRATION OF DDVP (DICHLORVOS) ON DISTRIBUTION OF BRAIN ACETYLCHOLINE IN RATS
- EFFECT OF METHYLMERCURY ON BEHAVIORS OF MICE WITH DRUG REFERENCES TO CENTRAL CHOLINERGIC SYSTEM
- EFFECTS OF METHYLMERCURY CHLORIDE ON VARIOUS CHOLINERGIC PARAMETERS IN VlTRO
- EFFECTS OF METHYLMERCURY ON CHOLINERGIC SYSTEM OF BRAIN TISSUE in vivo (The 6th Meeting for the Study of Toxic Effect)
- 219. EFFECTS OF MERCURY COMPOUNDS ON ACETYLCHOLINE CONTENT AND ENZYMES IN BRAIN. (The Third Meeting for the Study of Toxic Effect)
- A High-Speed 6-Bit ADC Using SiGe HBT
- Track/Hold Circuit in GaAs HBT Process (Special Section of Selected Papers from the 9th Karuizawa Workshop on Circuits and Systems)
- Noise-Coupled Image Rejection Architecture of Complex Bandpass ΔΣAD Modulator
- SAR ADC Algorithm with Redundancy and Digital Error Correction
- Sampling Jitter and Finite Aperture Time Effects in Wideband Data Acquisition Systems(Special Section on Analog Circuit Techniques and Related Topics)
- A Second-Order Multibit Complex Bandpass ΔΣAD Modulator with I, Q Dynamic Matching and DWA Algorithm(Analog Circuits and Related SoC Integration Technologies)
- Complex Bandpass ΔΣAD Modulator Architecture without I, Q-Path Crossing Layout(Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
- A Quasi-Coherent Sampling Method for Wideband Data Acquisition(Special Section of Selected Papers from the 14th Workshop on Circuits and Systems in Karuizawa)
- A New Coherent Sampling System with a Triggered Time Interpolation(Special Section of Selected Papers from the 13th Workshop on Circuits and Systems in Karuizawa)
- THE METABOLISM OF TRICHLOROETHYLENE AND ITS METABOLITES IN THE PERFUSED LIVER
- Cross-Noise-Coupled Architecture of Complex Bandpass ΔΣAD Modulator
- Modeling and Parameter Extraction Technique for Uni-Directional HV MOS Devices (Special Section of Selected Papers from the 12th Workshop on Circuit and Systems in Karuizawa)
- High-Voltage MOS Device Modeling with BSIM3v3 SPICE Model (Special Issue on Microelectronic Test Structures)
- Analysis of CMOS ADC Nonlinear Input Capacitance
- Novel Architecture of Feedforward Second-Order Multibit ΔΣAD Modulator
- A Practical Analog BIST Cooperated with an LSI Tester( Analog Circuit Techniques and Related Topics)
- THD Measurement and Compensation for Analog Circuits with Fine CMOS Devices
- Total Harmonic Distortion Measurement System of Electronic Devices up to 100MHz with Remarkable Sensitivity
- Algorithms for Digital Correction of ADC Nonlinearity
- Nurse & Social Worker Collaboration in Psychiatric Care : KJ Method Used to Identify Cross-Professional Issues
- An Analysis of the Psychological Weaning Process of Japanese Undergraduate Students
- A Noise-Shaping Algorithm of Multi-bit DAC Nonlinearities in Complex Bandpass ΔΣAD Modulators(Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
- High-Speed Continuous-Time Subsampling Bandpass ΔΣAD Modulator Architecture Employing Radio Frequency DAC(Selected Papers from the 18th Workshop on Circuits and Systems in Karuizawa)
- Spread-Spectrum Clocking in Switching Regulators for EMI Reduction
- High-Efficiency Charge-Pump Circuits which Use a O.5V_-Step Pumping Method
- High-Efficiency Charge-Pump Circuits with Large Current Output for Mobile Equipment Applications
- Highly-Efficient Low-Voltage-0peration Charge Pump Circuits Using Bootstrapped Gate Transfer Switches (特集 低電圧・低消費電力化アナログ回路技術)
- Reducing Startup-Time Inrush Current in Charge-Pump Circuits(Selected Papers from the 16th Workshop on Circuits and Systems in Karuizawa)
- EFFECTS OF LEAD ACETATE ON BRAIN CHOLINERGIC SYSTEM IN YOUNG AND ADULT MICE IN VITRO
- INFLUENCE OF TRIBUTYLTIN ON CHOLINERGIC ACTIVITIES IN BRAIN TISSUE IN VIVO AND IN VITRO
- SAR ADC Architecture with Digital Error Correction
- SOLID EXCHANGE BETWEEN THE BUBBLE WAKE AND THE EMULSION PHASE IN A GAS-FLUIDISED BED
- Simulation of a Multi-Josephson Junction Single Flux Quantum Switching Device
- Reducing Spurious Output of Balanced Modulators by Dynamic Matching of I, Q Quadrature Paths(AD/DA, Analog Circuit and Device Technologies)
- Acute bouts of low-intensity prolonged exercise do not change leptin sensitivity in hypothalamus of rats
- Input-Dependent Sampling-Time Error Effects Due to Finite Clock Slope in MOS Samplers(Analog Circuit and Device Technologies)
- REVERSIBLE EFFECTS OF MONOTHIOL (D-PENICILLAMINE) AND DITHIOL (DIMERCAPTOSUCCINIC ACID) CHELATING COMPOUNDS ON METHYLMERCURY-INHIBITED CHOLINE ACETYLTRANSFERASE ACTIVITY AND HIGH AFFINITY CHOLINE UPTAKE
- Background Self-Calibration Algorithm for Pipelined ADC Using Split ADC Scheme
- Design for Testability That Reduces Linearity Testing Time of SAR ADCs
- Spatial and Temporal Dynamics of Vision Chips Including Parasitic Inductances and Capacitances (Special Section on Selected Papers from the 11th Workshop on Circuits and Systems in Karuizawa)
- Neuropharmacological effect of methylmercury in mice with special reference to the central cholinergic system.
- BREEDING OF MICE WITH SPONTANEOUS ALVEOLAR FORMATION IN THE MAMMARY GLAND II. RELATIONSHIP BETWEEN THE SPONTANEOUS ALVEOLAR FORMATION AND ESTROUS CYCLE
- Effect of single or chronic injection with a carbamate, propoxur, on the brain cholinergic system and behavior of mice.
- Effects of triethyl lead on various cholinergic parameters in the rat brain in vitro.
- Jetsam descent induced by a single bubble passage in three-dimensional gas-fluidized beds.
- Effects of segregation on fine elutriation from gas-fluidised beds of binary solid mixture.
- A Study of the Exchange Reaction between Water and Surface Hydroxyl Groups on Magnesium Oxide by Means of Infrared Diffuse Reflectance Spectroscopy
- Temperature programmed reduction of copper-silica catalysts prepared by ion exchange method.