Wideband 1-Bit Bandpass Delta Sigma Modulator Using Elliptic Filter in Noise Transfer Function
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3196380
Abstract: A 1-bit band-pass delta-sigma modulator (BP-DSM), which utilizes oversampling technology, allows a modulated signal to be directly output by using a high-speed 1-bit digital pulse train, thus realizing miniaturization of transmitters. For 1-bit BP-DSM, the… read more here.
Keywords: noise; bit; delta sigma; filter ... See more keywords
Delta-Sigma Modulator-Embedded Digital Predistortion for 5G Transmitter Linearization
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2022.3184167
Abstract: This article presents two novel digital predistortion (DPD) based architectures that jointly mitigate the inphase/quadrature (IQ) modulator impairments and the power amplifier (PA) nonlinear distortion in wireless transmitters. The proposed architectures are multibit cartesian and… read more here.
Keywords: linearization; digital predistortion; delta sigma; sigma modulator ... See more keywords
Multi-Channel Analog-to-Digital Conversion Using a Delta-Sigma Modulator Without Reset and a Modulated-Sinc-Sum Filter
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2021.3094679
Abstract: A new method is presented for converting any continuously running discrete-time delta-sigma modulator (DTDSM) into a multi-channel ADC by adding only a digital filter at the output. The inputs are multiplexed and fed to the… read more here.
Keywords: multi channel; delta sigma; filter; sigma modulator ... See more keywords
A Delta Sigma Modulator-Based Stochastic Divider
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2022.3168286
Abstract: The divider is one of the most complex hardware units in Stochastic Computing (SC); even though several new designs have been presented to reduce the computation latency of the conventional divider, all of them still… read more here.
Keywords: based stochastic; delta sigma; sigma modulator; stochastic divider ... See more keywords
A 72.4-dB SNDR 92-dB SFDR Blocker Tolerant CT $\Delta\Sigma$ Modulator With Inherent DWA
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems II: Express Briefs"
DOI: 10.1109/tcsii.2018.2852599
Abstract: This brief presents the design and implementation of a new blocker tolerant wideband continuous-time delta-sigma modulator. Using a customized digital integrator with inherent data-weighted averaging at the back-end of the modulator, the power consumption of… read more here.
Keywords: blocker; blocker tolerant; modulator; delta sigma ... See more keywords
A 20-nW 0.25-V Inverter-Based Asynchronous Delta–Sigma Modulator in 130-nm Digital CMOS Process
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Very Large Scale Integration (VLSI) Systems"
DOI: 10.1109/tvlsi.2017.2741343
Abstract: This paper presents a new inverter-based architecture that implements an asynchronous delta–sigma modulator. Different from the classical architecture, it features an input transconductor that promotes a differential and high input impedance that makes it easier… read more here.
Keywords: delta sigma; asynchronous delta; sigma modulator; inverter based ... See more keywords