Results 11 to 20 of about 39,078,878 (240)
All photonic analogue to digital and digital to analogue conversion techniques for digital radio over fibre system applications [PDF]
, 2011 Copyright @ 2011 IEEEWideband electronic analogue to digital conversion (ADC) systems have critical problems encountered in high-frequency broadband communication systems that the recent electronic ADCs (EADC) have experienced those such as uncertainty ...
Mehdi Fakhraie, S +3 more
core +7 more sources
Timing Jitter Analysis and Mitigation in Hybrid OFDM-DFMA PONs
IEEE Photonics Journal, 2021 Hybrid orthogonal frequency division multiplexing-digital filter multiple access passive optical networks (OFDM-DFMA PONs) offer a cost-effective solution to the challenging requirements of next-generation optical access networks and 5G and beyond radio ...
Omaro Fawzi Abdelhamid Gonem +2 more
doaj +1 more source
Reconfiguration based built-in self-test for analogue front-end circuits [PDF]
, 1999 Previous work has shown that it is feasible to implement a fully digital test evaluation function to realise partial self-test on an automatic gain control circuit (AGC).
Lechner, Andreas +2 more
core +4 more sources
Process and temperature robust time‐difference amplifier with analog calibration
The Journal of Engineering, 2022 An analogue calibration CMOS circuit for a time‐difference amplifier is presented and compared over a digital calibration scheme in terms of process and temperature variations.
Uriel A. Melo‐Pinzón +1 more
doaj +1 more source
Low Power, Compact Integrated Photonic Sampler Based on a Silicon Ring Modulator
IEEE Photonics Journal, 2022 Sampling is the primary functional step of an analogue to digital conversion, required for sensing, measurement, signal processing, metrology, and various data communication applications. Here we present, for the first time, to the best of our knowledge,
Mohamed I. Hosni +7 more
doaj +1 more source
An 8‐bit digital‐to‐time converter with pre‐skewing and time interpolation
IET Circuits, Devices and Systems, 2021 This study presents an 8‐bit delay line digital‐to‐time converter (DTC) with pre‐skewing and digital time interpolation. Pre‐skewing that lowers the per‐stage‐delay of delay lines beyond that set by the chosen technology is investigated.
Daniel Junehee Lee +3 more
doaj +1 more source
Electronics Letters, 2023 The fully passive noise shaping (NS) successive approximation register (SAR) analog‐to‐digital converters (ADCs) are simple, operational transconductance amplifier (OTA) free and scaling friendly. Previous passive NS‐SAR ADCs rely on the multi‐path‐input
Xingshuai Zou, Jiaxin Liu, Qiang Li
doaj +1 more source
A 0.002‐mm2 8‐bit 1‐MS/s low‐power time‐based DAC (T‐DAC)
IET Circuits, Devices and Systems, 2021 Digital‐to‐analogue converters (DACs) are essential blocks for interfacing the digital environment with the real world. A novel architecture, using a digital‐to‐time converter (DTC) and a time‐to‐voltage converter (TVC), is employed to form a low‐power ...
Ali H. Hassan +4 more
doaj +1 more source
Accurate Power-Efficient Format-Scalable Multi-Parallel Optical Digital-to-Analogue Conversion
Photonics, 2021 In optical transmitters generating multi-level constellations, optical modulators are preceded by Electronic Digital-to-Analog-Converters (eDAC). It is advantageous to use eDAC-free Optical Analog to Digital Converters (oDAC) to directly convert digital ...
Moshe Nazarathy, Ioannis Tomkos
doaj +1 more source
Digital radio over fibre for future broadband wireless access network solution [PDF]
, 2010 Copyright @ 2010 IEEEDigital systems are more flexible and environment-process-tolerant than analogue systems. They are more reliable and robust against cross-talk, interference and channel noises, and are capable of covering higher dynamic range than ...
Mehdi Fakhraie, S +7 more
core +1 more source