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Publicação
Software Based Sigma-Delta Converter with Auto-Calibration Capabilities
| Nome: | Descrição: | Tamanho: | Formato: | |
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| 1.69 MB | Adobe PDF |
Orientador(es)
Resumo(s)
This paper presents a software based sigma-delta converter. The proposed A/D converter represents a lowcost
and flexible digitalization solution that can be used in a large number of applications. The proposed discrete A/D
converter tasks, that are performed by a microcontroller, include: digital filtering, oversampling, noise shaping and
decimation. A simple implementation of the digital filtering is easily implemented by counting the number of high and low
pulses contained in the feedback bit stream generated by the microcontroller.
The first part of the paper contains an overview of the main characteristics of sigma-delta converters, the second part
includes a brief description of the proposed sigma-delta converter, hardware, software and implementation details, and the
last part will include simulation and experimental results.
Descrição
Trabalho apresentado em 1st IFSA Frequency & Time Conference (IFTC’ 2019), setembro 2019, Tenerife, Espanha
Palavras-chave
Discrete A/D conversion Sigma-delta converter Digital filtering Oversampling Noise shaping Decimation Autocalibration