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The high-accuracy Analog-to-Digital Converter (ADC) has been widely utilized in various products such as digital audio systems. The ΔΣ modulator is an important component for constituting such products, and its evaluation is an important process in product design. However, the general evaluating method has problems in terms of equipment and design costs. For this reason, a low-cost evaluation method...
In digital audio systems, the ΔΣ modulator has been widely utilized as a digital-to-analog converter (DAC) for Class-D amplifiers and as an analog-to-digital converter (ADC). To evaluate the ΔΣ modulator, generally, a high-accuracy analog signal generator and some expensive band-pass filters are required. For this reason, a low-cost evaluation method using a 1-bit stream is proposed [1]; however,...
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