Adaptive high-order digital-to-analog conversion
A model and parameter technology, applied in the field of electronics, can solve the problems of complex analog circuits, increasing the complexity and cost of electronic devices, etc.
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[0022] Figure 1A A block diagram of an apparatus 100 that performs digital-to-analog conversion in a conventional manner is shown. Within device 100, digital circuitry 110 receives and processes digital data and provides a digital input signal d(n), where n is a sample index. DAC 120 converts the digital input signal from digital to analog using zero-order hold and provides an analog input signal where t is a continuous time variable. A reconstruction filter 130 filters the analog input signal and provides an analog output signal The filter 130 may perform various functions such as image attenuation caused by digital-to-analog conversion, compensation for frequency response degradation due to zero-order hold, and the like.
[0023] Figure 1B exhibit Figure 1A The digital input signal d(n) and the analog input signal in timing diagram. The digital input signal at discrete time n 1 , n 2 etc. contain numeric values. DAC 120 generates an analog input signal by outpu...
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