Jackson IPG PLLC
Analog-to-digital converter with adjustable operation frequency for noise reduction
Disclosed is an analog-to-digital converter with an adjustable operation frequency for noise reduction. The operation frequency of the analog-to-digital converter is adjustable, and if an input signal or a circuit is affected by a noise, the noise can be reduced by spreading the frequency distribution of the noise. A clock generator generates a clock signal for controlling the operation frequency of the analog-to-digital converter. Additionally, a clock controller receives a setting signal and a counting signal, controls the clock generator, and adjusts the frequency of the clock signal. In addition, a counter counts the number of periods of the clock signal, and generates the counting signal. Furthermore, a selecting signal makes the frequency of the clock signal gradually increase or decrease with time, thereby allowing change rate or change amount of the frequency of the clock signal to be adjustable.
HYCON TECHNOLOGY CORP
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Po-Yin Shui-Chu Hung-Wei
Chao Lee Chen