Clock generation circuit used in analog-to-digital converter (ADC) with high speed and high precision
A clock generation circuit, analog-to-digital converter technology, applied in the direction of analog conversion, code conversion, electrical components, etc., can solve the problems of interference signal sampling, precision reduction, etc., to achieve the effect of improving precision and avoiding increased requirements
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[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0045] Figure 7 The block diagram of the high-speed ADC clock generation circuit provided by the embodiment of the present invention. Such as Figure 7 As shown, the entire ADC circuit is composed of a sample-and-hold circuit 6 , a quantizer 4 , and a clock generation circuit 5 . The sample and hold circuit 6 performs tracking sampling and holding on the analog input Vi to obtain the held voltage Vh, and the quantizer 4 performs quantization conversion on the voltage Vh to obtain the A / D conversion digital output Do. The clock generation circuit 5 is the core control module of the high-speed ADC, which provides the required control clock for the sample-and-hold circuit 6 and the quantizer 4 . The clock generation circuit 5 includes: a low-nois...
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