公开(公告)号：US20120062302A1

公开(公告)日：2012-03-15

申请号：US12879666

申请日：2010-09-10

申请人： ANTHONY ESTRADA

发明人： ANTHONY ESTRADA

IPC分类号： G06F1/04

CPC分类号： G06F1/04 ,  H03M1/002 ,  H03M1/0626 ,  H03M1/1255

摘要： A system and method for clocking in analog-to-digital (ADC) converter in a synthetic instrument unit is presented. A method begins by applying an input clock to an amplifier to produce an amplified clock. The amplified clock is filtered to produce a filtered clock. The ADC of this synthetic instrument unit is clocked with the filtered clock. The input frequency of the ADC corresponds to a second or higher order Nyquist zone that is above the sampling frequency of the ADC. The input data is carried by an intermediate frequency (IF) signal. The filtered clock of ADC is switched off a clock path of the ADC when the ADC is not in use.

摘要翻译： 提出了一种用于在合成仪器单元中对模数（ADC）转换器进行计时的系统和方法。 一种方法是通过向放大器施加输入时钟以产生放大的时钟。 放大的时钟被滤波以产生滤波时钟。 该合成仪器单元的ADC由滤波时钟计时。 ADC的输入频率对应于高于ADC采样频率的第二或更高阶奈奎​​斯特区。 输入数据由中频（IF）信号承载。 当ADC不使用时，ADC的滤波时钟将关闭ADC的时钟路径。