公开(公告)号：US20060152393A1

公开(公告)日：2006-07-13

申请号：US11284985

申请日：2005-11-21

申请人： Sandeep Gupta ,  Oleksly Zabroda

发明人： Sandeep Gupta ,  Oleksly Zabroda

IPC分类号： H03M7/00

CPC分类号： G11C27/024 ,  H03M1/1215 ,  H03M1/1245

摘要： A high-speed sampling system and an analog to digital converter are disclosed. One embodiment of a method of sampling a signal includes receiving an analog signal and generating first samples at a rate of Fs, and generating second sub-samples from the first samples at a rate of Fs/N and having a relative phase of approximately (360/N)*(i-1) degrees, where i varies from 1 to N. In a first embodiment, at most two second sub-samplers are tracking the output of the first sampler at any point in time. In a second embodiment, only one of the N second sub-samplers are tracking the output of the first sampler at any point in time. A third embodiment further includes generating third samples from the second samples at a rate of Fs/N, and having a relative phase of approximately ((360/N)*(i-1)+180) degrees. A method of interleaved analog to digital converting includes corresponding time interleaved ADCs receiving the third samples.

摘要翻译： 公开了一种高速采样系统和模数转换器。 对信号进行采样的方法的一个实施例包括接收模拟信号并以F s的速率产生第一采样，并以Fs / N的速率从第一采样产生第二子采样，并具有大约（360 / N）*（i-1）度，其中i从1变化到N.在第一实施例中，至多两个第二子采样器在任何时间点跟踪第一采样器的输出。 在第二实施例中，N个第二子采样器中的仅一个在任何时间点跟踪第一采样器的输出。 第三实施例还包括以Fs / N的速率从第二样本产生第三样本，并且具有近似（（360 / N）*（i-1）+180）度的相对相位。 交错模数转换的方法包括接收第三样本的对应的时间交织ADC。

公开(公告)号：US07132965B2

公开(公告)日：2006-11-07

申请号：US11284985

申请日：2005-11-21

申请人： Sandeep Kumar Gupta ,  Oleksly Zabroda

发明人： Sandeep Kumar Gupta ,  Oleksly Zabroda

IPC分类号： H03M1/00

CPC分类号： G11C27/024 ,  H03M1/1215 ,  H03M1/1245

摘要： A high-speed sampling system and an analog to digital converter are disclosed. One embodiment of a method of sampling a signal includes receiving an analog signal and generating first samples at a rate of Fs, and generating second sub-samples from the first samples at a rate of Fs/N and having a relative phase of approximately (360/N)*(i−1) degrees, where i varies from 1 to N. In a first embodiment, at most two second sub-samplers are tracking the output of the first sampler at any point in time. In a second embodiment, only one of the N second sub-samplers are tracking the output of the first sampler at any point in time. A third embodiment further includes generating third samples from the second samples at a rate of Fs/N, and having a relative phase of approximately ((360/N)*(i−1)+180) degrees. A method of interleaved analog to digital converting includes corresponding time interleaved ADCs receiving the third samples.

摘要翻译： 公开了一种高速采样系统和模数转换器。 对信号进行采样的方法的一个实施例包括接收模拟信号并以F s的速率产生第一采样，并以Fs / N的速率从第一采样产生第二子采样，并具有大约（360 / N）*（i-1）度，其中i从1变化到N.在第一实施例中，至多两个第二子采样器在任何时间点跟踪第一采样器的输出。 在第二实施例中，N个第二子采样器中的仅一个在任何时间点跟踪第一采样器的输出。 第三实施例还包括以Fs / N的速率从第二样本产生第三样本，并且具有近似（（360 / N）*（i-1）+180）度的相对相位。 交错模数转换的方法包括接收第三样本的对应的时间交织ADC。