公开(公告)号：US08754673B1

公开(公告)日：2014-06-17

申请号：US13936900

申请日：2013-07-08

Applicant: Integrated Device Technology, Inc.

Inventor： Wei Wang ,  Yumin Zhang

IPC: H03K5/22

CPC classification number: H03K5/2481

Abstract: An integrated circuit device includes a reference voltage generator, which is configured to generate an adaptive reference voltage (Vref) that varies inversely relative to changes in magnitude of a data signal (DATA) received at an input thereof. This reference voltage generator includes a totem pole arrangement of at least two variable impedance elements having control terminals capacitively coupled (by respective capacitors) to the input. A current mirror is electrically coupled to the totem pole arrangement of at least two variable impedance elements. A comparator is also included. The comparator has a first input terminal that receives the adaptive reference voltage and a second input terminal that receives the data signal.

Abstract translation: 集成电路装置包括参考电压发生器，其被配置为产生相对于在其输入处接收的数据信号（DATA）的幅度变化而相反变化的自适应参考电压（Vref）。 该参考电压发生器包括具有至少两个可变阻抗元件的图腾柱布置，该可变阻抗元件具有与输入电容耦合（通过相应的电容器）的控制端。 电流镜电耦合到至少两个可变阻抗元件的图腾柱布置。 还包括一个比较器。 比较器具有接收自适应参考电压的第一输入端子和接收数据信号的第二输入端子。