公开(公告)号：US20150381150A1

公开(公告)日：2015-12-31

申请号：US14336979

申请日：2014-07-21

Applicant: BROADCOM CORPORATION

Inventor： Afshin MOMTAZ ,  Adesh GARG

IPC: H03K3/012

CPC classification number: H03K3/012 ,  H03K19/017545 ,  H04L25/0278 ,  H04L25/028 ,  H04L25/0282

Abstract: An apparatus for driving a load using a low supply voltage includes a voltage-mode driver and a current source arrangement. The voltage-mode driver provides a desired termination impedance and a first portion of a desired output current to the load. The current source arrangement provides a second portion of the desired output current. The desired output current generates a predetermined voltage swing across the load, while the voltage-mode driver and the current source arrangement are powered by the low supply voltage.

Abstract translation: 使用低电源电压驱动负载的装置包括电压模式驱动器和电流源装置。 电压模式驱动器提供期望的终端阻抗和期望的输出电流的第一部分到负载。 电流源装置提供期望输出电流的第二部分。 期望的输出电流在负载上产生预定的电压摆幅，而电压模式驱动器和电流源装置由低电源电压供电。