公开(公告)号：US20150222301A1

公开(公告)日：2015-08-06

申请号：US14561189

申请日：2014-12-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Aram MARTIROSYAN ,  Jong-Shin SHIN

IPC: H04B1/04 ,  H04B1/40

CPC classification number: H04B1/0475 ,  H03F3/2171 ,  H03F3/245 ,  H03F3/45139 ,  H03F2203/45481 ,  H04B1/40

Abstract: A transmitting circuit includes a positive differential node, a negative differential node, a voltage mode driver, and a current mode driver. The voltage mode driver generates a first positive differential signal and a first negative differential signal. The voltage mode driver provides the first positive differential signal to the positive differential node and provides the first negative differential signal to the negative differential node. The current mode driver generates a second positive differential signal and a second negative differential signal. The current mode driver provides the second positive differential signal to the positive differential node and provides the second negative differential signal to the negative differential node. A differential signal voltage swing width between the positive differential node and the negative differential node is based at least on the operational state of the current mode driver and/or the voltage mode driver.

Abstract translation: 发送电路包括正差分节点，负差分节点，电压模式驱动器和当前模式驱动器。 电压模式驱动器产生第一正差分信号和第一负差分信号。 电压模式驱动器将第一正差分信号提供给正差分节点，并将第一负差分信号提供给负差分节点。 电流模式驱动器产生第二正差分信号和第二负差分信号。 电流模式驱动器向正差分节点提供第二正差分信号，并将第二负差分信号提供给负差分节点。 至少在当前模式驱动器和/或电压模式驱动器的操作状态下，正差动节点和负差动节点之间的差分信号电压摆幅宽度是至关重要的。

公开(公告)号：US20150180414A1

公开(公告)日：2015-06-25

申请号：US14504875

申请日：2014-10-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang-Hun LEE ,  Jong-Shin SHIN

IPC: H03B7/06 ,  H03L7/099 ,  H03L7/089

CPC classification number: H03B7/06 ,  H03B5/1215 ,  H03B5/1225 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1278 ,  H03B5/1287 ,  H03J1/005 ,  H03J2200/10 ,  H03L7/089 ,  H03L7/099

Abstract: A voltage controlled oscillator (VCO) includes an oscillation frequency signal generation circuit and a transconductance control circuit. The oscillation frequency signal generation circuit has a first transconductance and generates a first oscillation frequency signal and a second oscillation frequency signal based on a voltage control signal and a power supply voltage. The first and second oscillation frequency signals are a pair of differential signals. The oscillation frequency signal generation circuit is configured to output the first oscillation frequency signal from a first output node. The oscillation frequency signal generation circuit is configured to output the second oscillation frequency signal from a second output node. The transconductance control circuit is connected to the first and second output nodes and has a second transconductance. The transconductance control circuit is configured to adjust the second transconductance based on a digital control signal.

Abstract translation: 压控振荡器（VCO）包括振荡频率信号发生电路和跨导控制电路。 振荡频率信号发生电路具有第一跨导，并且基于电压控制信号和电源电压产生第一振荡频率信号和第二振荡频率信号。 第一和第二振荡频率信号是一对差分信号。 振荡频率信号发生电路被配置为从第一输出节点输出第一振荡频率信号。 振荡频率信号发生电路被配置为从第二输出节点输出第二振荡频率信号。 跨导控制电路连接到第一和第二输出节点并且具有第二跨导。 跨导控制电路被配置为基于数字控制信号调整第二跨导。