公开(公告)号：US09385730B2

公开(公告)日：2016-07-05

申请号：US14272975

申请日：2014-05-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junhan Bae ,  Kee-won Kwon ,  Kyoungho Kim ,  Jung Hoon Chun ,  Youngsoo Sohn ,  Seok Kim

IPC: H03L7/087 ,  H03L7/081 ,  H03L7/085 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107

CPC classification number: H03L7/0891 ,  H03D13/004 ,  H03L7/081 ,  H03L7/085 ,  H03L7/087 ,  H03L7/0995 ,  H03L7/104 ,  H03L7/107 ,  H03L7/1072

Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.

Abstract translation: 相位旋转锁相环（PLL）可以包括共享环路滤波器和压控振荡器的第一和第二回路，以便执行相位旋转PLL的操作，第一和第二回路被配置为响应于 一个使能信号。 PLL可以进一步包括相位频率检测控制器，其被配置为响应于作为数字代码应用的粗略信号的转变，向第一和第二环路提供使能信号。

公开(公告)号：US10778205B2

公开(公告)日：2020-09-15

申请号：US16393702

申请日：2019-04-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Ha Kim ,  Jung Hoon Chun ,  Hwaseok Oh

IPC: H03K7/02 ,  H04B14/02 ,  G05F1/575 ,  H04L27/06

Abstract: A transmitter includes: a pulse amplitude modulation encoder that encodes serial data to multi-bit transmission data of a first data group and a second data group; a first driver that converts first multi-bit transmission data of the first data group to a first differential signal having a first voltage swing width; a second driver that converts second multi-bit transmission data of the second data group to a second differential signal having a second voltage swing width narrower than the first voltage swing width; a first voltage regulator that provides to the second driver a first low swing voltage for generating the second differential signal; a second voltage regulator that provides to the second driver a second low swing voltage less than the first low swing voltage; and a constant current load switch that provides a current path between the first and second voltage regulators depending on deactivation of the second driver.

公开(公告)号：US09654118B2

公开(公告)日：2017-05-16

申请号：US15179202

申请日：2016-06-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junhan Bae ,  Kee-Won Kwon ,  Kyungho Kim ,  Jung Hoon Chun ,  Youngsoo Sohn ,  Seok Kim

IPC: H03L7/085 ,  H03D13/00 ,  H03L7/089 ,  H03L7/087 ,  H03L7/081 ,  H03L7/099 ,  H03L7/10 ,  H03L7/107

CPC classification number: H03L7/0891 ,  H03D13/004 ,  H03L7/081 ,  H03L7/085 ,  H03L7/087 ,  H03L7/0995 ,  H03L7/104 ,  H03L7/107 ,  H03L7/1072

Abstract: A phase-rotating phase locked loop (PLL) may include first and second loops that share a loop filter and a voltage controlled oscillator in order to perform the operation of a phase-rotating PLL, the first and second loops configured to activate in response to an enable signal. The PLL may further include a phase frequency detection controller configured to provide the enable signal to the first and second loops in response to a transition of a coarse signal that may be applied as a digital code.

公开(公告)号：US10312896B2

公开(公告)日：2019-06-04

申请号：US15924561

申请日：2018-03-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Ha Kim ,  Jung Hoon Chun ,  Hwaseok Oh

IPC: H04B14/02 ,  H04L27/04 ,  H03K7/02 ,  H03K17/687 ,  G05F1/575 ,  H04L27/06

Abstract: A transmitter includes: a pulse amplitude modulation encoder that encodes serial data to multi-bit transmission data of a first data group and a second data group; a first driver that converts first multi-bit transmission data of the first data group to a first differential signal having a first voltage swing width; a second driver that converts second multi-bit transmission data of the second data group to a second differential signal having a second voltage swing width narrower than the first voltage swing width; a first voltage regulator that provides to the second driver a first low swing voltage for generating the second differential signal; a second voltage regulator that provides to the second driver a second low swing voltage less than the first low swing voltage; and a constant current load switch that provides a current path between the first and second voltage regulators depending on deactivation of the second driver.