公开(公告)号：US20140329479A1

公开(公告)日：2014-11-06

申请号：US14334473

申请日：2014-07-17

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan

IPC: H03J1/06 ,  H04B1/16

CPC classification number: H03J1/06 ,  H03F3/193 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45306 ,  H03F2203/45704 ,  H03J1/005 ,  H03J1/0066 ,  H04B1/16

Abstract: Apparatus and methods are disclosed related to tuning a resonant frequency of an LC circuit. In some implementations, the LC circuit can be embodied in a low noise amplifier (LNA) of a receiver. The receiver can include a component configured to generate an indicator of received signal strength indication (RSSI) of a radio frequency (RF) signal received by the receiver. A control block can adjust the resonant frequency of the LC circuit based at least in part on the indicator of RSSI. As another example, the receiver can include an oscillator, such as a VCO, separate from the LC circuit that can be used to tune the resonant frequency of the LC circuit. These apparatus can compensate for variation in a zero imaginary component of an impedance across the LC circuit.

Abstract translation: 公开了与调谐LC电路的谐振频率相关的装置和方法。 在一些实现中，LC电路可以实现在接收机的低噪声放大器（LNA）中。 接收机可以包括被配置为生成由接收机接收的射频（RF）信号的接收信号强度指示（RSSI）的指示符的组件。 控制块可以至少部分地基于RSSI的指标来调节LC电路的谐振频率。 作为另一示例，接收机可以包括与可用于调谐LC电路的谐振频率的LC电路分离的诸如VCO的振荡器。 这些装置可以补偿跨越LC电路的阻抗的零虚分量的变化。

公开(公告)号：US12261608B2

公开(公告)日：2025-03-25

申请号：US18247691

申请日：2021-12-07

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan ,  John Kenney

IPC: H03D3/24 ,  H03L1/02 ,  H03L7/099 ,  H03L7/189 ,  H04B1/16

Abstract: Apparatus and methods for control and calibration of external oscillators are provided herein. In certain embodiments, an electronic oscillator system includes a semiconductor die and a controllable oscillator that is external to the semiconductor die. The oscillation frequency of the controllable oscillator is tuned by a first varactor and a second varactor. The semiconductor die includes a phase-locked loop (PLL) that provides fine tuning to the controllable oscillator by controlling the first varactor, and a calibration circuit that provides coarse tuning to the controllable oscillator by controlling the second varactor.

公开(公告)号：US20230412175A1

公开(公告)日：2023-12-21

申请号：US18247691

申请日：2021-12-07

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan ,  John Kenney

IPC: H03L7/099 ,  H03L1/02 ,  H03L7/189 ,  H04B1/16

CPC classification number: H03L7/099 ,  H03L1/02 ,  H03L7/189 ,  H04B1/16 ,  H03L2207/06

Abstract: Apparatus and methods for control and calibration of external oscillators are provided herein. In certain embodiments, an electronic oscillator system includes a semiconductor die and a controllable oscillator that is external to the semiconductor die. The oscillation frequency of the controllable oscillator is tuned by a first varactor and a second varactor. The semiconductor die includes a phase-locked loop (PLL) that provides fine tuning to the controllable oscillator by controlling the first varactor, and a calibration circuit that provides coarse tuning to the controllable oscillator by controlling the second varactor.

公开(公告)号：US20210067184A1

公开(公告)日：2021-03-04

申请号：US17018974

申请日：2020-09-11

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan ,  Saeed Aghtar

IPC: H04B1/10 ,  H04B7/185

Abstract: Aspects of this disclosure relate to a segmented receiver for a wireless communication system. The segmented receiver includes a first receiver segment and a second receiver segment configured to receive respective radio frequency signals. The radio frequency signals can be orthogonally polarized. Branch circuits in each receiver segment can provide a radio frequency signal to different mixers. The different mixers can be included in different receiver segments and receive local oscillator signals from independent local oscillators. Each receiver segment can process a different bandwidth of the radio frequency signal. Two different bandwidths of the radio frequency signal can be processed concurrently by different receiver segments.

公开(公告)号：US10797738B2

公开(公告)日：2020-10-06

申请号：US16172119

申请日：2018-10-26

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan ,  Saeed Aghtar

IPC: H04B1/10 ,  H04B7/185

Abstract: Aspects of this disclosure relate to a segmented receiver for a wireless communication system. The segmented receiver includes a first receiver segment and a second receiver segment configured to receive respective radio frequency signals. The radio frequency signals can be orthogonally polarized. Branch circuits in each receiver segment can provide a radio frequency signal to different mixers. The different mixers can be included in different receiver segments and receive local oscillator signals from independent local oscillators. Each receiver segment can process a different bandwidth of the radio frequency signal. Two different bandwidths of the radio frequency signal can be processed concurrently by different receiver segments.

公开(公告)号：US09608600B2

公开(公告)日：2017-03-28

申请号：US14334473

申请日：2014-07-17

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan

IPC: H03J1/06 ,  H03J1/00 ,  H03F3/193 ,  H03F3/45 ,  H04B1/16

CPC classification number: H03J1/06 ,  H03F3/193 ,  H03F3/45179 ,  H03F2200/294 ,  H03F2203/45306 ,  H03F2203/45704 ,  H03J1/005 ,  H03J1/0066 ,  H04B1/16

Abstract: Apparatus and methods are disclosed related to tuning a resonant frequency of an LC circuit. In some implementations, the LC circuit can be embodied in a low noise amplifier (LNA) of a receiver. The receiver can include a component configured to generate an indicator of received signal strength indication (RSSI) of a radio frequency (RF) signal received by the receiver. A control block can adjust the resonant frequency of the LC circuit based at least in part on the indicator of RSSI. As another example, the receiver can include an oscillator, such as a VCO, separate from the LC circuit that can be used to tune the resonant frequency of the LC circuit. These apparatus can compensate for variation in a zero imaginary component of an impedance across the LC circuit.

公开(公告)号：US09214895B2

公开(公告)日：2015-12-15

申请号：US14202403

申请日：2014-03-10

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan

IPC: H03B5/12

CPC classification number: H03B5/1228 ,  H03B5/1203 ,  H03B5/1215 ,  H03B5/1253 ,  H03B5/1265

Abstract: One aspect of this disclosure is an apparatus including an oscillator that includes a secondary LC circuit to increase a tuning range of the oscillator and/or to reduce a phase noise of the oscillator. Another aspect of this disclosure is an apparatus that includes oscillator with a primary LC circuit and a secondary LC circuit. This oscillator can operate in a primary oscillation mode or a secondary oscillation mode, depending on whether oscillation is set by the primary LC circuit or the secondary LC circuit.

Abstract translation: 本公开的一个方面是包括振荡器的装置，该振荡器包括用于增加振荡器的调谐范围的次级LC电路和/或降低振荡器的相位噪声。 本公开的另一方面是包括具有主LC电路和次级LC电路的振荡器的装置。 该振荡器可以在主振荡模式或次级振荡模式下操作，这取决于主LC电路或次级LC电路是否设置振荡。

公开(公告)号：US08598923B2

公开(公告)日：2013-12-03

申请号：US13625642

申请日：2012-09-24

Applicant: Analog Devices, Inc.

Inventor： Hyman Shanan

IPC: H03K21/00

CPC classification number: H03B19/00 ,  H03K3/356191 ,  H03K21/023 ,  H03K21/10

Abstract: A bias-shaping circuit for adjusting power consumption in a frequency divider to a temperature-dependent minimum includes a temperature-dependent bias source for producing a temperature-dependent bias. The bias is combined with an input signal to create an output bias. The output bias changes in response to a change in temperature to compensate for at least a portion of a temperature-induced change in the frequency divider, thereby adjusting power consumption in the frequency divider to a temperature-dependent minimum.

Abstract translation: 用于将分频器中的功率消耗调节至温度依赖最小值的偏置整形电路包括用于产生温度依赖偏置的温度依赖偏置源。 偏置与输入信号组合以产生输出偏置。 输出偏置响应于温度变化而变化以补偿分频器中温度引起的变化的至少一部分，从而将分频器中的功率消耗调节到依赖于温度的最小值。