公开(公告)号：US20190199347A1

公开(公告)日：2019-06-27

申请号：US16219175

申请日：2018-12-13

Applicant: Integrated Device Technology, Inc.

Inventor： Roberto Aparicio Joo ,  John Zhao

IPC: H03K17/30 ,  H03K17/00 ,  H03K17/693 ,  H03K17/687

CPC classification number: H03K17/302 ,  H03K17/005 ,  H03K17/6872 ,  H03K17/693 ,  H03K2217/0054

Abstract: A method of implementing a radio frequency (RF) switch comprises the steps of forming a first switch device on an integrated circuit substrate, forming a second switch device on the integrated circuit substrate, connecting the first switch device between a first pad and a second pad of the integrated circuit, connecting the second switch device between the second pad and a third pad of the integrated circuit, directly connecting a first control pad of the integrated circuit for receiving a first digital control signal to a control terminal of the first switch device, and directly connecting a second control pad of the integrated circuit for receiving a second digital control signal to a control terminal of the second switch device. A threshold voltage of the first and second switch devices is generally modified to allow being directly driven by the first digital control signal or the second digital control signal.

公开(公告)号：US10312961B1

公开(公告)日：2019-06-04

申请号：US15841692

申请日：2017-12-14

Applicant: Integrated Device Technology, Inc.

Inventor： Victor Korol ,  Roberto Aparicio Joo ,  Naveen Krishna Yanduru

IPC: H04B1/44 ,  H04B7/08

Abstract: An apparatus comprises an input port, an output port, and a resonant receive switch circuit. The resonant receive switch circuit may be coupled between the input port and the output port. The resonant receive switch circuit may comprise a switch and an input matching circuit. When the switch is in a non-conducting state, a signal at the input port is passed to the output port. When the switch is in a conducting state, the signal at the input port is prevented from reaching the output port.

公开(公告)号：US10938355B2

公开(公告)日：2021-03-02

申请号：US16226844

申请日：2018-12-20

Applicant: Integrated Device Technology, Inc.

Inventor： Victor Korol ,  Roberto Aparicio Joo

IPC: H03F1/54 ,  H03F3/189 ,  H03F1/04

Abstract: An apparatus includes an amplifier circuit and a protection circuit. The amplifier circuit may be configured to generate an output signal by amplifying an input signal received at an input port. The input signal may be a radio-frequency signal. The protection circuit may be configured to (i) generate a detection signal by detecting when a level of the input signal exceeds a corresponding threshold, where the level is a power level, a voltage level or both, (ii) route the input signal away from the input port of the amplifier circuit and disable the amplifier circuit both in response to the detection signal being continuously active at least a first time duration and (iii) route the input signal to the input port of the amplifier circuit and enable the amplifier circuit both in response to the detection signal being continuously inactive at least a second time duration.

公开(公告)号：US10686440B2

公开(公告)日：2020-06-16

申请号：US16219175

申请日：2018-12-13

Applicant: Integrated Device Technology, Inc.

Inventor： Roberto Aparicio Joo ,  John Zhao

IPC: H03K17/693 ,  H03K17/30 ,  H03K17/687 ,  H03K17/00

Abstract: A method of implementing a radio frequency (RF) switch comprises the steps of forming a first switch device on an integrated circuit substrate, forming a second switch device on the integrated circuit substrate, connecting the first switch device between a first pad and a second pad of the integrated circuit, connecting the second switch device between the second pad and a third pad of the integrated circuit, directly connecting a first control pad of the integrated circuit for receiving a first digital control signal to a control terminal of the first switch device, and directly connecting a second control pad of the integrated circuit for receiving a second digital control signal to a control terminal of the second switch device. A threshold voltage of the first and second switch devices is generally modified to allow being directly driven by the first digital control signal or the second digital control signal.

公开(公告)号：US10666214B2

公开(公告)日：2020-05-26

申请号：US16105026

申请日：2018-08-20

Applicant: Integrated Device Technology, Inc.

Inventor： Victor Korol ,  Roberto Aparicio Joo

IPC: H03G3/30 ,  H03M1/14 ,  H03F3/72 ,  H03G1/00 ,  H03F3/193 ,  H03F1/08 ,  H03M1/12

Abstract: An apparatus includes an amplifier and a gain control circuit. The amplifier may be configured to provide multiple gain steps. The gain control circuit may be configured to provide fast and precise changes between the multiple gain steps of the amplifier. The gain control circuit may be further configured to change an impedance of the amplifier to switch between the gain steps. The gain control circuit may be further configured to compensate for changes in frequency response related to changing the impedance. The gain control circuit may be further configured to inject a complementary charge to an input of the amplifier to correct a bias voltage deviation and a transient caused by the gain control circuit.

公开(公告)号：US20190068121A1

公开(公告)日：2019-02-28

申请号：US15887013

申请日：2018-02-02

Applicant: Integrated Device Technology, Inc.

Inventor： Victor Korol ,  Roberto Aparicio Joo ,  Mohsin Asif ,  Shawn Bawell

IPC: H03F1/02 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F1/32 ,  H03F1/56 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/211 ,  H03F2200/411 ,  H03F2200/451 ,  H04B1/18 ,  H04B1/38 ,  H04B1/48 ,  H04B2001/0408

Abstract: An apparatus comprises an amplifier having a predefined linear range and a shunt load. The shunt load may be connected to an output, an input, or between gain stages of the amplifier. An impedance of the shunt load dynamically varies in response to a level of a signal presented at a node formed by interconnection of the shunt load and the amplifier, extending linearity of the amplifier beyond the predefined range.