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公开(公告)号：US20240364280A1
公开(公告)日：2024-10-31
申请号：US18765380
申请日：2024-07-08
发明人： Motoji TSUDA
IPC分类号： H03F3/195 , H03F1/26 , H04B1/3827 , H04B1/40
CPC分类号： H03F3/195 , H03F1/26 , H04B1/40 , H03F2200/294 , H03F2200/451 , H04B1/3833
摘要： A radio-frequency module includes a module substrate having major surfaces that are opposite to each other, with the major surface having a recess, a first circuit component at least partially disposed within the recess, a resin member filling the recess and covering at least a portion of the first circuit component, a resin wiring layer covering the recess, and a second circuit component disposed on the resin wiring layer and electrically coupled to the first circuit component. The resin wiring layer includes a wiring portion and a resin portion that has greater strength than the resin member.
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公开(公告)号：US12126309B2
公开(公告)日：2024-10-22
申请号：US16557571
申请日：2019-08-30
发明人： Siraj Akhtar , Swaminathan Sankaran
CPC分类号： H03F1/26 , H03F3/183 , H03H11/28 , H03F1/306 , H03F3/505 , H03F2200/03 , H03F2200/318
摘要： In an example apparatus, a first transistor has a base terminal, a first current terminal and a second current terminal. The base terminal is coupled to an input voltage node. A second transistor has a control terminal, a third current terminal and a fourth current terminal. The third current terminal is coupled to the second current terminal. The fourth current terminal is coupled to a first resistor. A second resistor is coupled to the control terminal. An inductor is coupled between the first resistor and a ground terminal.
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公开(公告)号：US20240305252A1
公开(公告)日：2024-09-12
申请号：US18181321
申请日：2023-03-09
申请人： Analog Devices, Inc.
CPC分类号： H03F3/193 , H03F1/26 , H03F1/565 , H03F3/195 , H03F2200/294 , H03F2200/451
摘要： Apparatus and methods for broadband low noise amplifiers (LNAs) with integrated limiters and fast recovery time are provided. In certain embodiments, an LNA includes a radio frequency (RF) amplification circuit, a feedback resistor connected along a feedback path from an output to an input of the RF amplification circuit, an input limiting circuit connected along an RF signal path between an RF input terminal and the input to the RF amplification circuit, and an input bias circuit that provides an input bias voltage to the input of the RF amplification circuit through the input limiting circuit.
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公开(公告)号：US20240305248A1
公开(公告)日：2024-09-12
申请号：US18583407
申请日：2024-02-21
申请人： Qorvo US, Inc.
CPC分类号： H03F1/26 , H03F1/086 , H03F3/195 , H03F2200/294 , H03F2200/451
摘要： Embodiments of a low noise amplifier (LNA) device and methods of operating the same are disclosed. In some embodiments, the LNA device includes an LNA input node, an LNA amplification core coupled to the LNA input node, and an LNA amplification core that includes LNA amplification segments. Each of the LNA amplification segments are configured to amplify the RF signal and are configured to be activated and deactivated. The LNA amplification core is configured to activate and deactivate the LNA amplification segments in accordance with the LNA core control input. A tunable feedback impedance is coupled between the LNA input node and the LNA amplification core. The tunable feedback impedance has a variable impedance that is set in accordance with the LNA core control input. The LNA amplification segments and the tunable feedback impedance are operated in a manner that optimizes KPIs depending on the input RF signal.
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公开(公告)号：US20240297625A1
公开(公告)日：2024-09-05
申请号：US18177164
申请日：2023-03-02
发明人： Sadia AFROZ , Conor DONOVAN
CPC分类号： H03F3/45192 , H03F1/223 , H03F1/26 , H03F1/565 , H03F2200/451
摘要： A transimpedance-based baseband filter (BBF) including a two-stage operational transconductance amplifier (OTA) having a first stage based on a folded cascode topology, the first stage electrically coupled to a second stage, the second stage having a class AB topology, the first stage having an N-type and P-type transistor pair located between a P-type transistor and an N-type transistor, the N-type and P-type transistor pair configured to provide bias signals to push-pull transistors in the second stage.
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公开(公告)号：US20240291451A1
公开(公告)日：2024-08-29
申请号：US18175785
申请日：2023-02-28
CPC分类号： H03F3/45076 , H03F1/26 , H03F3/211
摘要： In an example, a circuit includes a high side output transistor having a control terminal coupled to a first capacitor, and includes a low side output transistor having a control terminal coupled to a second capacitor and a balancing capacitor. The circuit includes a first differential input stage configured to receive a differential input and provide a first output current to the control terminal of the high side output transistor. The circuit includes a second differential input stage configured to receive the differential input and provide a second output current to the control terminal of the low side output transistor. The circuit includes a floating battery coupled to the control terminal of the high side output transistor and the control terminal of the low side output transistor. The balancing capacitor balances a gate-to-source capacitance of the low side output transistor with a gate-to-source capacitance of the high side output transistor.
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公开(公告)号：US20240275344A1
公开(公告)日：2024-08-15
申请号：US18168782
申请日：2023-02-14
发明人： Alberto Riva , Michele Suraci
CPC分类号： H03F3/45183 , H02M3/1582 , H03F1/086 , H03F1/26 , H03F3/45475
摘要： A transconductance amplifier has a voltage input, a current output, and a control signal. A transconductance of the transconductance amplifier has an inverse relationship with the control signal. In some embodiments, the transconductance of the transconductance amplifier has a reciprocal relationship with the control signal. A switching voltage regulator uses the transconductance amplifier in a current control loop of a current mode switching regulator.
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公开(公告)号：US20240243713A1
公开(公告)日：2024-07-18
申请号：US18154170
申请日：2023-01-13
CPC分类号： H03F3/45475 , H03F1/26 , H03F3/087 , H03F3/45973 , H04B10/6933 , H03F2200/168 , H03F2200/375 , H03F2203/45138
摘要： A circuit structure including: a first amplifier stage having an input, and a second amplifier stage connected to the first amplifier stage. The second amplifier stage has an output. The first amplifier stage and the second amplifier stage carry a signal. A controller is configured to measure and modify at least one operational parameter of the signal. A first offset polarity detector-low pass filter (OPD-LPF) circuit connects the second amplifier stage output to the controller through a first controller input. A second OPD-LPF circuit connects the second amplifier stage to the controller through a second controller input. The controller measures an operational parameter of the signal for offset based on input from the first OPD-LPF circuit and the second OPD-LPF circuit. The controller modifies the operational parameter of the signal to correct signal offset.
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公开(公告)号：US12040755B2
公开(公告)日：2024-07-16
申请号：US17327046
申请日：2021-05-21
发明人： Terumichi Kita
摘要： A radio frequency module includes a substrate having first and second main surfaces; a first filter; third and fourth switches connected to the filter; an amplifier; and/or a matching circuit element connected to the first filter. In various embodiments, the matching circuit element may be on the first main surface while the amplifier may be on the second main surface; the matching circuit element may be on the first main surface while the third switch may be on the second main surface; and/or the filter may be on the first main surface while the fourth switch may be on the second main surface.
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10.发明公开公开(公告)号：US20240235502A1
公开(公告)日：2024-07-11
申请号：US18201198
申请日：2023-05-24
发明人： MINHO PARK
CPC分类号： H03F3/45197 , H03F1/26 , H03F3/45273
摘要： A self-controlled input data buffer circuit includes a first amplifier, a second amplifier, a feedback signal generator, and a gain control unit. The first amplifier includes a first input terminal for receiving a data signal, a second input terminal for receiving a reference signal, a first output terminal, and a second output terminal. The second amplifier is coupled to the first output terminal of the first amplifier and the second output terminal of the first amplifier. The feedback signal generator is coupled to the second amplifier. The gain control unit is coupled to the feedback signal generator, the second input terminal of the first amplifier, the first output terminal of the first amplifier, and the second output terminal of the first amplifier.
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