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公开(公告)号：US10200077B2
公开(公告)日：2019-02-05
申请号：US15582291
申请日：2017-04-28
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Yi Liu , Anthony James Lobianco , Matthew Sean Read , Hoang Mong Nguyen , Howard E. Chen , Stephane Richard Marie Wloczysiak , William J. Domino , Bipul Agarwal
Abstract: Described herein are radio-frequency (RF) modules that include shielding for improved RF performance. The RF modules including a packaging substrate with a receiving system implemented thereon. The RF module includes a shield implemented to provide RF shielding for at least a portion of the receiving system. The receiving system can include any combination of pre-amplifier or post-amplifier bandpass filters, amplifiers, switching networks, impedance matching components, phase-shifting components, input multiplexers, and output multiplexers. The shielding can include a conductive layer within a conformal shielding on an upper side and side walls of the RF module. The shielding can be an overmold formed over the packaging substrate. The conductive layer can be connected to one or more ground planes. The packaging substrate can include contact features on an underside of the substrate for mounting an underside component.
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公开(公告)号：US10056880B2
公开(公告)日：2018-08-21
申请号：US15678967
申请日：2017-08-16
Applicant: SKYWORKS SOLUTIONS, INC.
Inventor： Joshua Haeseok Cho , Yunyoung Choi , Bipul Agarwal
CPC classification number: H03H11/245 , H03H11/24 , H04M1/0277
Abstract: Apparatus and methods for digital step attenuators are provided herein. In certain configurations, a DSA includes a plurality of DSA stages that can be set in an attenuation mode or in a bypass mode using a plurality of switching circuits. A first switching circuit of the plurality of switching circuits includes a field effect transistor (FET) switch, a gate resistor, one or more gate resistor bypass switches, and a pulse generation circuit. The gate resistor is electrically connected between a switch control input and a gate of the FET switch, and a switch control signal can be provided to the switch control input to turn on or off the FET switch. In response to detecting a rising and/or falling edge of the switch control signal, the pulse generation circuit can control the one or more gate resistor bypass switches to bypass the gate resistor.
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公开(公告)号：US20180183477A1
公开(公告)日：2018-06-28
申请号：US15809231
申请日：2017-11-10
Applicant: Skyworks Solutions, Inc.
Inventor： Junhyung Lee , Bipul Agarwal , Yong Hee Lee , Junwon Heo
Abstract: Aspects of this disclosure relate to reducing insertion loss associated with a bypass path. In an embodiment, an apparatus includes a first switch having at least two throws, a second switch having at least two throws, a bypass path between the first switch and the second switch, and at least one inductor. The at least one inductor is configured to compensate for capacitance associated with the bypass path to cause insertion loss of the bypass path to be reduced.
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44.发明授权公开(公告)号：US09654122B2
公开(公告)日：2017-05-16
申请号：US15239095
申请日：2016-08-17
Applicant: Skyworks Solutions, Inc.
Inventor： Tom Taoufik Bourdi , Thomas Obkircher , Bipul Agarwal , Chandra Mohan
CPC classification number: H03L7/1978 , H03L7/1976 , H03M3/422 , H03M3/436 , H03M7/3022 , H04B1/40 , H04B2001/0491 , H04L7/0331 , H04L27/00 , H04L27/361
Abstract: A fractional-N divider of a frequency synthesizer is driven by a dither-less and seed-less multi-stage noise shaping (MASH) modulator to alleviate fractional spurious tones introduced by the cyclic train of division ratios from delta-sigma modulators. The MASH modulator includes at least two cascaded dither-less delta-sigma modulators where each modulator includes a first feedback loop the generates the modulator feedback signal, a second feedback loop that disrupts fractional spurious tones and a third feedback loop that provides approximately zero static error. The MASH modulator further includes a combining circuit delays at least one code sequence from at least one of the delta-sigma modulators and that combines the code sequence generated by each of the delta-sigma modulators and at least one delayed code sequence.
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45.发明申请VARIABLE FREQUENCY CIRCUIT IN ATTENUATOR AND/OR NEGATIVE VOLTAGE GENERATOR 审中-公开在衰减器和/或负电压发电机中的可变频率电路公开(公告)号：US20160359471A1
公开(公告)日：2016-12-08
申请号：US15238473
申请日：2016-08-16
Applicant: Skyworks Solutions, Inc.
Inventor： Thomas Obkircher , William J. Domino , Bipul Agarwal
CPC classification number: H03H11/24 , H02M3/07 , H03B5/1212 , H03B5/1228 , H03B5/1265 , H03B5/24 , H03B29/00 , H03F3/19 , H03F3/21 , H03F2200/451 , H03K3/012 , H03K3/013 , H03K3/84 , H03L7/18 , H04B1/0475 , H04L25/08 , H04W28/14
Abstract: Apparatus and methods for distributing spurious tones through the frequency domain are disclosed. One such apparatus can include a dithering circuit configured to generate a sequence of numbers that exhibit statistical randomness and a variable frequency circuit configured to adjust a frequency of an output based on the sequence of numbers so as to spread energy of spurious tones in a frequency response of the output to lower a noise floor. In one example, spurious tones can be reduced in a negative voltage generator of a radio frequency (RF) attenuator.
Abstract translation: 公开了通过频域分配杂音的装置和方法。 一种这样的装置可以包括抖动电路，其被配置为产生呈现统计随机性的数字序列，以及可变频率电路，其被配置为基于数字序列来调整输出的频率，以便在频率响应中扩散杂音的能量 的输出以降低本底噪声。 在一个示例中，在射频（RF）衰减器的负电压发生器中可以减少寄生音。
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Patent Agency Ranking
公开(公告)号：US20160118942A1
公开(公告)日：2016-04-28
申请号：US14974615
申请日：2015-12-18
Applicant: Skyworks Solutions, Inc.
Inventor： Hamid R. Amir Firouzkouhi , Bipul Agarwal , Hasan Akyol
CPC classification number: H03F1/0205 , H03F1/3205 , H03F1/3241 , H03F1/3276 , H03F3/193 , H03F3/21 , H03F3/245 , H03F2200/18 , H03F2200/405 , H03F2200/451 , H03F2200/555 , H03F2201/3215 , H03G3/3042 , H04B1/0475 , H04B2001/0425
Abstract: A power amplifier circuit includes an amplifier MOSFET and a predistorter MOSFET. The predistorter MOSFET source and drain are connected together, and the predistorter MOSFET is connected between the gate of the amplifier MOSFET and a second bias voltage signal. This biasing of the predistorter MOSFET causes it to provide a nonlinear capacitance at the gate of the amplifier MOSFET. The combined non-linear capacitances of the amplifier MOSFET and predistorter MOSFET provide predistortion that promotes cancellation of the distortion or nonlinearity contributed by the amplifier MOSFET alone.
Abstract translation: 功率放大器电路包括放大器MOSFET和预失真MOSFET。 预失真器MOSFET源极和漏极连接在一起，并且预失真器MOSFET连接在放大器MOSFET的栅极和第二偏置电压信号之间。 预失真器MOSFET的这种偏置使其在放大器MOSFET的栅极处提供非线性电容。 放大器MOSFET和预失真器MOSFET的组合非线性电容提供预失真，促进单独由放大器MOSFET贡献的失真或非线性的消除。
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公开(公告)号：US20160018838A1
公开(公告)日：2016-01-21
申请号：US14806336
申请日：2015-07-22
Applicant: Skyworks Solutions, Inc.
Inventor： Hasan Akyol , Bipul Agarwal , Dean Badillo
CPC classification number: G05F3/262 , H03F1/301 , H03F3/16 , H03F3/45183 , H03F3/45475 , H03F2200/447 , H03F2203/45528 , H03F2203/45591 , H03F2203/45594 , H03F2203/45646
Abstract: A dB-linear voltage-to-current (V/I) converter is amenable to implementation in CMOS technology. In a representative embodiment, the dB-linear V/I converter has a voltage scaler, a current multiplier, and an exponential current converter serially connected to one another. The voltage scaler supplies an input current to the current multiplier based on an input voltage. The current multiplier multiplies the input current and a current proportional to absolute temperature and supplies the resulting current to the exponential current converter. The exponential current converter has a differential MOSFET pair operating in a sub-threshold mode and generating an output current that is proportional to a temperature-independent, exponential function of the input voltage.
Abstract translation: dB线性电压 - 电流（V / I）转换器适用于CMOS技术中的实现。 在代表性实施例中，dB线性V / I转换器具有彼此串联连接的电压缩放器，电流倍增器和指数电流转换器。 电压定标器基于输入电压向当前倍增器提供输入电流。 电流乘法器将输入电流和与绝对温度成比例的电流相乘，并将所得电流提供给指数电流转换器。 指数电流转换器具有以亚阈值模式工作的差分MOSFET对，并产生与输入电压的与温度无关的指数函数成比例的输出电流。
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公开(公告)号：US20150349749A1
公开(公告)日：2015-12-03
申请号：US14730108
申请日：2015-06-03
Applicant: Skyworks Solutions, Inc.
Inventor： Sandeep Louis D'Souza , Bipul Agarwal
CPC classification number: H04B1/0475 , H03F3/24 , H03H11/1291 , H03H2011/0494 , H04B1/3833 , H04B2001/0408 , H04W52/0261 , Y02D70/00 , Y02D70/1222 , Y02D70/40
Abstract: A programmable-current transmit continuous-time filter (TX-CTF) system can be included in a radio frequency (RF) transmitter. The input of the TX-CTF can receive a baseband transmission signal, and the output of the TX-CTF can be provided to an upconversion mixer for conversion to RF for transmission. The TX-CTF includes amplifier circuitry and passive circuitry that together define the filter parameters. The TX-CTF further includes programmable current circuitry that provides a programmable bias current to the amplifier circuitry. The TX-CTF system also includes control logic that receives one or more transmitter control signals and, in response, generates signals that control the bias current provided to the TX-CTF.
Abstract translation: 可编程电流传输连续时间滤波器（TX-CTF）系统可以包括在射频（RF）发射机中。 TX-CTF的输入可以接收基带传输信号，TX-CTF的输出可以提供给上变频混频器，以转换为RF进行传输。 TX-CTF包括一起定义滤波器参数的放大器电路和无源电路。 TX-CTF还包括可编程电流电路，为放大器电路提供可编程偏置电流。 TX-CTF系统还包括接收一个或多个发射机控制信号的控制逻辑，并且作为响应，产生控制提供给TX-CTF的偏置电流的信号。
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49.发明申请公开(公告)号：US20150326205A1
公开(公告)日：2015-11-12
申请号：US14704291
申请日：2015-05-05
Applicant: Skyworks Solutions, Inc.
Inventor： Joshua Haeseok Cho , Yunyoung Choi , Bipul Agarwal
CPC classification number: H03H11/245 , H03H11/16 , H04L25/03828
Abstract: Apparatus and methods for digital step attenuators are provided herein. In certain configurations, a digital step attenuator (DSA) includes a plurality of DSA stages arranged in a cascade between an input terminal and an output terminal. Each of the DSA stages can be operated in an attenuation mode or in a bypass mode. The DSA further includes an attenuation control circuit, which can be used to control the modes of operation of the DSA stages. The attenuation control circuit can be used to operate the DSA over a plurality of attenuation steps, which can be digitally selectable. To provide low phase shift across the range of attenuation steps, a DSA stage can include one or more phase compensation capacitors used to provide low phase shift and to compensate for a phase difference between the DSA stage operating in the bypass mode and in the attenuation mode.
Abstract translation: 本文提供了用于数字步进衰减器的装置和方法。 在某些配置中，数字步进衰减器（DSA）包括在输入端子和输出端子之间级联布置的多个DSA级。 每个DSA级可以在衰减模式或旁路模式下工作。 DSA还包括一个衰减控制电路，可用于控制DSA级的工作模式。 衰减控制电路可以用于在多个衰减步骤中操作DSA，其可以是数字可选择的。 为了在衰减步骤的范围内提供低相移，DSA级可以包括一个或多个相位补偿电容器，用于提供低相移并补偿在旁路模式和衰减模式下工作的DSA级之间的相位差 。
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公开(公告)号：US09054716B2
公开(公告)日：2015-06-09
申请号：US13887771
申请日：2013-05-06
Applicant: Skyworks Solutions, Inc.
Inventor： Thomas Obkircher , Bipul Agarwal , Wei-Hong Chen
CPC classification number: H04L7/0331 , H03B5/1212 , H03L7/08 , H03L7/0898 , H03L7/093 , H03L7/099 , H03L7/1072 , H03L2207/04
Abstract: Apparatus and methods for adjusting a gain of an electronic oscillator, such as a voltage-controlled oscillator (VCO), are disclosed. In one aspect, an apparatus for compensating for VCO gain variations includes a charge pump controller. The charge pump controller can be configured to select a VCO gain model based on a comparison of a VCO gain indicator and a threshold value stored in a memory, obtain VCO gain model parameters from the memory corresponding to the selected VCO gain model, and compute a charge pump current control value using the VCO gain model parameters. The charge pump current control value can be used to compensate for VCO gain variations.
Abstract translation: 公开了一种用于调节诸如压控振荡器（VCO）的电子振荡器的增益的装置和方法。 在一个方面，用于补偿VCO增益变化的装置包括电荷泵控制器。 电荷泵控制器可以被配置为基于存储在存储器中的VCO增益指示器和阈值的比较来选择VCO增益模型，从对应于所选择的VCO增益模型的存储器获得VCO增益模型参数，并计算 电荷泵电流控制值采用VCO增益模型参数。 电荷泵电流控制值可用于补偿VCO增益变化。
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