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公开(公告)号：US10763781B2
公开(公告)日：2020-09-01
申请号：US16023001
申请日：2018-06-29
Applicant: SILICON LABORATORIES INC.
Inventor： Thomas Edward Voor , Jeffrey A. Tindle , Euisoo Yoo , Wei Shen
Abstract: A system and method of performing temperature compensation based on temperature of a crystal. An integrated circuit includes a clock circuit, a memory, an interface developing a sense voltage indicative of a temperature of the crystal, and a controller. The memory stores compensation values including nominal values based on a nominal third order polynomial that defines a nominal frequency versus temperature relationship of a crystal design representing multiple crystals, and a pair of adjustment values derived from two temperature-frequency error points. The controller determines a temperature value based on the sense voltage, calculates a frequency offset using the temperature value and the compensation values to solve a compensated third order polynomial defining a compensated frequency versus temperature relationship of the crystal, and adjusts a clock signal of the clock circuit using the frequency offset. A Wi-Fi device may be optimized for industrial IoT operating within an extended temperature range.
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公开(公告)号：US20220399869A1
公开(公告)日：2022-12-15
申请号：US17892492
申请日：2022-08-22
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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公开(公告)号：US11973481B2
公开(公告)日：2024-04-30
申请号：US17537075
申请日：2021-11-29
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
CPC classification number: H03H7/0115 , H03H7/0153 , H04B1/0458 , H04B1/18 , H04B1/40 , H03H2007/013
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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4.发明授权Die-to-die communication links for receiver integrated circuit dies and related methods 有权用于接收器集成电路管芯的模 - 模通信链路和相关方法公开(公告)号：US09252891B2
公开(公告)日：2016-02-02
申请号：US14575391
申请日：2014-12-18
Applicant: Silicon Laboratories Inc.
Inventor： John B. Youngblood , Guner Arslan , J. A. Bolton , Trenton J. Grale , Vitor Pereira , Jeffrey A. Tindle , David S. Trager , Yan Zhou
CPC classification number: H04B15/00
Abstract: Die-to-die communication links for receiver integrated circuit dies within multi-die systems and related methods are disclosed for radio frequency (RF) receivers. The disclosed embodiments provide die-to-die communication links that allow for direct communication of operating parameters between receiver integrated circuit dies and other integrated circuit dies within a multi-die system so that the operation of receive path circuitry can be adjusted without requiring intervention from an external host processor integrated circuit. A variety of operating parameter information can be communicated through the die-to-die communication links so that the integrated circuit dies can quickly adjust to changing signal conditions without requiring intervention by the external host processor integrated circuit.
Abstract translation: 针对射频（RF）接收机公开了用于多芯片系统内的接收机集成电路管芯的模 - 模通信链路和相关方法。 所公开的实施例提供了允许在多管芯系统内的接收器集成电路管芯与其他集成电路管芯之间的操作参数的直接通信的管芯到管芯通信链路，使得可以调整接收路径电路的操作，而无需干预 外部主机处理器集成电路。 可以通过管芯到管芯通信链路传送各种操作参数信息，使得集成电路管芯可以快速地适应不断变化的信号条件，而不需要外部主机处理器集成电路的干预。
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公开(公告)号：US20220085787A1
公开(公告)日：2022-03-17
申请号：US17537075
申请日：2021-11-29
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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Patent Agency Ranking
公开(公告)号：US20210175870A1
公开(公告)日：2021-06-10
申请号：US16706433
申请日：2019-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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公开(公告)号：US11984866B2
公开(公告)日：2024-05-14
申请号：US17892492
申请日：2022-08-22
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
CPC classification number: H03H7/0115 , H03H7/0153 , H04B1/0458 , H04B1/18 , H04B1/40 , H03H2007/013
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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公开(公告)号：US11463064B2
公开(公告)日：2022-10-04
申请号：US16706433
申请日：2019-12-06
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless transceiver including a receiver circuit coupled to an RF transceiver node, a tunable notch filter coupled between the RF transceiver node and a reference node, and a controller that programs the tunable notch filter with a selected blocker frequency and that selectively enables the tunable notch filter to attenuate at least one blocker signal. The tunable notch filter may include a variable capacitor and an inductor coupled in series between the RF transceiver node and ground. The inductor of the tunable notch filter may include a bondwire coupled between a semiconductor die and a semiconductor package. The inductance may include a physical inductor mounted on the package or a printed circuit board. The tunable notch filter may be enabled by a switch selectively coupling the filter to either the RF transceiver node or ground. The variable capacitor may be digitally programmed with digital values stored in a memory.
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9.发明授权公开(公告)号：US11387857B2
公开(公告)日：2022-07-12
申请号：US16998740
申请日：2020-08-20
Applicant: Silicon Laboratories Inc.
Inventor： Arup Mukherji , Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless device including a receiver circuit coupled to a radio frequency receiver node, a frequency selective attenuator including an inductor and a first capacitor coupled in series to the radio frequency receiver node, and a second capacitor coupled in parallel with the first capacitor. The first capacitor has a first capacitance based on a blocker frequency and the second capacitor has a second capacitance that linearizes the frequency selective attenuator. A method of linearizing a frequency selective attenuator including detecting presence of a blocker signal, activating and programming a capacitor of the frequency selective attenuator to reduce a strength of the blocker signal, determining a frequency difference between the blocker signal and a receive frequency, and coupling a second capacitor to the frequency selective attenuator to linearize the frequency selective attenuator when the frequency difference is no more than an attenuation threshold.
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10.发明申请公开(公告)号：US20210175917A1
公开(公告)日：2021-06-10
申请号：US16998740
申请日：2020-08-20
Applicant: Silicon Laboratories Inc.
Inventor： Arup Mukherji , Vitor Pereira , Jeffrey A. Tindle , Mustafa H. Koroglu , Terry Lee Dickey
Abstract: A wireless device including a receiver circuit coupled to a radio frequency receiver node, a frequency selective attenuator including an inductor and a first capacitor coupled in series to the radio frequency receiver node, and a second capacitor coupled in parallel with the first capacitor. The first capacitor has a first capacitance based on a blocker frequency and the second capacitor has a second capacitance that linearizes the frequency selective attenuator. A method of linearizing a frequency selective attenuator including detecting presence of a blocker signal, activating and programming a capacitor of the frequency selective attenuator to reduce a strength of the blocker signal, determining a frequency difference between the blocker signal and a receive frequency, and coupling a second capacitor to the frequency selective attenuator to linearize the frequency selective attenuator when the frequency difference is no more than an attenuation threshold.
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