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公开(公告)号：US11374555B2
公开(公告)日：2022-06-28
申请号：US17240226
申请日：2021-04-26
Applicant: Silicon Laboratories Inc.
Inventor： Ruifeng Sun , Abdulkerim Coban
Abstract: In one embodiment, a tuning network includes: a controllable capacitance; a first switch coupled between the controllable capacitance and a reference voltage node; a second switch coupled between the controllable capacitance and a third switch; the third switch coupled between the second switch and a second voltage node; a fourth switch coupled between the second voltage node and a first inductor; the first inductor having a first terminal coupled to the fourth switch and a second terminal coupled to at least the second switch; and a second inductor having a first terminal coupled to the second terminal of the first inductor and a second terminal coupled to the controllable capacitance.
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公开(公告)号：US20210328578A1
公开(公告)日：2021-10-21
申请号：US17240226
申请日：2021-04-26
Applicant: Silicon Laboratories Inc.
Inventor： Ruifeng Sun , Abdulkerim Coban
Abstract: In one embodiment, a tuning network includes: a controllable capacitance; a first switch coupled between the controllable capacitance and a reference voltage node; a second switch coupled between the controllable capacitance and a third switch; the third switch coupled between the second switch and a second voltage node; a fourth switch coupled between the second voltage node and a first inductor; the first inductor having a first terminal coupled to the fourth switch and a second terminal coupled to at least the second switch; and a second inductor having a first terminal coupled to the second terminal of the first inductor and a second terminal coupled to the controllable capacitance.
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Patent Agency Ranking
公开(公告)号：US20170110792A1
公开(公告)日：2017-04-20
申请号：US15390434
申请日：2016-12-23
Applicant: Silicon Laboratories Inc.
Inventor： David Le Goff , John M. Khoury , Mustafa Koroglu , Abdulkerim Coban , Ramin Khoini-Poorfard
Abstract: An apparatus includes a first integrated circuit (IC) that includes a first radio-frequency (RF) circuit to process RF signals, a first antenna port to couple to one or more antennas, and a first switch integrated in the first IC and coupled to the first antenna port. The apparatus further includes a second IC that includes a second RF circuit to process RF signals, a second antenna port to couple to the one or more antennas, and a second switch integrated in the second IC and coupled to the second antenna port.
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公开(公告)号：US10033421B2
公开(公告)日：2018-07-24
申请号：US15168318
申请日：2016-05-31
Applicant: Silicon Laboratories Inc.
Inventor： Vitor Pereira , Mustafa Koroglu , Ruifeng Sun , Ramin Khoini-Poorfard , Abdulkerim Coban , Yu Su , Krishna Pentakota
Abstract: In one example, a semiconductor die includes multi-standard, multi-channel expandable television/satellite receiver that can be flexibly implemented in a number of different configurations to enable incorporation into a plurality of different systems. The semiconductor die may include multiple tuners to receive and tune a terrestrial radio frequency (RF) signal and a satellite RF signal. These tuners may include different frequency synthesizers including voltage controlled oscillators (VCOs) to generate VCO signals at different frequencies, mixers to downconvert the RF signals to baseband signals using the VCO signals. In an implementation, the semiconductor die may further include shared circuitry coupled to the tuners to digitize, process and demodulate the baseband signals.
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公开(公告)号：US20170093032A1
公开(公告)日：2017-03-30
申请号：US14869916
申请日：2015-09-29
Applicant: Silicon Laboratories Inc.
Inventor： John M. Khoury , Mustafa Koroglu , Abdulkerim Coban , Ramin Khoini-Poorfard
CPC classification number: H01Q1/50 , H04B1/18 , H04B7/02 , H04B7/0805
Abstract: An apparatus includes an integrated circuit (IC), which includes a radio-frequency (RF) circuit to process RF signals, and a balun that has first and second ports. First and second switches are coupled to the second port of the balun. The first port of the balun is coupled to the RF circuit.
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公开(公告)号：US20240393819A1
公开(公告)日：2024-11-28
申请号：US18202093
申请日：2023-05-25
Applicant: Silicon Laboratories Inc.
Inventor： Abdulkerim Coban
Abstract: A voltage reference circuit can operate in a large supply voltage range, including a low supply voltage, and can operate with high PSRR. The voltage reference circuit supplies a voltage reference with a near zero temperature coefficient (TC) across a wide-temperature range. The voltage reference circuit develops a first current with a positive temperature coefficient from a first transistor and a second current with a negative temperature coefficient from a second transistor. The control terminals of the two transistors are supplied by respective outputs of two error amplifiers. The two currents are combined to develop a voltage reference across a resistor. The voltage reference has a near zero temperature coefficient.
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公开(公告)号：US11025231B1
公开(公告)日：2021-06-01
申请号：US16850215
申请日：2020-04-16
Applicant: Silicon Laboratories Inc.
Inventor： Ruifeng Sun , Abdulkerim Coban
Abstract: In one embodiment, a tuning network includes: a controllable capacitance; a first switch coupled between the controllable capacitance and a reference voltage node; a second switch coupled between the controllable capacitance and a third switch; the third switch coupled between the second switch and a second voltage node; a fourth switch coupled between the second voltage node and a first inductor; the first inductor having a first terminal coupled to the fourth switch and a second terminal coupled to at least the second switch; and a second inductor having a first terminal coupled to the second terminal of the first inductor and a second terminal coupled to the controllable capacitance.
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