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公开(公告)号：US20240120882A1
公开(公告)日：2024-04-11
申请号：US18542861
申请日：2023-12-18
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nitin AGARWAL , Aniruddha ROY , Preetham NARAYANA REDDY
IPC: H03B5/20 , H03K3/0231
CPC classification number: H03B5/20 , H03K3/0231 , H03B2200/0014 , H03B2200/0034 , H03B2200/0038
Abstract: In an example, a system includes an oscillator circuit on a chip. The oscillator circuit includes a charging current generator including a current mirror, an amplifier, and an on-chip resistor, where the on-chip resistor is coupled to a pin on the chip. The oscillator circuit also includes oscillator circuitry coupled to the charging current generator, where the oscillator circuitry includes a comparator, a phase generator, a first capacitor coupled to a first resistor, and a second capacitor coupled to a second resistor. The system also includes an external resistor coupled to the pin, where the external resistor is external to the chip. The system includes an external capacitor coupled to the pin, where the external capacitor is external to the chip.
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公开(公告)号：US20230361729A1
公开(公告)日：2023-11-09
申请号：US18355588
申请日：2023-07-20
Applicant: Texas Instruments Incorporated
Inventor： Aniruddha ROY , Kunal Suresh KARANJKAR
IPC: H03F3/20
CPC classification number: H03F3/20
Abstract: Aspects of the description provide for a circuit. In some examples, the circuit includes a input pair of transistors, a bias transistor having a bias transistor gate, a bias transistor drain, and a bias transistor source, the bias transistor drain coupled to the input pair of transistors and the bias transistor source coupled to ground, and a resistor coupled between the bias transistor gate and the input pair of transistors.
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公开(公告)号：US20210250006A1
公开(公告)日：2021-08-12
申请号：US17242971
申请日：2021-04-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aniruddha ROY , Saurabh PANDEY
Abstract: A circuit includes a first transconductance stage having an output. The circuit further includes an output transconductance stage, and a first source-degenerated transistor having a first control input and first and second current terminals. The first control input is coupled to the output of the first transconductance stage. The circuit also includes a second transistor having a second control input and third and fourth current terminals. The third current terminal is coupled to the second current terminal and to the output transconductance stage.
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公开(公告)号：US20220334196A1
公开(公告)日：2022-10-20
申请号：US17509836
申请日：2021-10-25
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aniruddha ROY , Nitin AGARWAL , Preetham NARAYANA REDDY
Abstract: In an example, a system includes an oscillator circuit on a chip. The oscillator circuit includes a charging current generator including a current mirror and an amplifier, where the amplifier is coupled to a pin on the chip, and where the pin is adapted to be coupled to an external resistor, where the external resistor is external to the chip. The oscillator circuit also includes oscillator circuitry coupled to the charging current generator, where the oscillator circuitry includes a comparator, a phase generator, a first capacitor coupled to a first switch, and a second capacitor coupled to a second switch. The oscillator circuit includes leakage circuitry coupled to the current mirror, where the leakage circuitry is configured to draw a current from the current mirror proportional to a leakage current flowing through the external resistor from circuitry internal to the chip.
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公开(公告)号：US20220302906A1
公开(公告)日：2022-09-22
申请号：US17838029
申请日：2022-06-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aniruddha ROY , Nitin AGARWAL , Rajavelu THINAKARAN
Abstract: Trimming components within an oscillator comprising: a trim-capable current source, wherein the trim-capable current source comprises a trimmable resistor and a trimmable current component, a comparator comprising a first input terminal that couples to the trim-capable current source and the second input terminal that couples to a reference voltage source, a switch coupled to the first input terminal and the trim-capable current source, and a trim-capable capacitor coupled to the switch, wherein the switch is coupled between the trim-capable capacitor and the trim-capable current source.
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Patent Agency Ranking
公开(公告)号：US20210344314A1
公开(公告)日：2021-11-04
申请号：US17379046
申请日：2021-07-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nitin AGARWAL , Aniruddha ROY
Abstract: A class AB buffer includes an output stage and an input stage. The output stage includes a first output transistor and a second output transistor. The second output transistor is coupled to the first output transistor. The input stage is coupled to the output stage. The input stage includes a first cascode transistor, a first switch, a second cascode transistor, and a second switch. The first switch is coupled to the first cascode transistor and the first output transistor. The second switch is coupled to the first switch, the second cascode transistor, and the first output transistor.
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公开(公告)号：US20220345086A1
公开(公告)日：2022-10-27
申请号：US17509706
申请日：2021-10-25
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nitin AGARWAL , Aniruddha ROY , Preetham NARAYANA REDDY
IPC: H03B5/20
Abstract: In an example, a system includes an oscillator circuit on a chip. The oscillator circuit includes a charging current generator including a current mirror, an amplifier, and an on-chip resistor, where the on-chip resistor is coupled to a pin on the chip. The oscillator circuit also includes oscillator circuitry coupled to the charging current generator, where the oscillator circuitry includes a comparator, a phase generator, a first capacitor coupled to a first resistor, and a second capacitor coupled to a second resistor. The system also includes an external resistor coupled to the pin, where the external resistor is external to the chip. The system includes an external capacitor coupled to the pin, where the external capacitor is external to the chip.
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公开(公告)号：US20220166393A1
公开(公告)日：2022-05-26
申请号：US17470985
申请日：2021-09-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aniruddha ROY , Kunal Suresh KARANJKAR
IPC: H03F3/20
Abstract: Aspects of the description provide for a circuit. In some examples, the circuit includes a input pair of transistors, a bias transistor having a bias transistor gate, a bias transistor drain, and a bias transistor source, the bias transistor drain coupled to the input pair of transistors and the bias transistor source coupled to ground, and a resistor coupled between the bias transistor gate and the input pair of transistors.
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公开(公告)号：US20200343867A1
公开(公告)日：2020-10-29
申请号：US16395334
申请日：2019-04-26
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Nitin AGARWAL , Aniruddha ROY
Abstract: A class AB buffer includes an output stage and an input stage. The output stage includes a first output transistor and a second output transistor. The second output transistor is coupled to the first output transistor. The input stage is coupled to the output stage. The input stage includes a first cascode transistor, a first switch, a second cascode transistor, and a second switch. The first switch is coupled to the first cascode transistor and the first output transistor. The second switch is coupled to the first switch, the second cascode transistor, and the first output transistor.
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公开(公告)号：US20190199330A1
公开(公告)日：2019-06-27
申请号：US15853015
申请日：2017-12-22
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Aniruddha ROY , Nitin AGARWAL , Rajavelu THINAKARAN
Abstract: Trimming components within an oscillator comprising: a trim-capable current source, wherein the trim-capable current source comprises a trimmable resistor and a trimmable current component, a comparator comprising a first input terminal that couples to the trim-capable current source and the second input terminal that couples to a reference voltage source, a switch coupled to the first input terminal and the trim-capable current source, and a trim-capable capacitor coupled to the switch, wherein the switch is coupled between the trim-capable capacitor and the trim-capable current source.
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