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公开(公告)号：US20200212879A1
公开(公告)日：2020-07-02
申请号：US16235512
申请日：2018-12-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： BICHOY BAHR , BAHER S. HAROUN , BENJAMIN STASSEN COOK
Abstract: A pressure sensor apparatus is disclosed. The pressure sensor apparatus includes a bulk acoustic wave (BAW) die having a die interface side and a pressure contact side, a sensor BAW resonator and a reference BAW resonator disposed on the die interface side of the BAW die, a control circuit die coupled to the die interface side of the BAW die via an attachment layer, and an extended opening on the pressure contact side that extends into a depth of the BAW die and is generally aligned with the sensor BAW resonator, the extended opening being configured to translate an external pressure on the pressure contact side onto the sensor BAW resonator.
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2.发明申请公开(公告)号：US20240421825A1
公开(公告)日：2024-12-19
申请号：US18821218
申请日：2024-08-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： BICHOY BAHR , YOGESH RAMADASS
Abstract: In one example, an apparatus comprises an oscillator having a control input and a clock output. The apparatus also comprises a frequency control circuit having an input and a control output, the control output coupled to the control input, and a reference clock generator having a reference clock output. The apparatus also comprises a multiplexer having a first multiplexer input, a second multiplexer input, a selection input, and a multiplexer output, the first multiplexer input coupled to the clock output, the second multiplexer input coupled to the reference clock output, and the multiplexer output coupled to the input of the frequency control circuit.
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3.发明公开公开(公告)号：US20240113717A1
公开(公告)日：2024-04-04
申请号：US17936505
申请日：2022-09-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： BICHOY BAHR , YOGESH RAMADASS
CPC classification number: H03L7/0995 , H03B5/326 , H03H9/02244 , H03K3/0231 , H03L7/085 , H03M1/46
Abstract: A clock circuit includes a voltage-controlled oscillator (VCO) having a control input and a first clock output. The clock circuit includes a frequency-locked loop (FLL) having an FLL input and a control output, the control output coupled to the control input. A microelectromechanical system (MEMS) resonator-based oscillator has a second clock output. A multiplexer has a first multiplexer input, a second multiplexer input, a selection input, and a multiplexer output. The first multiplexer input is coupled to the first clock output. The second multiplexer input is coupled to the second clock output. The multiplexer output is coupled to the FLL input.
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