公开(公告)号：US20200212854A1

公开(公告)日：2020-07-02

申请号：US16232494

申请日：2018-12-26

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Miaad SEYED ALIROTEH ,  Nirmal C. WARKE ,  David P. MAGEE ,  Ali KIAEI ,  Baher S. HAROUN ,  Ajay SINGHVI

IPC: H03F3/195 ,  G01S17/10 ,  G01S7/481

Abstract: A sensor circuit includes a sensor array. The sensor array includes a sensor row that includes a first sensor cell, a second sensor cell, and an output stage of a distributed amplifier circuit. The first sensor cell includes a first photodetector, and a first preamplifier stage of the distributed amplifier circuit. The first preamplifier stage is coupled to the first photodetector, and is configured to amplify a signal received from the first photodetector. The second sensor cell includes a second photodetector, and a second preamplifier stage of the distributed amplifier circuit. The second preamplifier stage is coupled to the second photodetector, and is configured to amplify a signal received from the second photodetector. The output stage of the distributed amplifier circuit is coupled to the first and second sensor cells, and is configured to amplify a signal received from the first preamplifier stage and the second preamplifier stage.

公开(公告)号：US20200076366A1

公开(公告)日：2020-03-05

申请号：US16114708

申请日：2018-08-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bichoy BAHR ,  Baher HAROUN ,  Ting-Ta YEN ,  Ali KIAEI

IPC: H03B5/32 ,  H03H9/17 ,  H01L41/047 ,  H01L41/08

Abstract: A system includes a tunable bulk acoustic wave (BAW) resonator device and a direct-current (DC) tuning controller coupled to the tunable BAW resonator device. The system also includes an oscillator circuit coupled to the tunable BAW resonator device. The DC tuning controller selectively adjusts a DC tuning signal applied to the tunable BAW resonator device to adjust a signal frequency generated by the oscillator circuit.