US 11,984,850 B2
Oscillator with active inductor
Udit Rawat, West Lafayette, IN (US); Bichoy Bahr, Allen, TX (US); and Swaminathan Sankaran, Allen, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Jul. 28, 2022, as Appl. No. 17/876,008.
Prior Publication US 2024/0039475 A1, Feb. 1, 2024
Int. Cl. H03B 5/24 (2006.01); G01S 13/88 (2006.01); H03H 9/02 (2006.01)
CPC H03B 5/24 (2013.01) [G01S 13/88 (2013.01); H03H 9/02007 (2013.01)] 23 Claims
OG exemplary drawing
 
1. An oscillator circuit, comprising:
a bulk acoustic wave (BAW) resonator including a first resonator terminal and a second resonator terminal, the BAW resonator having a resonant frequency at or above 1 gigaHertz (GHz);
a first active inductor circuit coupled between the first resonator terminal and a power supply terminal, the first active inductor circuit configured to bias the BAW resonator and having a first impedance that reduces with a first frequency where the first frequency is at or above 1 GHz; and
a second active inductor circuit coupled between the second resonator terminal and the power supply terminal, the second active inductor circuit configured to bias the BAW resonator and having a second impedance that reduces with a second frequency where the second frequency is at or above 1 GHz.