US 12,224,708 B2
Multi-phase oscillators
Bichoy Bahr, Allen, TX (US); Michael Henderson Perrott, Nashua, NH (US); Baher Haroun, 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. 30, 2021, as Appl. No. 17/389,935.
Prior Publication US 2023/0035350 A1, Feb. 2, 2023
Int. Cl. H03B 5/32 (2006.01); G06F 1/04 (2006.01)
CPC H03B 5/326 (2013.01) [G06F 1/04 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An oscillator circuit, comprising:
a first bulk acoustic wave (BAW) oscillator circuit having first oscillator terminals and a first control terminal; and
a second BAW oscillator circuit having second oscillator terminals and a second control terminal, in which the first oscillator terminals are coupled to the second oscillator terminals;
a phase detector having a first detector input, a second detector input, and a detector output, the first detector input coupled to one of the first oscillator terminals, and the second detector input coupled to one of the second oscillator terminals; and
a low-pass filter coupled between the detector output and one of the first control terminal of the first BAW oscillator or the second control terminal of the second BAW oscillator.