Patent ID: 7218181
Filing Date: 2007-05-15
Classification: H03B,H03H,H03J,H03L

Abstract:
1. An amplitude-locked loop (ALL), comprising: a comparator circuit having a first input, a second input and an output, said first input receiving an electric reference signal; a loop filter having an input connected to said output of said comparator circuit and having an output generating an electric control signal; and a circuit to generate an electric signal to be controlled, transmitted to said second input of said comparator circuit, said circuit realizing a linear phase response filter; wherein said circuit includes an acoustic resonator component with a BAW-type resonator having a resonant frequency and an antiresonant frequency, said resonator being associated with a first inductive partner element set in a vicinity of said resonant and antiresonant frequencies and a second capacitive partner element making it possible to adjust said resonant frequency, said resonator component being tuned via said electric control signal.