Digitally controlled attenuators with low phase shift
AssigneeSkyworks Solutions, Inc.
InventorsJoshua Haeseok Cho, Yunyoung Choi, Bipul Agarwal
Life of this patent
Estimating the term…
Loading patent…
AssigneeSkyworks Solutions, Inc.
InventorsJoshua Haeseok Cho, Yunyoung Choi, Bipul Agarwal
Estimating the term…
Digitally controlled attenuators with low phase shift are provided herein. In certain configurations, a digitally controlled attenuator includes an attenuation circuit electrically connected between an input terminal and an output terminal, a bypass circuit electrically connected in parallel with the attenuation circuit between the input terminal and the output terminal, and a plurality of phase compensation capacitors including a first phase compensation capacitor and a second phase compensation capacitor electrically connected in series between the input terminal and the output terminal. The bypass circuit is configured to receive a mode control signal for selecting the bypass circuit to control an amount of attenuation between the input terminal and the output terminal. Additionally, the phase compensation capacitors are operable to compensate for a phase difference between a first signal path through the attenuation circuit and a second signal path through the bypass circuit.
A digitally controlled attenuator comprising:
A front-end module comprising:
A wireless device comprising:
Dependencies are inferred from the claim text.