Invention Grant
- Patent Title: Variable gain amplifier system including separate bandwidth control based on inductance contribution
-
Application No.: US17887806Application Date: 2022-08-15
-
Publication No.: US11750162B1Publication Date: 2023-09-05
- Inventor: Sagar Ray , Jeffrey Wang , Karthik Raviprakash
- Applicant: Marvell Asia Pte Ltd.
- Applicant Address: SG Singapore
- Assignee: Marvell Asia Pte Ltd.
- Current Assignee: Marvell Asia Pte Ltd.
- Current Assignee Address: SG Singapore
- Main IPC: H03F3/45
- IPC: H03F3/45 ; H03G1/00 ; H03F3/72

Abstract:
A variable gain amplifier system includes a variable gain amplifier circuit configured to receive an input signal, apply a gain to the input signal, and generate an output signal in accordance with the gain applied to the input signal. The variable gain amplifier circuit is further configured to receive a gain control signal and a bandwidth control signal. A control module is configured to generate the gain control signal to adjust the gain of the variable gain amplifier circuit and generate, separately from the gain control signal, the bandwidth control signal to adjust a bandwidth of the variable gain amplifier circuit by selectively varying an amount of inductance contributed by an inductor circuit of the variable gain amplifier circuit.
Information query