Automatic gain control for received signal strength indication

US9685925B1 · kind B1 · utility

Assignee

• Atmel Corporation · US

Inventors

• Werner Blatz · Leingarten, DE
• Michael Sagebiel · Leingarten, DE
• Thomas Janz · Ulm, DE
• Martin Fischer · Gleichen, DE
• Daniel Moser · Magna, US
• Jan Knopf · Heilbronn, DE

Key dates

• Filing date: Mar 4, 2016
• Grant date: Jun 20, 2017
• Expiry date: Mar 4, 2036

Classification

• Technology area (CPC —): General

Abstract

In some implementations, an automatic gain control (AGC) circuit comprises: a pre-divider circuit operable to pre-divide an input signal according to a pre-divider circuit setting and output a pre-divided signal; a pre-amplifier operable to pre-amplify the pre-divided signal and output a pre-amplified signal; a post-divider circuit operable to post-divide the pre-amplified signal according to a post-divider circuit setting; an analog-to-digital converter (ADC) operable to generate a digital data stream from the post-divided signal; logic operable to sample the digital data stream; determine a pre-divider circuit setting and a post-divider circuit setting based on the sampled data stream; set the pre-divider circuit and the post-divider circuit based on the determined settings; and generate a received signal strength value based on the pre-divider circuit setting and the post-divider circuit setting.