Signal receiver with multi-level sampling

摘要

A signal receiver may comprise a first sampling circuitry that is operable to sample in a first level at a particular main sampling rate; a second sampling circuitry that is operable to sample in a second level, an output of the first sampling circuitry, at a second sampling rate that is reduced compared to the main sampling rate; a third sampling circuitry that is operable to sample in a third level, one or more outputs of the second sampling circuitry, at a third sampling rate that is reduced compared to the second sampling rate; and an analog-to-digital conversion (ADC) circuitry for applying analog-to-digital conversion to one or more outputs of the third sampling circuitry.

主权项

1. A method, comprising:
in an electronic device:
sampling in a first level, at a particular main sampling rate, an input signal;sampling in a second level output of said first level, at a second sampling rate that is reduced compared to said main sampling rate; andprocessing in a third level output of said second level, wherein the processing in said third level comprises:
sampling at a third sampling rate that is reduced compared to said second sampling rate; andapplying analog-to-digital conversion.