Dynamically configurable analog frontend circuitry

摘要

An analog frontend (AFE) interface is dynamically programmable. A single AFE circuit can interface with multiple different analog devices, and dynamically configure its input for efficient interfacing with each different analog device. The AFE receives multiple unprocessed analog input signals and samples the analog input signals. A preprocessor element in the AFE analyzes the input signals and generates control signals based on the analyzing. The control signals dynamically adjust how the AFE samples the analog input signals, and can improve the efficiency of the operation the AFE.

主权项

1. A method for interfacing a digital processor with multiple analog devices, comprising:
sampling data from multiple sensors of different types that provide analog sensor data at a dynamically configurable frontend circuit, the frontend circuit including analog interface components to interface with the multiple sensors, and a preprocessor; component, the sampling to obtain unprocessed analog input signals from the multiple sensors; analyzing the sampled analog input signals with the preprocessor component including determining a quality of the analog input signals for the multiple sensors; and sending control signals from the preprocessor component to the analog interface components based on the analyzing by the preprocessor component to dynamically adjust a configuration of the frontend circuit, including dynamically reconfiguring the frontend circuit with different configuration settings to interface with sensors of different types.