走马观花

Dual MIC circuit + 4th order 5KHz low-pass filter to eliminate environmental background noise

Overview

Dual MIC circuit + 4th-order 5KHz low-pass filter to eliminate environmental background noise. The MIC circuit uses LMC660 equipped with AD623; the 4th-order 5KHz low-pass filter is composed of LMC660; it can be used in robot voice interaction and other aspects.

Design Files

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Update:2025-06-24 04:30:15

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