基于WAS4732D模拟开关的耳机识别方案

摘要

为了实现对不同耳机检测的需求，提出了一种基于WAS4732D模拟开关的耳机自动识别设计方案，并完成系统的软硬件设计。该方案的硬件部分主要用来实现语音信号通信和检测，软件部分实现相关逻辑状态判断，能够完成对不同标准耳机的识别。实际应用表明，该方案具有成本较低，逻辑控制简单、芯片小封装设计等特点，达到了耳机自识别设计要求。%In order to achieve the different headset detection, this paper proposes a headset automatically identify design solution based on WAS4732D analog switch, and completes the hardware and software design of the system. Hardware part of the scheme is mainly used to realize audio communication and speech signal detection, the software part for relevant logic state judge, able to complete the recognition of different standard headphones. Actual application shows that the scheme has a lower cost, simple logic control, small packaging design, etc, has reached the headset to identify the design requirements.