The EFM32PG22 Dev Kit has two microphone SPK0641HT4H-1 sensors on board. The main parameters are as follows:Data sheet attachedThe microphone schematic is as follows:Turn on the microphoneEnable micro...
[i=s] This post was last edited by ena on 2018-12-28 21:49 [/i] This is a voltage acquisition circuit composed of LM258. I copied it from someone else's board, but I don't understand the principle of ...
South Korea launches wireless platform based on TD standard and successfully passes the test -------------------------------------------------------------------------------- http://www.sina.com.cn Jul...