麻烦TI的工程师给我推荐一款芯片:将5V供电500线的增量式编码器输出的A/A- B/B- I/I-三路差分信号,转换为3路3.3V TTL信号,这个TTL信号用来输入MCU处理。
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Kailyn Chen 说:这三路差分信号是什么电平标准的呢?
差分信号各路输出电平都是0和5V
0~5V差分信号,2.5V共模电压? 那可以考虑使用差分运放来实现。