This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
项目主要是应用在SFP+光模块上。由于采用EML激光器,所以涉及到对TEC电流的控制,需要用到2路DAC,再加上激光器的调制电流、偏置电流、EA偏置电流,所以共需要5路DAC。
我也想过用PWM,但是对PWM不是很了解,听说精度会差一些。所以希望专家们帮详细解释一下PWM做DAC的应用情况,及适用范围,谢谢!