Hi All, I tried to use MC14538BDG to create the pulse and delay. The data sheet and schematic are attached below
https://www.onsemi.com/pdf/datasheet/mc14538b-d.pdf
The S0 is rectangular wave. But after the board is made. The inputs are fine. T1A is LOW, T2A is high, CDA is high, and AA_input is rectangular wave. But there is no output. The QA_out is low and /QA_out is high.
Thanks and any help is greatly appreciated!
https://www.onsemi.com/pdf/datasheet/mc14538b-d.pdf
The S0 is rectangular wave. But after the board is made. The inputs are fine. T1A is LOW, T2A is high, CDA is high, and AA_input is rectangular wave. But there is no output. The QA_out is low and /QA_out is high.
Thanks and any help is greatly appreciated!