eetjd
Newbie level 1
Hello everyone! This is my first time posting here, my name is Justin.
I need help replicating a signal on a system I'm currently working on. The line, when idle, sits at +8VDC; when the line is active, the system transmits data on the line by modulating it and creating a very rough sin wave. The voltage swings from about +5.5V to about 9.7V when it's transmitting. The wave has a period of about 8uS so that gives it a frequency of 125k HZ. I've included two pictures of the line when it's active; the data was captured using a logic analyzer that can do analog.
What circuit could I use to replicate this signal? Should I use transistors, OP AMPS or something else? I'll admit I'm somewhat weak in analog circuits, so this is a learning process for me.
Thanks for you time!
![signal_snip.PNG signal_snip.PNG](https://www.edaboard.com/data/attachments/53/53600-a37fcc967ec71042f651f5351811fcd2.jpg)
![signal_snip2.PNG signal_snip2.PNG](https://www.edaboard.com/data/attachments/53/53601-f58846ea3d93b280cc0a39bf85bd17d6.jpg)
I need help replicating a signal on a system I'm currently working on. The line, when idle, sits at +8VDC; when the line is active, the system transmits data on the line by modulating it and creating a very rough sin wave. The voltage swings from about +5.5V to about 9.7V when it's transmitting. The wave has a period of about 8uS so that gives it a frequency of 125k HZ. I've included two pictures of the line when it's active; the data was captured using a logic analyzer that can do analog.
What circuit could I use to replicate this signal? Should I use transistors, OP AMPS or something else? I'll admit I'm somewhat weak in analog circuits, so this is a learning process for me.
Thanks for you time!
![signal_snip.PNG signal_snip.PNG](https://www.edaboard.com/data/attachments/53/53600-a37fcc967ec71042f651f5351811fcd2.jpg)
![signal_snip2.PNG signal_snip2.PNG](https://www.edaboard.com/data/attachments/53/53601-f58846ea3d93b280cc0a39bf85bd17d6.jpg)