First things first, all I know is learned by myself by reading and trial and error. So if you see something obvious please do mention.
My goal is to design a simpele and low cost (>=€50,-) 25Mhz reference with bias-t and 3x 10Mhz sin out.
The valeus of the parts in the schematic need to be revised/calculated and I have to note that they are indicative only.
As writing software is not my strong point, I’m looking for a solution to “fix” the settings in the neo-7M module. Right now I planned a Attiny45 on the PCB and hope to find someone that can help me out with the software. Writing software in the uC is no problem as I have done that numerous times. Writing software myself, well I can make a LED blink but thats it.
So if any can make suggestion?
Can someone revise my schematic, confirm it is correct or if not make suggestions?
Any additional suggestions are welcome.
Thnx in advance