B
Bunyano
- Jan 1, 1970
- 0
Can anyone please help me...I'm building a frequency meter using a
Infineon c167 microcontroller to accept signals in the range of 0.1Hz
- 100Mhz. The brief also states that the peak to peak input voltage
levels vary between 0.1v and 20v. This obviously needs to be stepped
down to 0 - +5v be accepted by the prescaler circuitry and the
microcontroller, but if i simply divide it by 4 say, then then lowest
voltage level would become too small. I also need something that will
not affect the frequecies being passed through and the impedence which
needs to stay high...
I'm just a beginner in this subject and would very much appreciate any
wisdom anyone could give me on this matter...
Thanks
Infineon c167 microcontroller to accept signals in the range of 0.1Hz
- 100Mhz. The brief also states that the peak to peak input voltage
levels vary between 0.1v and 20v. This obviously needs to be stepped
down to 0 - +5v be accepted by the prescaler circuitry and the
microcontroller, but if i simply divide it by 4 say, then then lowest
voltage level would become too small. I also need something that will
not affect the frequecies being passed through and the impedence which
needs to stay high...
I'm just a beginner in this subject and would very much appreciate any
wisdom anyone could give me on this matter...
Thanks