Hi Guys
Im in the middle of doing an NAND gate oscillator tutorial and, as usual, im stuck on the maths. Could somebody help me with the frequency calculation please?
C2 = .1uf
R4 = 2 megohms
Is it the same as the 555 astable calculation?
1.44/ ((200000000) x .1x106) = 7.2 hertz
The book is using
C2 = .1uf
R4 = 2.2 megohms, and suggests I should be seeing around 1Hz
When I tried 1.44/ ((200000000) x 01x106) = 0.72 hertz
This seems closer but, Im not sure.
Kind Regards
Shaun
Im in the middle of doing an NAND gate oscillator tutorial and, as usual, im stuck on the maths. Could somebody help me with the frequency calculation please?
C2 = .1uf
R4 = 2 megohms
Is it the same as the 555 astable calculation?
1.44/ ((200000000) x .1x106) = 7.2 hertz
The book is using
C2 = .1uf
R4 = 2.2 megohms, and suggests I should be seeing around 1Hz
When I tried 1.44/ ((200000000) x 01x106) = 0.72 hertz
This seems closer but, Im not sure.
Kind Regards
Shaun
Attachments

16.6 KB Views: 733