I am currently connecting a circuit where I power the astable 555 via the monostable 555, but my astable seems to be giving a constant 3.5V even when the monostable is not activate. It works on multisim but doesnt work wheni connect it Can someone help? Thank you!
If you are attempting to make a gated burst oscillator, which will drive your counters downstream, I would do *independent of each other* astable and monostable circuits, and combine their outputs with an AND gate.
Have you tried connecting the top of R2 directy to +5 volts ? If it is a standard 555 (Not the CMOS version ) a 5 volt supply is close to it's minimum voltage rating of 4.5 volts it may not work at your designed operating frequency (48 Khz.)
If you are attempting to make a gated burst oscillator, which will drive your counters downstream, I would do *independent of each other* astable and monostable circuits, and combine their outputs with an AND gate.