Hi everyone,
I'm building a (rather complex) digital switching system for my 3 humbucker electric guitar using 4066 chips to control the signal.
As the input to the guitar is grounded (and thus the signal from the pickups) I need to use a positive and negative rail for Vdd and Vss in order to keep the signal from the pickup within the range of the switch right?
Assuming this, I have built a +/- 5v with reference to ground power supply to use on them (I have 10 4066 chips). The signal from the pickups goes +- 1.5v max.
Next (and most important) question: On the 4066, to switch (the switches) on, I raise the control pin to +5v, to turn them off do I need to take the control pin to -5v or will ground work. I say this because the control signal is coming from a cmos 4017 decade counter, which I was hoping to run without using the -5v rail, as the available current on -5v is limited.
OR do I use a pulldown resistor to -5v on the control pins on the 4066 board?
I'm using transistors switched by the decade counter outputs to drive up to 4 switch controls + 1 led at a time.
Any advice would be most appreciated, I can elaborate further if need be
Regards,
Tony
I'm building a (rather complex) digital switching system for my 3 humbucker electric guitar using 4066 chips to control the signal.
As the input to the guitar is grounded (and thus the signal from the pickups) I need to use a positive and negative rail for Vdd and Vss in order to keep the signal from the pickup within the range of the switch right?
Assuming this, I have built a +/- 5v with reference to ground power supply to use on them (I have 10 4066 chips). The signal from the pickups goes +- 1.5v max.
Next (and most important) question: On the 4066, to switch (the switches) on, I raise the control pin to +5v, to turn them off do I need to take the control pin to -5v or will ground work. I say this because the control signal is coming from a cmos 4017 decade counter, which I was hoping to run without using the -5v rail, as the available current on -5v is limited.
OR do I use a pulldown resistor to -5v on the control pins on the 4066 board?
I'm using transistors switched by the decade counter outputs to drive up to 4 switch controls + 1 led at a time.
Any advice would be most appreciated, I can elaborate further if need be
Regards,
Tony