Re: Voltage Regulator to IC
- From: PeteS <peter.smith8380@xxxxxxxxxxxx>
- Date: Sat, 28 Oct 2006 22:34:42 GMT
John Fields wrote:
On Sat, 28 Oct 2006 20:53:35 +0100, Eeyore
<rabbitsfriendsandrelations@xxxxxxxxxxx> wrote:
Digitmode@xxxxxxxxx wrote:
If I am using a voltage regulator to bring a voltage down from 9 to 5
volts should I still put a capacitor before a TTL IC to smooth out the
current?
It's not really to 'smooth out the current' so much as to provide a low
impedance path for switching currents.
You don't really need one on *every* IC though. Just make sure each chip is near
to a decoupling cap.
---
Put one on _every_ IC, and as close to the IC as you can unless you
have some overriding reason not to and you know what you're doing.
Decoupling caps are cheap. Trying to find out why your circuit
doesn't work because you followed Graham's advice isn't.
Although I generally agree with the rule of putting a cap per device unless there's some reason not to, this crap between you two is getting old. Get a fucking room and duke it out or something.
I personally don't give a rats ass what your (or whose) problem is, but it gets in the way of serious discussions. On those threads where there is no serious discussion, no big deal. On those threads where there is, both of you have something to contribute but poison it with this crap. I'd like to think both of you are adults. If one of you raises above the fray, then at least I can simply plonk the other.
Cheers
PeteS
.
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