Look at the data sheet for the NE544, it should answer all of your=20
questions.

Kerry


YES NOPE9 wrote:
> I have looked around and while I find that digital ( 3 wire ) RC servos c=
ommonly like 4 to 6 volts for power with a nominal value of 4.8 volts......=
=20
> A 1.5 msec pulse is mentioned as required to send the servo to it's neutr=
al position.
>
> I can find no mention of the voltage range for "zero" and "one" values to=
 the control input. I also see no mention of the impedance the control inpu=
t presents.  Is a zero =3D=3D> zero to 2.4 volts ?  Is a one =3D=3D> 2.4 vo=
lts to 4.8 volts ?  Is there hysteresis ?
>
> gus in denver  99gus
>  =20



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