Re: LF: Si5351A syntehsiser able to fire a FET driver chip directly??

[Chris Wilson <dead.fets@gmail.com>]

Hello Andy,

OK,  understood,  I did some calculations then checked them against an
on-line  calculator and get figures of 68K and 12K for the divider. If I
retained  the existing 15K to ground I might be able to use 82k as the
other  half?  Or  are  these  values too high for needed current flow?
Thanks.    This reply mistakenly went to you by direct e-mail as well,
my mail client needs the Reply To: changing on this forum each time to
go to the whole group, not sure why, sorry...

Monday, January 1, 2018, 10:40:59 PM, you wrote:

> When I said bias half way, meant half way between the two logic
> threshold limits.  Ie mid way between 1.3V (upper limit of
> guaranteed '0' and 2.4V (lower limit of guaranteed '1')  so bias at 1.8V


> Not half the supply volts.


> Study the data sheets and calculate.  Don't just play with components 
> willy-nilly.


> Andy  G4JNT






-- 
Best regards,
 Chris                            mailto:dead.fets@gmail.com