[time-nuts] LT1016 as a pulse shaper...

[Leo Bodnar]

Not sure how calculated this - the PN chart for PL133-37 shows output jitter barely lifting off the input jitter trace.  LT do not say what their input jitter is.

Additive jitter for 100MHz 12kHz-20MHz is 80fs for PLL133-37 and 90fs for LTC6957 at more than 10 times lower price.

I would trust LT more but all this is still armchair engineering.  The only way to know is stick it on the board and check.

Note that PLL133-37 is AC coupled internally so not suitable for short sharp spikes or low frequencies. 

Cheers
Leo


On 4 Mar 2018, at 10:20, Bruce Griffiths wrote:
> Somewhat worse than an LTC6957 particularly at low offset frequencies.
> 
> Either that or the manufacturers PN noise measurement method doesn't work well at low offsets.
> 
> Bruce
> 
> On 04 March 2018 at 22:34 Leo Bodnar <leo at leobodnar.com> wrote:
> 
> Ulf,
> 
> What level of jitter would you consider acceptable?
> 
> Try PL133-37, I am using it for sinewave shaping on some of designs - including my 30ps pulser.
> 
> Leo
>