Re: PG502 freq too low
The specifications say <= 4 nanoseconds. 5 nanoseconds is 200 MHz sotoggle quoted messageShow quoted text
how much faster should it go?
The circuit built around U150A is the fast period generator. I would
check the values of the resistors around it and swap U150 for U180 or
U260 to see if that changes anything.
The ECL logic runs on +5 volts so I would take a careful look at the
+5 volt supply. Check for level and noise when operating. Check that
bulk decoupling capacitor C650 is good. If C650 is bad, then the +5
volt regulator might behave oddly allowing the +5 volt supply to
On 30 May 2016 12:46:26 -0700, you wrote: