Can a Cyclone PLL accept a clipped sine wave with an amplitude of 0.8V - i.e. what is the maximum rise time on the edge of the PLL clock input?
PLL Clocks on Cyclone Devices
Started by ●October 25, 2004
Reply by ●October 25, 20042004-10-25
Jock wrote:> Can a Cyclone PLL accept a clipped sine wave with an amplitude of 0.8V - > i.e. what is the maximum rise time on the edge of the PLL clock input?What is wrong with a line receiver to meet the AC voltage specifications ? The 1.5V-IO requires 0.35 and 0.65 times 1.5V as levels. Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.net
Reply by ●October 26, 20042004-10-26
"Rene Tschaggelar" <none@none.net> wrote in message news:417d4fca$0$28024$5402220f@news.sunrise.ch...> Jock wrote: > > > Can a Cyclone PLL accept a clipped sine wave with an amplitude of 0.8V - > > i.e. what is the maximum rise time on the edge of the PLL clock input? > > What is wrong with a line receiver to meet the AC voltage > specifications ? > The 1.5V-IO requires 0.35 and 0.65 times 1.5V as levels. > > Rene > -- > Ing.Buero R.Tschaggelar - http://www.ibrtses.com > & commercial newsgroups - http://www.talkto.netWe don't have a lot of real estate and I was looking at ways of reducing component count.
