should external clock be pulse or sinusodial wave?

[dragondriver]

Hi there,

  I am going to connect an external clock source to 6711 card. But I wonder if the source should be pulse trains (squre wave) or could be sinusodial wave. When we say the frequency of the clock, does it mean the occurence of the rising edge or fall edge but not the pulse, right? And what's the voltage range for the clock signal?

[chris88 · Accepted solution]

Hi dragondriver

The external clock should be a pulse train, not a sine wave.

When we talk about frequency, as you stated it means the occurrence of rising or falling edges within a specified time.

The voltage range should be from 0 to 5V.

Regards