digital phase shift - Electronic Circuits Projects Diagrams Free

Maryam · 16th September 2004, 09:06 AM

Is there a simple digital way to make a 90 degrees phase shift for a digital signal?

Styx · 16th September 2004, 09:59 AM

is it a simple signal (as in doesnt change frequency). If so just delay it for 1/4 of the timeperiod shoud do it

elnaz · 16th September 2004, 10:07 AM

No, It has variable frequency.
Actually we are going to multiply a signsl's frequency by 4, and to do this we have two original signals named A,B which are a linear glass scale encoder's outputs and they have 90 degrees phase difference.
we xor them to make the frequency twice, and so I need to make another more xor to reach to 4 times multiplied frequency.

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16th September 2004, 09:06 AM	#1
Maryam	digital phase shift Is there a simple digital way to make a 90 degrees phase shift for a digital signal?

16th September 2004, 09:59 AM	#2
Styx	is it a simple signal (as in doesnt change frequency). If so just delay it for 1/4 of the timeperiod shoud do it

16th September 2004, 10:07 AM	#3
elnaz	No, It has variable frequency. Actually we are going to multiply a signsl's frequency by 4, and to do this we have two original signals named A,B which are a linear glass scale encoder's outputs and they have 90 degrees phase difference. we xor them to make the frequency twice, and so I need to make another more xor to reach to 4 times multiplied frequency.