Buffer & Clock buffer??

[barath_87]

clock buffer

What is the difference between buffer and clock buffer... How are they different in design and working ... PLs give some materials/links regarding ..

Thank you in advance..

 

[eexuke]

clock buffer requires equal rise/fall time, but normal buffer does not have such restrictions.

 

[barath_87]

thank you eexuke, can you please say me from the design perspective ....

 

[sohiltri]

clock buffer requires very high FAN OUT....and lesser delay as possible....so it is design exclusively and those are huge in size....

 

[amitjagtap]

hi
Clock buffer requires high fanout because of large capacitive load.Thus W/L calculation of clock buffer is different than normal buffer. another issue is symetric tr, tf requirement.Because of these mostly cascading of buffers is used to avoid a buffer with very large transistors.