spicer said:I want to know how to design a high speed(up to 800MHz) D flip-flop in frequency divider. And I also want to know if this D flip-flop need a reset port. Can some one help me? Thank you in advance.
jfyan said:spicer said:I want to know how to design a high speed(up to 800MHz) D flip-flop in frequency divider. And I also want to know if this D flip-flop need a reset port. Can some one help me? Thank you in advance.
hi
the simplest way is to use the standard cells your foundry provides.
whether reset or set ports are needed depends your programmable divider.
jeff
laglead said:you should use CML structure.
ahmed tolba said:I'm using TSMC(0.13 u)
can I reach such high frequency using this technology??
khouly said:yeah 0.18 ring oscillaotr can give u this speed 6 GHz , even u can get more with LC
and u can use the CML logic to do a dividers , but it will be good experince
khouly
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