What are the specifications of delay locked loop?

[N Suresh]

delay locked loop

Hello everyone
I am doing a project on delay locked loop
I want to know abt. the specific applications regarding DLL, what r the impt. spec'ns of DLL.
thanku

 

[khouly]

Re: delay locked loop

delay locked loop used in CDR's "clock and data recovery"
used in high speed appication in clock tree
also can be used as frequency synthizer

khouly

 

[mady79]

Re: delay locked loop

Specifications would be
1)Peak-peak jitter
2)How many clock phases u r trying to generate (90,180 or 270 deg to get a T/4,T/2/3T/4 clock delays )
3)Divide by counter
4)Loop Filter bandwidth

 

[arno_a_boy]

Re: delay locked loop

jittering allowed, bandwidths, locking speed, clocking rate .
application in mostly synthesizers and phase syncronization and clock syncronization in fpga's specially.

 

[paladinzlp]

delay locked loop

1.open loop gain
2.unit gain bandwith(open loop gain)
3.phase noise
4.lock time
and so on

 

[vijay_nag]

Re: delay locked loop

hi!

a dll is better over a pll since most of the times it requires only a 1st order loop filter, while a pll usually requires a loop filter which is atleast of 2nd order.
you can see this article. he gives good specs about a dll.

hope it is useful,
vijay

 

[yibinhsieh]

Re: delay locked loop

DLL also used in de-skew circuit or frequency multiplier circuit.

Just for your reference.

Yibin.

 

[bill_sun]

delay locked loop

it can take the place of pll sometime.