Whats the best circuit to delay clock? (CMOS)

[ericjohnson]

Re: How to make delay block?

If I have a clock in, what is the best circuit to delay the clock according to the need? Thank you for your help.
Eric

Added after 29 seconds:

BTW, this is for CMOS.

 

[steer]

Re: How to make delay block?

The simplest way is to use an invertor chain.
If one needs more accuracy, DLL or PLL with controlled phase offset can be used.