A delay locked loop for analog signal

In this paper, we have presented a phase loop for controlling a chain of g
_m
-C all-pass filters. It's called Delay Locked Loop for Analog Signal Processing, and it's used for signal's phase regulation. 0.35 ¿m CMOS technology was used for design and verification of the circuit. According to the obtained results, we have concluded that it is possible to obtain a phase regulation in a wide frequency range, from 100 kHz up to 100 MHz.