DELAY CONTROL CIRCUIT AND CLOCK GENERATING CIRCUIT INCLUDING THE SAME

摘要

A delay control circuit includes an update pulse selection part, a first update pulse generation part, and a second update pulse generation part. The first update pulse generation part responds to one among a power voltage detection signal and a calibration signal and enables one among a first and a second control signal. The first update pulse generation part receives the first control signal and generates a first update pulse. The second update pulse generation part receives the second control signal and generates a second update pulse of which pulse width is wider than that of the first update pulse. [Reference numerals] (11) Delay line;(110) Phase comparison part;(12) Delay modeling part;(120) Phase detection part;(15) Delay line control part;(16) Clock driver;(200) Multi-update signal generation part