Patent ID: 7339413

Claim:
A clock generator, comprising: a first switching unit connected between a high-level voltage line and a clock signal output terminal, and adapted to output or cut off a high-level voltage in response to a first control signal and a second control signal; a second switching unit connected between a low-level voltage line and the clock signal output terminal and adapted to output or cut off a low-level voltage in response to the first control signal and an inverted second control signal; a third switching unit connected between the high-level voltage line and the clock signal output terminal and adapted to output or cut off the high-level voltage in response to an inverted first control signal and the inverted second control signal; and a fourth switching unit connected between the low-level voltage line and the clock signal output terminal and adapted to output or cut off the low-level voltage in response to the inverted first control signal and the second control signal; wherein the first and second control signals each have a duty ratio of 50% and have a phase difference of 90° therebetween.