Method and apparatus for generating corrected quadrature phase signal pairs in a communication device

A method and an apparatus for generating corrected quadrature phase signal pairs in a communication device are provided. The apparatus includes a quadrature phase generator, programmable delay elements and a control circuit. The programmable delay elements receive a quadrature phase signal pair (signals I and Q ) from the quadrature phase generator. The control circuit generates a control signal based on outputs of the programmable delay elements. The control signal configures the programmable delay elements. The programmable delay elements are configured to adjust delay between the signals I and Q. The programmable delay elements are also used to adjust duty cycle for the quadrature phase signal pair to provide the corrected quadrature phase signal pair.