Intel Corporation

Socionext Inc.

Ingo Koenenkamp

Niklas Linkewitsch

The present invention relates to analogue-to-digital converter circuitry, and in particular to alignment between one set of analogue-to-digital circuitry and another set. Such sets may be referred to as converter channels.

Analogue-to-digital converter circuitry employing an alignment signal

A clock recovery circuit includes a demodulator which generates in-phase and quadrature signals from a data signal and a phase adjuster which adjusts a phase of the quadrature signal independently from a phase of the in-phase clock signal. The phase adjustment causes a non-orthogonal relationship to exist between the phases of the quadrature and in-phase signals. The independent phase adjustment may be dynamically performed or may be performed in fixed increments to achieve a predetermined level of performance. In one application, the adjusted quadrature phase signal serves as a clock signal for controlling sampling of the data signal.

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Braunschweig, Germany

Ingo Koenenkamp