Patent ID: 6853322
Filing Date: 2005-02-08
Classification: H03M

Abstract:
1. A data converter, implemented as an integrated circuit device, comprising: signal processing circuitry operable to produce an output signal in dependence upon a received input signal, production of the output signal being initiated at a time determined by a timing signal and being completed at a time which is delayed by a delay time with respect to said timing signal, said signal processing circuitry comprising a delay-contributing portion which makes a contribution to said delay time that is affected by variations in a power supply voltage applied to the delay-contributing portion; and an internal supply voltage regulator, connecting to, when the device is in use, a power source external of the device to receive therefrom an external power source voltage, and operable to derive from the external power source voltage a regulated internal power supply voltage which is applied to said corresponding delay-contributing portion so as to fix said contribution at some value independent of variations in said external power source voltage, at least one further circuitry portion within the device being powered by a supply voltage other than said regulated internal power supply voltage.