SYNCHRONIZATION METHOD, AND CORRESPONDING DEVICE AND INTEGRATED CIRCUIT

摘要

The operation of a circuit exhibiting a delay that is subject to a time spread as a function of process, voltage, and temperature variations is synchronized with a sync signal by applying to the sync signal a digital delay, which can add to the delay that is subject to time spread.;The digital delay is generated via cascaded delay elements having respective delay values and by controlling the number of cascaded delay elements in the circuit.

主权项

1. A synchronization method to synchronize a circuit with a synchronization signal, comprising:
operating the circuit, said circuit exhibiting a time spread delay associated with a process, voltage, temperature (PVT) variation; applying a digital delay to the synchronization signal, the digital delay formed as an amount time up to said time spread delay; generating said digital delay with at least one set of cascaded delay elements, each cascaded delay element of the at least one set of cascaded delay elements having a respective delay value; and controlling said digital delay by selecting one or more of the cascaded delay elements included in said at least one set of cascaded delay elements.