Wideband delay-locked loop (DLL) circuit

Details Wideband delay-locked loop (DLL) circuit Wideband delay-locked loop (DLL) circuit

2011-03-24

2011-11-08

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000

Reexamination Certificate

active

08054117

ABSTRACT:
A wideband delay-locked loop (DLL) circuit includes an internal clock signal generating unit providing an internal control signal by selecting and interpolating between two clock delay signals during a primary phase locking operation. The internal clock signal may be modified by a secondary phase locking operation if more delay is required to phase lock the internal clock signal to an external clock signal. A phase detection/control circuit generates various control signals based on a phase comparison of the internal clock signal and the external clock signal.

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