High speed phase selector

Details High speed phase selector High speed phase selector

2005-11-01

2005-11-01

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

Having selection between plural continuous waveforms

C327S299000, C327S407000

Reexamination Certificate

active

06960942

ABSTRACT:
Method and circuitry for selecting phases while avoiding glitches in the output signal during phase switching. An integrated circuit having a plurality of input terminals coupled to receive a respective plurality of clock signals having different phases, and a plurality of control terminals coupled to receive a respective plurality of phase selection signals. The circuit is configured to output a first selected clock signal from the plurality of clock signals in response to a first combination of the phase selection signals, and further configured to switch from the first selected clock signal to a second selected clock signal in response to a second combination of the phase selection signal. The circuit disengages the first clock signal after the second phases selection signal is engaged.

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