Wake-up circuit

Details Wake-up circuit Wake-up circuit

2007-09-29

2010-06-29

Nguyen, Hai L (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S149000

Reexamination Certificate

active

07746135

ABSTRACT:
Disclosed herein is a wake-up circuit for a bias input of a circuit such as a slave DLL circuit, to allow it to be placed in a reduced power mode and be “awoken” (brought up to a control bias level) in a sufficiently small enough amount of time. The wake-up circuit couples a bias input node to a voltage level that is higher then the control bias level in response to a wake-up event, and then it couples the control bias node to the bias input node in response to their voltage levels being sufficiently close to one another.

REFERENCES:
patent: 6212398 (2001-04-01), Roberts et al.
patent: 6408396 (2002-06-01), Forbes
patent: 6738914 (2004-05-01), Christopher
patent: 7184799 (2007-02-01), Jin et al.
patent: 7307900 (2007-12-01), Salmon

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