Slew rate calibrating circuit and slew rate calibrating method

Details Slew rate calibrating circuit and slew rate calibrating method Slew rate calibrating circuit and slew rate calibrating method

2007-10-30

2007-10-30

Barnie, Rexford (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

C327S172000, C327S170000, C327S178000, C326S027000

Reexamination Certificate

active

11362819

ABSTRACT:
A slew rate calibrating circuit and a slew rate calibrating method are provided which are capable of adjusting, with high accuracy, a slew rate of a signal to be output to a transmission path. A first clock is input and a delay time of a variable delay circuit is increased or decreased so that a phase of the first clock coincides with a phase of a first differential buffer output signal which rises when a voltage of a transmission path outgoing signal is at the same level as a first reference voltage or exceeds the first reference voltage. Then, a second clock is input and a slew rate of an output buffer is increased or decreased so that a phase of the second clock coincides with a phase of a second differential buffer output signal which rises when a voltage of a transmission path output signal is at the same level as a second reference voltage or exceeds the second reference voltage.

REFERENCES:
patent: 7109768 (2006-09-01), Rashid
patent: 2005/0285648 (2005-12-01), Wilson et al.
patent: 2007/0001725 (2007-01-01), Atha et al.
patent: 2000-174594 (2000-06-01), None
patent: 2002-26712 (2002-01-01), None

Affiliated with

Also associated with

Rating

Slew rate calibrating circuit and slew rate calibrating method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Slew rate calibrating circuit and slew rate calibrating method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slew rate calibrating circuit and slew rate calibrating method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3896024