Distributed delay-locked-based clock and data recovery systems

Details Distributed delay-locked-based clock and data recovery systems Distributed delay-locked-based clock and data recovery systems

2006-06-06

2006-06-06

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S268000, C327S283000, C327S290000

Reexamination Certificate

active

07057435

ABSTRACT:
A clock and data recovery system using a distributed variable delay line is provided. The clock and data recovery system can use a delay-locked loop methodology to align a local clock with an incoming data stream. The variable delay line can include a transmission line coupled with a plurality of variable capacitors responsive to a control voltage. The variable delay line can also have a ladder configuration of multiple LC subcircuits each having a variable impedance responsive to a control voltage.

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