Semiconductor integrated circuit including plurality of phase-lo

Details Semiconductor integrated circuit including plurality of phase-lo Semiconductor integrated circuit including plurality of phase-lo

Filed on

1996-11-15

Date issued

2000-09-12

Examiner

Callahan, Timothy P.

Patent Class

Miscellaneous active electrical nonlinear devices, circuits, and

SubClass

Signal converting, shaping, or generating

SubSubClass

Synchronizing

Other Related Categories

327158, 331 2, H03L 7085, H03L 7093

Type

Patent

Status

active

Patent number

061183164

Description

ABSTRACT:
A semiconductor integrated circuit generating a stabilized oscillation signal based on an input signal includes a plurality of unit circuits connected in series, each of the unit circuits having at least an oscillator, a divider, and a phase comparator which construct at least one part of a phase-locked loop. In the unit circuit, a frequency of an oscillation output signal of a latter one of the unit circuits is higher than that of an oscillation output signal of a former one of the unit circuits.

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