Modulation Evaluation System
First Claim
1. A modulation evaluation system associated with frequency modulations periods of a phase-locked loop, comprising:
- a first accumulator for accumulating clock edges a window of the frequency modulation periods;
a second accumulator coupled to the first accumulator and operative for accumulating clock edges during whole periods of the frequency modulation periods;
a dynamic enable control coupled to a first input associated with the first accumulator and a second input associated with the second accumulator,whereinthe dynamic enable control selectively transmits a first enable signal that controls when the first accumulator accumulates clock edges and a second enable signal controls when the second accumulator accumulates clock edges, andaccumulating clock edges enables modulation evaluation during production.
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Abstract
A modulation evaluation system associated with frequency modulations periods of a phase-locked loop is described. The system includes a first accumulator for accumulating clock edges a window of the frequency modulation periods; a second accumulator coupled to the first accumulator and operative for accumulating clock edges during whole periods of the frequency modulation periods; a dynamic enable control coupled to a first input associated with the first accumulator and a second input associated with the second accumulator, wherein the dynamic enable control selectively transmits a first enable signal that controls when the first accumulator accumulates clock edges and a second enable signal controls when the second accumulator accumulates clock edges, and accumulating clock edges enable modulation evaluation during production.
6 Citations
1 Claim
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1. A modulation evaluation system associated with frequency modulations periods of a phase-locked loop, comprising:
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a first accumulator for accumulating clock edges a window of the frequency modulation periods; a second accumulator coupled to the first accumulator and operative for accumulating clock edges during whole periods of the frequency modulation periods; a dynamic enable control coupled to a first input associated with the first accumulator and a second input associated with the second accumulator, wherein the dynamic enable control selectively transmits a first enable signal that controls when the first accumulator accumulates clock edges and a second enable signal controls when the second accumulator accumulates clock edges, and accumulating clock edges enables modulation evaluation during production.
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Specification
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- Resources
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Current AssigneeTexas Instruments, Inc.
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Original AssigneeTexas Instruments, Inc.
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InventorsPendurty, Hari, Lavery, Kevin Patrick
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Application NumberUS12/913,643Publication NumberTime in Patent OfficeDaysField of SearchUS Class Current375/224CPC Class CodesG06F 1/10 Distribution of clock signa...H03K 2005/00052 by mixing the outputs of fi...
