LOCKED LOOP CIRCUIT WITH REFERENCE SIGNAL PROVIDED BY UN-TRIMMED OSCILLATOR
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United States of America Patent
Stats
-
N/A
Issued Date -
Oct 4, 2018
app pub date -
Mar 31, 2017
filing date -
Mar 31, 2017
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An electronic device disclosed herein includes a locked loop circuit configured to receive a reference signal intended to have an intended frequency, wherein the locked look circuit is intended to generate an intended output signal having an intended frequency equal to the intended frequency multiplied by an intended multiplier. A frequency counter counts a number of pulses of the reference signal during a time window so as to determine an actual frequency of the reference signal. A control circuit determines an actual multiplier for the locked loop circuit that, when multiplied by the actual frequency of the reference signal, causes the locked loop circuit to generate an actual output signal having an actual frequency equal to the intended frequency.
First Claim
Other Claims data not available