Integrated circuit devices using analog dividers
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United States of America Patent
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Jun 17, 2014
Grant Date -
N/A
app pub date -
Dec 22, 2011
filing date -
Dec 22, 2011
priority date (Note) -
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Abstract
A divider for use in an integrated circuit chip, such as a clock generator chip, includes a ramp generator circuit configured to generate a ramp signal and a synchronous detector circuit configured to receive the ramp signal and an input clock signal and to responsively control the ramp signal generator circuit to generate an output clock signal at an output of the synchronous detector circuit. In some embodiments, the synchronous detector circuit may include a voltage threshold detector circuit configured to receive the ramp signal and to generate a detection signal responsive thereto and a synchronous latch circuit having a clock input configured to receive the input clock signal and a data input configured to receive the detection signal. The synchronous latch circuit may be configured to control the ramp generator circuit.
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