Circuit arrangement to double the clock frequency for a data transmission system
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United States of America Patent
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Dec 2, 1997
Grant Date -
N/A
app pub date -
Oct 9, 1996
filing date -
Nov 18, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A circuit arrangement is indicated to generate a clock frequency for a data transmission system by using a voltage-controlled fundamental wave quartz oscillator (VCXO), whose frequency can be changed within narrow limits as a function of the control voltage. To double the frequency of the fundamental wave quartz oscillator (VCXO), its output (A) is connected to the input of a rectifier bridge circuit (1) having an ohmic resistance (2) placed at its output. The ohmic resistance (2) is connected to both inputs of a comparator (3), and the clock frequency (f) is present at the output of the comparator.
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