Lsi Corporation

Lsi Logic Corporation

Sk Hynix Memory Solutions Inc.

Heung S Kim

Lapoe E Lynn

Kenneth John Evans

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal oscillating at a frequency in response to a first control signal and a second control signal. The second circuit may be configured to generate the second control signal in response to (i) an input voltage and (ii) the output signal. The second circuit (i) generates the second control signal by comparing a peak voltage of the output signal to the input voltage and (ii) adjusts an amplitude of the control signal in response to the comparison.

Voltage controlled oscillator having a bandwidth adjusted amplitude control loop

In a high frequency mode a multiphase voltage-controlled oscillator (VCO) generates a first plurality of signals where each has the desired frequency and a different phase. A phase interpolator generates the signal at the desired frequency and the desired phase using a first plurality of signals. In a low frequency mode the VCO generates a second plurality of signals where each has a frequency which is a multiple of the desired frequency and a different phase. A multiphase frequency divider generates a third plurality of signals by dividing the frequency of the second plurality to the desired frequency while maintaining a phase relationship with the second plurality of signals. The phase interpolator generates the signal at the desired frequency and the desired phase using the third plurality.

Wide frequency range signal generator using a multiphase frequency divider

An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate an output signal oscillating at a first frequency in response to (i) a first control signal, and (ii) a second control signal. The second circuit may be configured to generate the second control signal in response to (i) an input signal having a voltage and (ii) the output signal. The second circuit may be configured to compare a peak voltage of the output signal to the input voltage.

Method and/or apparatus for implementing a voltage controlled ring oscillator having a multi-peak detected amplitude control loop

An apparatus comprising an amplifier, a first resistor and a second resistor. The amplifier (i) comprises a first transistor and a second transistor and (ii) may be configured to generate an output signal in response to an input signal. The first resistor may be connected between an emitter of the second transistor and a signal ground. The second resistor may be connected between the emitter of the second transistor and a base of the first transistor. A gain of the amplifier may be adjusted by varying a value of the first resistor and a value of the second resistor.

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San Jose, CA, United States of America

Heung S Kim