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US 9,866,225 B2Granted
Digital phase-locked loop supply voltage control
AssigneeIntel Corporation
InventorsNoam Familia, Avigdor Saksonov, Eyal Fayneh, Joseph Shor
Life of this patent
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Abstract
Some embodiments include apparatuses and methods having a digitally controlled oscillator (DCO) in a digital phase-locked loop (PLL) and a control loop. The DCO can generate an output signal having a frequency based on a value of a digital information. The control loop can adjust a value of a supply voltage of the DCO based on the value the digital information. Additional apparatuses and methods are described.
Claims18
An apparatus comprising:
- a voltage generator to generate a voltage;
- a circuit to generate output signal having a frequency based on a value of a digital information in a first control loop;
- and
- a monitor in a second control loop to monitor the value of the digital information and to decrease a value of the voltage if the value of the digital information is less than a value of a lower limit of the value range, and to increase the value of the voltage if the value of the digital information is greater than a value of an upper limit of the value range, wherein the second control loop is arranged to operate at a frequency less than a frequency of the first control loop.
1 more element
An apparatus comprising:
- a voltage generator to generate a voltage;
- a circuit to generate output signal having a frequency based on a value of a digital information in a first control loop;
- and
- a monitor in a second control loop to monitor the value of the digital information and to adjust the value of the voltage based on the value of the digital information, wherein the voltage generator includes a bandgap reference generator to generate a reference voltage, and a filter to generate a filtered voltage based on the reference voltage, and the voltage is generated based on the filtered voltage, wherein the second control loop is arranged to operate at a frequency less than a frequency of the first control loop.
1 more element
An apparatus comprising:
- a voltage generator to generate a voltage;
- a circuit to generate output signal having a frequency based on a value of a digital information in a first control loop;
- and
- a monitor in a second control loop to monitor the value of the digital information and to adjust the value of the voltage based on the value of the digital information, wherein the monitor is to adjust the value of the supply voltage if the value of the digital information is outside a value range, and the value range of the digital information has lower limit greater than a minimum value of the digital information and an upper limit less than a maximum value of the digital information, wherein the second control loop is arranged to operate at a frequency less than a frequency of the first control loop.
1 more element
An apparatus comprising:
- a digitally controlled oscillator to receive a supply voltage and to generate an output signal;
- a first control loop to generate a digital information to control a frequency of the digitally controlled oscillator;
- and
- a second control loop to decrease the value of the supply voltage if the value of the digital information is less than a value of a lower limit of the value range, and to increase the value of the supply voltage if the value of the digital information is greater than a value of an upper limit of the value range, wherein the second control loop is arranged to operate at a frequency less than a frequency of the first control loop.
1 more element
A system comprising:
- memory device;
- and
- a processor coupled to the memory device, the processor including:
- a voltage generator to generate a supply voltage;
- a circuit to generate output signal having a frequency based on a value of a digital information in a first control loop;
- and
- a monitor in a second control loop to monitor the value of the digital information and to decrease a value of the supply voltage if the value of the digital information is less than a value of a lower limit of the value range, and to increase the value of the supply voltage if the value of the digital information is greater than a value of an upper limit of the value range, wherein the second control loop is arranged to operate at a frequency less than a frequency of the first control loop.
4 more elements
Dependencies are inferred from the claim text.