Apparatus and system for digitally controlled oscillator
First Claim
Patent Images
1. An apparatus comprising:
- a digitally controlled oscillator (DCO);
a supply node to provide a regulated power supply to the DCO through a variable resistor; and
a digital loop filter (DLF) coupled to the DCO to generate a digital code according to a phase error, wherein the digital code is to adjust resistance of the variable resistor to modify the regulated power supply.
0 Assignments
0 Petitions
Accused Products
Abstract
Described herein is apparatus and system for a digitally controlled oscillator (DCO). The apparatus comprises a voltage regulator to provide an adjustable power supply; and a DCO to generate an output clock signal, the DCO including one or more delay elements, each delay element operable to change its propagation delay via the adjustable power supply, wherein each delay element comprising an inverter with adjustable drive strength, wherein the inverter is powered by the adjustable power supply. The apparatus further comprises a digital controller to generate a first signal for instructing the voltage regulator to adjust a voltage level of the adjustable power supply.
-
Citations
19 Claims
-
1. An apparatus comprising:
-
a digitally controlled oscillator (DCO); a supply node to provide a regulated power supply to the DCO through a variable resistor; and a digital loop filter (DLF) coupled to the DCO to generate a digital code according to a phase error, wherein the digital code is to adjust resistance of the variable resistor to modify the regulated power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. An apparatus comprising:
-
a digitally controlled oscillator (DCO); a supply node to provide a regulated power supply to the DCO through a variable resistor; and a digital loop filter (DLF) coupled to the DCO to generate a digital code according to a phase error, wherein the variable resistor has a resistance which is adjustable according to the digital code to modify the regulated power supply. - View Dependent Claims (13, 14)
-
-
15. A system comprising:
-
a memory; a processor coupled to the memory, the processor comprising; a digitally controlled oscillator (DCO); a supply node to provide a regulated power supply to the DCO through a variable resistor; and a digital loop filter (DLF) coupled to the DCO to generate a digital code according to a phase error, wherein the digital code is to adjust resistance of the variable resistor to modify the regulated power supply; and a wireless interface to allow the processor to couple to another device. - View Dependent Claims (16)
-
-
17. A method comprising:
-
providing a regulated power supply to a digitally controlled oscillator (DCO) through a variable resistor; and generating a digital code according to a phase error, wherein the variable resistor has a resistance which is adjustable according to the digital code to modify the regulated power supply. - View Dependent Claims (18, 19)
-
Specification