INTEGRATED CIRCUIT DEVICE HAVING AN INJECTION-LOCKED OSCILLATOR
First Claim
Patent Images
1. A circuit, comprising:
- an input to receive an input clock signal;
an output to output an output clock signal; and
a variable injection-strength injection-locked oscillator (ILO), wherein the variable injection-strength ILO generates the output clock signal based on the input clock signal and power mode information, and wherein the output clock signal pauses synchronously with respect to the input clock signal when the input clock signal pauses.
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Abstract
A variable injection-strength injection-locked oscillator (ILO) is described. The variable injection-strength ILO can output an output clock signal based on an input clock signal. The variable injection-strength ILO can pause, restart, slow down, or speed up the output clock signal synchronously with respect to the input clock signal in response to receiving power mode information. Specifically, the variable injection-strength ILO can be operated under relatively strong injection when the input clock signal is paused, restarted, slowed down, or sped up.
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Citations
21 Claims
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1. A circuit, comprising:
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an input to receive an input clock signal; an output to output an output clock signal; and a variable injection-strength injection-locked oscillator (ILO), wherein the variable injection-strength ILO generates the output clock signal based on the input clock signal and power mode information, and wherein the output clock signal pauses synchronously with respect to the input clock signal when the input clock signal pauses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A circuit, comprising:
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an input to receive an input clock signal; an output to output an output clock signal; and a variable injection-strength injection-locked oscillator (ILO), wherein the variable injection-strength ILO generates the output clock signal based on the input clock signal, wherein the variable injection-strength ILO has multiple operating modes including a first operating mode and a second operating mode, wherein the locking range of the variable injection-strength ILO in the first operating mode is less than the locking range of the variable injection-strength ILO in the second operating mode, and wherein the variable injection-strength ILO is operated in one of the multiple operating modes based on power mode information. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A circuit, comprising:
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an input to receive an input clock signal; an output to output an output clock signal; and a variable injection-strength injection-locked oscillator (ILO), wherein the variable injection-strength ILO generates an output clock signal based on an input clock signal, wherein the variable injection-strength ILO is operated in one of multiple operating modes based on power mode information, wherein the multiple operating modes include a first operating mode and a second operating mode; wherein, in the first operating mode, the variable injection-strength ILO is capable of synchronously tracking the input clock signal over a first frequency range; and wherein, in the second operating mode, the variable injection-strength ILO is capable of synchronously tracking the input clock signal over a second frequency range, wherein the second frequency range is greater than the first frequency range. - View Dependent Claims (18, 19, 20)
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21-29. -29. (canceled)
Specification