Voltage-controlled oscillators and related systems
AssigneeFreescale Semiconductor, Inc.
InventorsVishal P. TRIVEDI, Kun-Hin TO
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Abstract
Apparatus are provided for voltage-controlled oscillators and related systems. An exemplary voltage-controlled oscillator includes an active-circuit arrangement that facilitates generation of an oscillating signal, and a resonator arrangement capacitively coupled to the active-circuit arrangement to influence an oscillation frequency of the oscillating signal based on a difference between a first control voltage and a second control voltage.
Claims20
A voltage-controlled oscillator comprising:
- a first voltage node to receive a first voltage;
- a second voltage node to receive a second voltage;
- an active-circuit arrangement facilitating generation of an oscillating signal;
- and
- a resonator arrangement capacitively coupled to the active-circuit arrangement, wherein the resonator arrangement is coupled to the first voltage node and the second voltage node to influence an oscillation frequency for the oscillating signal based on a difference between the first voltage and the second voltage.
A voltage-controlled oscillator comprising:
- a first node to receive a first voltage;
- a second node to receive a second voltage;
- a third node to receive a third voltage;
- a fourth node for a first oscillating signal;
- a fifth node for a second oscillating signal;
- an active-circuit arrangement to facilitate the first oscillating signal and the second oscillating signal, the active-circuit arrangement being coupled to the first node;
- a resonator arrangement coupled to the second node and the third node, the resonator arrangement providing an oscillation frequency for the first oscillating signal and the second oscillating signal based on a voltage difference between the second voltage and the third voltage;
- a first capacitive element connected between the fourth node and the resonator arrangement;
- and
- a second capacitive element connected between the fifth node and the resonator arrangement.
A voltage-controlled oscillator module to generate an oscillating signal, the voltage-controlled oscillator module comprising:
- an active-circuit arrangement coupled to a first voltage node to facilitate the oscillating signal at a first node;
- a transmission line element connected between the first voltage node and the first node;
- a resonator arrangement coupled to a second voltage node and a third voltage node, the resonator arrangement influencing an oscillation frequency of the oscillating signal based on a voltage difference between the second voltage node and the third voltage node;
- and
- a capacitive element connected between the first node and the resonator arrangement.
Dependencies are inferred from the claim text.