Multicore rotary traveling wave oscillator
AssigneeNXP B.V.
InventorAndreas Johannes Köllmann
Life of this patent
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Abstract
Techniques, circuits, and systems related to a multicore rotary traveling wave oscillator (RTWO) are provided. The multicore RTWO includes at least two metal layers and multiple RTWO cores, such that each core comprises a set of differential signal conductors that are interleaved across the metal layers to optimize space and reduce parasitic effects. The relative positional configuration of these differential signal conductors varies across a range of directionalities and/or orientations. In embodiments, an oscillator output signal is generated by the multicore RTWO; the frequency of this oscillator output signal is adjusted based on a comparison of its phase with that of a reference signal, such as within a phase locked loop circuit.
Claims20
A multicore rotary traveling wave oscillator (RTWO), comprising:
- at least two metal layers;
- and
- a plurality of RTWO cores, wherein each RTWO core of the plurality of RTWO cores comprises a set of differential signal conductors, and wherein the differential signal conductors for the plurality of RTWO cores are interleaved via the at least two metal layers.
A system, comprising:
- a multicore rotary traveling wave oscillator (RTWO) comprising at least two metal layers and a plurality of RTWO cores, wherein each core comprises a set of differential signal conductors, and wherein the differential signal conductors for the plurality of RTWO cores are interleaved via the at least two metal layers;
- and
- a phase-locked loop (PLL) circuit coupled to the RTWO, the PLL circuit to stabilize a frequency of one or more RTWO signals generated by the RTWO by comparing a phase of the one or more RTWO signals with a reference signal.
A method, comprising:
- generating an oscillator output signal using a multicore rotary traveling wave oscillator (RTWO), the multicore RTWO comprising at least two metal layers and a plurality of RTWO cores, each RTWO core comprising a set of differential signal conductors, and the differential signal conductors for the plurality of RTWO cores being interleaved via the at least two metal layers;
- and
- adjusting a frequency of the oscillator output signal based on a comparison of a phase of the oscillator output signal with a reference signal.
Dependencies are inferred from the claim text.