Flexible forwarded clocking architecture for dense wavelength division multiplexing systems
AssigneeNVIDIA Corporation
InventorsSanquan Song, Nikola Nedovic, Thomas Hastings Greer, III, Carl Thomas Gray
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Abstract
A dense wave division multiplex (DWDM) receiver includes receiver lanes each configured to detect signals encoded in a different electromagnetic frequency band. The DWDM receiver applies a clock signal received on a variable one of the receiver lanes to lock a frequency of an injection locked oscillator (ILO) of a clock distribution network, and receiver lanes that are configured to receive data signals generate resonance on the clock distribution network. The resonant signal from the clock distribution network is applied to sample the received data signals.
Claims20
A dense wave division multiplex (DWDM) receiver comprising:
- a plurality of receiver lanes;
- logic to apply a clock signal received on a variable one of the receiver lanes to lock a frequency of an injection locked oscillator (ILO) of a clock distribution network;
- and
- wherein one or more of the receiver lanes are configured to receive data signals and to generate resonance on the clock distribution network.
A transceiver comprising:
- a transmitter comprising a plurality of transmitter lanes;
- a receiver comprising:
- a plurality of receiver lanes;
- logic to apply a clock signal forwarded from a variable one of the receiver lanes to lock a frequency of an injection locked oscillator (ILO) of a clock distribution network;
- and
- logic to selectively enable one or more of the receiver lanes to generate resonance on the clock distribution network.
An optical receiver comprising:
- a plurality of receiver lanes;
- logic to apply a clock signal received on a variable one of the receiver lanes to lock a frequency of an injection locked oscillator (ILO) of a clock distribution network;
- and
- logic to set an injection ratio of the ILO by selectively enabling and disabling individual ones of the receiver lanes to generate resonance on the clock distribution network.
Dependencies are inferred from the claim text.