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GaAs Monolithic Digital Phase/Frequency Discriminator
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1985
Year
Unknown Venue
Electrical EngineeringEngineeringHughes ScgLinear CharacteristicHigh-frequency DeviceClock RecoveryPhase CrossingMixed-signal Integrated CircuitFrequency ControlMicroelectronicsOptoelectronicsAnalog-to-digital ConverterElectronic Circuit
A GaAs monolithic digital phase/frequency discirminator with a linear characteristic at the zero phase crossing has been developed at Hughes SCG. The maximum operating frequency of 480 MHz is about ten times faster than that of existing silicon devices. These devices are currently used in low noise phase-locked loops. We discuss the design, operation, and use of this device.