phase detector


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phase detector

[′fāz di‚tek·tər]
(electronics)
A circuit that provides a direct-current output voltage which is related to the phase difference between an oscillator signal and a reference signal, for use in controlling the oscillator to keep it in synchronism with the reference signal. Also known as phase discriminator.
References in periodicals archive ?
In the following, the tracking property of Phase Detector for phase and frequency jumping will be deduced.
In addition, Aeroflex used mixerbased phase detectors in PLLs in the fractional multiplier.
The mixer acts as a phase detector and the delay line can be seen as a frequency-to-phase converter.
The channel model consists of the signal source, the radio channel, the phase detector and the bit errors counting block.
Comparing Equations 3 and 4, it can be seen that the noise of the divider and phase detector dominate the close-in phase noise, and the VCO noise dominates the out-of-band phase noise.
The ADF4159 achieves breakthrough phase detector operating frequency of 110 MHz and simultaneously consumes less than 100 mW of power, which is 5 times less than competitive solutions.
So the phase detector allows the design sensitive slab thickness sensors for high lossy composite if the absolute changes of the thickness (and permittivity also) are small.
The device integrates the phase detector, loop filter and VCO in a housing measuring 0.
The phase noise simulation algorithms have been improved by the addition of the 1/f phase noise contribution from the digital dividers and the phase detector, resulting in highly accurate phase noise predictions from close to the carrier all the way to the broadband noise floor.
Such anomalous phase jumps in the time of switching cannot be removed by any filtering after the phase detector (PD), which is one of the issues receiving PSK signals at low SNR.
Within the range that cycle slipping occurs, the phase detector and charge pump are charging up the capacitance in the loop filter at a maximum rate that is primarily dependent on the phase detector architecture and the magnitude of charge pump current.
A phase detector relates the data transitions to the selected clock phase and integrates the phase errors in a digital filter.