phase-locked loop

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phase-locked loop

[′fāz ¦läkt ′lüp]
(electronics)
A circuit that consists essentially of a phase detector which compares the frequency of a voltage-controlled oscillator with that of an incoming carrier signal or reference-frequency generator; the output of the phase detector, after passing through a loop filter, is fed back to the voltage-controlled oscillator to keep it exactly in phase with the incoming or reference frequency. Abbreviated PLL.
References in periodicals archive ?
Phase-lock loop intellectual property essential in designs and foundry
This family of high-performance, low-skew, low-jitter phase-lock loop (PLL) clock drivers strengthens and extends IDT's already expansive product portfolio.
Externally adjustable loop filters allow for adjustment of the phase-lock loop (PLL) bandwidths to compensate for reference clock noise.
The SCC also provides a programmable baud rate generator and digital phase-lock loop (DPLL) for recovering data clocking from received data streams.
Features of the NP2510 include an integrated phase-lock loop (PLL) based clock generator, a clock and data recovery (CDR) unit and a 16-bit 155 MHz parallel interface that can be operated in the LVPECL (Low Voltage Positive Emitter Coupled Logic).
Among the LCD controllers' most noteworthy technical features are its acceptance of both analog and digital inputs, IQScaling(tm) proprietary scaling engine, PerfectColor(tm) proprietary dithering algorithm, IQSync2(tm) advanced phase adjustment algorithm, integrated triple A/D converter and line-lock phase-lock loop (PLL), and compliance with the Digital Video Interface (DVI) standard.
It has an on-chip phase-lock loop (PLL) based clock generator, a clock and data recovery (CDR) unit and a 16-bit 155 MHz parallel interface that can be operated in the LVPECL (Low Voltage Positive Emitter Coupled Logic) or CMOS mode.
A typical example of a circuit where jitter measurements are important is a phase-lock loop (PLL) oscillator.
Both boards use Sony's CXA3256R analog-to-digital converter (ADC) integrated circuit (IC) and Sony's CXA3106Q phase-lock loop (PLL) IC.

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