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Electronic Design7y

What Do Clocks, Carriers, Local Oscillators, and FM Have in Common?

1. The basic configuration of a PLL features a VCO output, controlling circuits such as the phase detector, and feedback dividers.
Hackaday17d

A PLL For Perfect Pitch

When Hackaday runs a contest, we see all manner of clever projects. But inevitably there are some we don’t see, because their ...
Design-Reuse8mon

PLL CMOS phase-frequency detector with CMOS charge pump

Phase-frequency detector (PFD) forms control signal for VCO tuning. PFD compares phases of divided VCO signal and divided reference oscillator signal and detects phase difference. Charge pump ...
Electronics Weekly12y

TI adds phase detector and PLL to precision RF synthesiser

The device combines a low noise phase-locked loop (PLL) and a phase detector in a frequency synthesiser that outputs 50 to 3760 MHz. Designated the LMX2581, the chip’s phase detector frequency of ...
Design-Reuse3mon

PLL lock detector with low current consumption and high accuracy

The lock detector monitors the current status of PLL by comparing the phase difference of VCO divided signal and reference oscillator signal with requ ...
Electronic Design20y

Detector Identifies PLL State - Electronic Design

Suitable for synchronization of optical networking equipment, PLLs, synthesizers, and other telecom applications, the Model SY13 frequency and phase-lock detector compares two ...