PLL1707DBQR

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Clock Generators, PLLs, Frequency Synthesizers

The PLL1707DBQR is a Phase-Locked Loop (PLL) device designed for applications that require wide-frequency range. This type of PLL is used extensively in acoustic and telecoms applications, digital communication and digital video broadcasting. It is composed of a variable-frequency oscillator, a clock source, a phase detector and a low pass filter.

Application Field

The PLL1707DBQR is a versatile device that is applicable in industrial, consumer and telecommunications applications. It can be used in frequency synthesizers, frequency dividers, phase-lock loops, multi-carrier modems, mobile phone baseband receivers, built-in radio systems, laser modulators, audio and video synchronization, as well as wireless data transmission systems.

Working Principle

The PLL1707DBQR operates on the principle of VCO (Variable-Frequency Oscillator). This device is controlled by a feedback loop, which includes a phase detector, a low-pass filter and a voltage controlled oscillator (VCO). The phase detector is the core of this PLL, which compares the phase of the frequency-modulated clock signal with the reference input. It produces an error signal which is used by the low pass filter to generate a voltage to control the oscillation frequency, thus lock the frequency to the reference input.

It is worth noting that the PLL1707DBQR is designed with a wide-range frequency modulation capability, so it can respond to a wide range of input sources, such as crystal oscillators, crystal resonators, pulse generators, tuned LC-oscillators and external reference signals. This makes the PLL1707DBQR especially useful for different types of applications.

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