## What are the applications of IC 565?

LM565 is a general purpose PLL (Phase Locked Loop) IC designed for demodulation, frequency multiplication and frequency division….Pin Configuration.

Pin Name Function
8 Timing Resistor Resistor to free running frequency of VCO

### Which of the following are the applications of phase-locked loop?

Applications of Phase-Locked Loop

• FM demodulation networks for FM operations.
• It is used in motor speed controls and tracking filters.
• It is used in frequency shifting decodes for demodulation carrier frequencies.
• It is used in time to digital converters.
• It is used for Jitter reduction, skew suppression, clock recovery.

What is the purpose of phase-locked loop PLL?

The phase-locked loop (PLL) block is a feedback control system that automatically adjusts the phase of a locally generated signal to match the phase of an input signal. PLLs operate by producing an oscillator frequency to match the frequency of an input signal.

How do you calculate the capture frequency of PLL IC 565?

The PLL IC 565 is usable over the frequency range 0.1 Hz to 500 kHz. It has highly stable centre frequency and is able to achieve a very linear FM detection….Design Equations:

1. Centre Frequency (Free running freq./ output freq./oscillator freq.) fo=0.3/(R1 C1 )
2. Lock range. fL=(8fo)/V. where V=|+V|+|-V|……..(
3. Capture range.

## What is 565 IC?

IC 565 is the most commonly used phase locked loop IC. It is a 14 pin Dual-Inline Package (DIP). The pin diagram of IC 565 is shown in the following figure −

### What is the operating principle of PLL?

Operating principles of PLL The phase detector compares the input frequency fs with the feedback frequency fo and generates an output signal which is a function of the difference between the phases of the two input signals. The output signal of the phase detector is a dc voltage.

What are the advantages of using PLL?

Using a PLL has a few advantages, one of them being that a PLL generates a more sharp and concise clock signal. Also, you can change the speed of the clock itself which is very useful.

What is phase-locked loop explain operation of PLL with the help of block diagram?

PLL Block Diagram It is basically a flip flop consisting of a phase detector, a low pass filter (LPF),and a Voltage Controlled Oscillator (VCO). Block Diagram – Phase Locked Loops. The input signal Vi with an input frequency fi is passed through a phase detector.

## What was the first widespread application of PLL technology?

Television was the first widespread application of PLL technology, but not the last. During the early 1960’s, NASA began using PLL’s to automatically track telemetry signals when the carrier frequency drifts due to Doppler shifting or temperature effects.

### What are the components of 565 PLL block diagram?

The block diagram of IC 565 PLL consists of phase detector, amplifier, low pass filter and VCO.

How is a phase-locked loop PLL useful in detecting FM signals?

The PLL uses the concept of minimising the difference in phase between two signals: a reference signal and a local oscillator to replicate the reference signal frequency. Using this concept it is possible to use PLLs for many applications from frequency synthesizers to FM demodulators, and signal reconstitution.