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What is frequency divider circuit What is its applications?
Based on the application, Frequency Dividers can be designed for both Analog and Digital domains. Analog Frequency Dividers are used for very high frequency application but are very rarely used. They are further classified into Regenerative Dividers, Parametric Dividers and Harmonic Injection Dividers.
Why do we need frequency divider?
Such frequency dividers were essential in the development of television. It operates similarly to an injection locked oscillator. Care must be taken to ensure the tuning range of the driving circuit (for example, a voltage-controlled oscillator) must fall within the input locking range of the ILFD.
How are frequency dividers used in a circuit?
We know frequency dividers makes any input frequency f divided by n integer value (f / n), the following circuit takes input frequency f and gives output frequency as (f / 2), (f / 4) and (f / 6). Here timer IC used to generate square pulse signal and it can be tuned to different frequency by variable resistor.
What is the slope of a frequency divider?
This circuit is called the Frequency Divider or Crossover. These frequency dividers are divided into several categories according to the number of forms (2, 3 or 4 ways). The crossover can have an attenuation value of the slope of 6, 12, 18 or 24 desibeles (dB) per octave.
How does a IC 4017 frequency divider work?
IC 4017 takes input clock at pin 14 and provides decade output from Q0 to Q9. To convert this into frequency divider we have taken output from Pin 2 and connected with LED2 through R4, this will visually indicate the output frequency through blinking.
Where are the pins in a frequency divider IC?
An LED with current limiting resistor is connected to Pin 3 of 555 and a 100nF capacitor Bypass capacitor is connected between Pin 5 and GND. Now, coming to the Frequency Divider IC i.e. 4017, its pins 16 (VDD) 8 (VSS) and 13 (E) are connected to +5V, GND and GND respectively. An LED with current limiting resistor is connected to pin 2 (Q1).