Frequency Divider with 7490 circuit

This document presents an intriguing collection of frequency dividers with division factors ranging from 2 to 10. All options are based on the 7490, which is a decade and binary counter.

The frequency dividers utilizing the 7490 integrated circuit (IC) provide a versatile solution for generating lower frequency signals from a higher frequency input. The 7490 is a 4-bit binary counter that can be configured to operate in various counting modes, including decade counting, which counts from 0 to 9.

In the context of frequency division, the 7490 can be employed to achieve division factors from 2 to 10 by utilizing its binary counting capabilities. For example, when configured in a divide-by-2 mode, the 7490 toggles its output state with every two input pulses. Similarly, for higher division factors, additional logic gates may be incorporated to ensure proper counting and output signal generation.

The schematic for a basic frequency divider using the 7490 typically includes the IC itself, along with necessary resistors and capacitors for stabilization and filtering. The input clock signal is connected to the clock input of the 7490, while the output can be taken from the appropriate output pin corresponding to the desired division factor.

To achieve a division factor of 10, the 7490 can be configured to reset after reaching a count of 10, ensuring that the output signal toggles accordingly. This can be accomplished by connecting the appropriate output pins to the reset inputs of the IC through additional logic gates.

Overall, the use of the 7490 as a frequency divider provides a reliable and efficient method for generating lower frequency signals in various applications, including clock generation, signal processing, and digital timing circuits.Here you will find a interesting collection from frequency dividers with division factor from 2 until 10. All the choices they are based in the 7490 that are a Decade and Binary Counter.. 🔗 External reference