Four-frequency circuit

Published:2011/6/5 0:13:00 Author:John | Keyword: Four-frequency | From:SeekIC

The figure is for N = two-quarter frequency ratio circuit. The circuit is often formed by double-D-FF or two JK-FF devices. Frequency division ratio of n> 4 circuit is often achieved by counter (for example a preset counter), which is generally without the need to combine a single FF. The output duty cycle of the following divider circuit is 50%. It can be formed by D-FF or JK-FF. The JK-FF divider circuit tends to achieve a parallel and synchronous work easily. So such circuits can be suitable for high frequency applications. If the pin R, S (P) and other pins in FF are not used, it is necessary to connect to non-effective power or ground line according to the its functional requirements.



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