Multi-mode frequency divider based on modularization

A multi-mode frequency divider and modular technology, applied in the direction of pulse counter, counting chain pulse counter, pulse technology, etc., can solve the problem of limited frequency division range, etc., achieve the use of less number, simple adjustment method, and simple circuit structure Effect

Inactive Publication Date: 2013-09-11
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] The frequency divider based on the division by 2/division by 3 frequency division unit cascading technology has the characteristics of modularization, and the frequency decreases with each level of units, which is conducive to the optimization of power consumption, and the adjustment method of the frequency division ratio is very simple, only need Convert the frequency division ratio to

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  • Multi-mode frequency divider based on modularization
  • Multi-mode frequency divider based on modularization
  • Multi-mode frequency divider based on modularization

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0029] figure 2 A schematic structural diagram of a modular multi-mode frequency divider provided by the present invention is shown, the multi-mode frequency divider includes a multi-stage frequency division structure 302, a circuit module 304 for extending the frequency division range and an input digital control bit module 306, The multi-stage frequency division structure 302 is composed of a plurality of division-by-2 / division-by-three frequency division units with the same logical structure, wherein the multi-level frequency division structure 302 is connected in series with the circuit module 304 for extending the frequency division range, and is connected with The logic high and low levels generated by the input di...

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Abstract

The invention discloses a multi-mode frequency divider based on modularization. The multi-mode frequency divider comprises a multistage frequency division structure, a circuit module for expanding a frequency division range and an input digital control bit module. The multistage frequency division structure is formed by a plurality of divided-by-2/divided-by-3 frequency division units with the same logic structure, is in series connection with the circuit module for expanding the frequency division range and interacts with logic high and low levels generated by the input digital control bit module to achieve the wide frequency division range. The multi-mode frequency divider based on modularization is formed by cascade connection of the divided-by-2/divided-by-3 frequency division units with the same logic structure, is simple in structure and is characterized by being modularized; and frequency is reduced along with every stage of unit, and power consumption optimization is facilitated.

Description

technical field [0001] The invention relates to the technical field of frequency dividers, in particular to a multimode frequency divider based on module frequency division range expansion. Background technique [0002] Existing multi-mode frequency dividers are usually divided into two types: frequency dividers based on dual-mode prescaler technology and frequency dividers based on divide-by-2 / divide-by-3 unit cascade technology. [0003] The frequency divider based on dual-mode prescaler technology is generally composed of M / M+1 dual-mode prescaler (M is the nth power of 2, and n is a positive integer), programmable counter P and swallow pulse counter S In the configuration, P>S is required in the two counters, and the function of the multi-mode frequency division ratio is realized through the values ​​of P and S. The frequency divider performs technology on (M+1)S pulses first, and then completes the counting work of (P-S)M input pulses, and finally obtains the freque...

Claims

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Application Information

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IPC IPC(8): H03K23/66
Inventor 肖津津黄水龙谭茗武振宇胡家杰高振东张海英
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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