High precision output single-chip microcomputer phase-locked loop rapid frequency source

A high-precision, phase-locked loop technology, applied in the field of electronics, can solve the problems of insufficient phase-locked loop fast frequency source related solutions, accuracy and product stability to be improved, etc., to achieve good product stability, good suppression, and output frequency. high effect

Inactive Publication Date: 2016-03-16
北京中科飞鸿科技股份有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] However, the traditional single-chip phase-locked loop fast frequency source relate

Method used

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  • High precision output single-chip microcomputer phase-locked loop rapid frequency source
  • High precision output single-chip microcomputer phase-locked loop rapid frequency source

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[0016] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Such as figure 1 As shown, a high-precision output single-chip phase-locked loop fast frequency source provided by an embodiment of the present invention mainly includes: fixedly installed on the phase-locked loop and the single-chip module that are basically connected to each other, and the phase-locked loop And the switching power supply supplied by the SCM module.

[0018] Specifically, the phase-locked loop can be fixed to the bas...

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Abstract

The invention discloses a high precision output single-chip microcomputer phase-locked loop rapid frequency source. The high precision output single-chip microcomputer phase-locked loop rapid frequency source is characterized by comprising a switch power source which is fixedly mounted on a phase-locked loop and a single-chip microcomputer and is used for supplying power for the phase-locked loop and the single-chip microcomputer, wherein the phase-locked loop and the single-chip microcomputer are substantially connected, the phase-locked loop comprises a phase discriminator, a loop filter, a voltage control oscillator VCO and an N frequency divider which are sequentially connected to form a loop. Precise output of radiofrequency signals is realized through the rapid frequency source controlled by the phase-locked loop, feedback signals are reliably transmitted through three buses, intelligent frequency locking for maintenance work is realized, and online work, high output frequency, good inhibition performance and good product stability are all realized.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a high-precision output single-chip phase-locked loop fast frequency source. Background technique [0002] At present, with the development of digital technology and the widespread application of microcontrollers in electronic systems, the traditional design methods have been changed to a large extent, and the application of single-chip phase-locked loop technology has become increasingly widespread. The fast frequency source of the single-chip microcomputer phase-locked loop is applied to the communication equipment, which makes the selection of the working frequency extremely simple and accurate. And with the rapid development of large-scale integrated circuit (LSI) technology and single-chip microcomputer technology, it has greatly promoted the improvement of the integration degree of the fast frequency source of the single-chip phase-locked loop and the reduction of the v...

Claims

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Application Information

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IPC IPC(8): H03L7/099
CPCH03L7/0992
Inventor 赵子权赵立峰张志永张帅
Owner 北京中科飞鸿科技股份有限公司
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