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Singlechip based digital tuning frequency modulation (FM) radio

A technology of radio and single-chip microcomputer, which is applied in the direction of electrical components, transmission systems, etc., can solve the problems of large circuit size, inconvenient tuning, poor stability, etc., and achieve the effect of small circuit size, convenient tuning, and strong practicability

Inactive Publication Date: 2015-06-03
哈尔滨功成科技创业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a digital tuned FM radio based on a single-chip microcomputer in order to solve the disadvantages of large circuit size, inconvenient tuning, and poor stability in traditional FM radios.

Method used

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  • Singlechip based digital tuning frequency modulation (FM) radio
  • Singlechip based digital tuning frequency modulation (FM) radio

Examples

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Embodiment Construction

[0021] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0022] A digital tuned FM radio based on a single-chip microcomputer, which consists of a control module, an FM module, a display module, a power supply module and a power amplifier module. The digital tuned FM radio based on a single-chip microcomputer adopts the TEA5767 chip of PHILIPS company.

[0023] It is characterized in that the FM module makes the volume of the radio more compact, easy to carry, low power consumption, and high sensitivity.

[0024] It is characterized in that the control module writes related programs into the TEA5767 chip through peripheral circuits.

[0025] It is characterized in that the power amplifier module adopts LM386, which has low power consumption, can adjust and update the internal chain gain, and has a large range of power supply.

[0026] It is characterized in that the power supply voltage requirement of the single chip m...

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Abstract

The invention relates to a singlechip based digital tuning frequency modulation (FM) radio. The radio comprises a control module, an FM module, a display module, a power supply module and a power amplifier module. The singlechip based digital tuning FM radio adopts a TEA5767 chip of PHILIPS. Conventional FM radios have a large circuit volume, are inconvenient in tuning and have poor stability. The singlechip based digital tuning FM radio overcomes the defects. The FM module adopts the TEA5767 chip of PHILIPS, which has the advantages of having few external elements and low cost and realizing functions of the FM radio. The radio mainly comprises the TEA5767 frequency modulation chip and an STC89C52 microcontroller, processes the signal received by the frequency modulation chip and displays the signal on a liquid crystal display (LCD) by combining the display module, the power amplifier module, a keyboard and the power supply module. Then the design of the FM radio is completed.

Description

technical field [0001] The invention relates to a digital signal receiver, in particular to a single-chip microcomputer-based digital tuned FM radio. Background technique [0002] When humans discovered that information can be transmitted through radio waves, they are constantly striving to improve its functions, making communication equipment more power-saving, easy to carry, and increasing communication distance and reliability. A radio, that is, a receiver that can be used to receive information. Today's radio receivers are fully functional, and radios, telegraphs, televisions, etc. can all be called receivers. [0003] The radio, which has the advantages of fast dissemination of information and convenient reception, has not been replaced by ever-changing electronic products. Although the current mobile phones, the Internet, televisions, etc. make our lives more convenient and functionally replace the use of radios, traditional radios are still indispensable in our live...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/06
Inventor 张祖富白璐
Owner 哈尔滨功成科技创业投资有限公司
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