CN202004749U

CN202004749U - Wireless receiver module circuit

Info

Publication number: CN202004749U
Application number: CN2011200379448U
Authority: CN
Inventors: 蒋六全
Original assignee: SHENZHEN YUXINXIN ELECTRONICS CO Ltd
Current assignee: SHENZHEN YUXINXIN ELECTRONICS CO Ltd
Priority date: 2011-02-14
Filing date: 2011-02-14
Publication date: 2011-10-05
Anticipated expiration: 2021-02-14

Abstract

The utility model provides a wireless receiver module circuit. The wireless receiver module circuit comprises a phase-locked loop circuit, a stereo decoding circuit, an audio signal output circuit, a power input module and a receiving antenna which are sequentially connected, wherein the power input module is connected with and supplies power to the phase-locked loop circuit and the stereo decoding circuit. The wireless receiver module circuit provided by the utility model finishes coding by adopting the phase-locked loop circuit in fit with an integrated chip to make receiving frequency more stable and accurate, improves the sensitivity of the product and reduces the production cost.

Description

The wireless receiver modular circuit

Technical field

The utility model relates to the circuit engineering field, relates in particular to a kind of wireless receiver modular circuit.

Background technology

In the epoch now that development in science and technology is maked rapid progress, along with the electronic product of Radio Transmission Technology is more and more, the exploitation that reaches more high-power transmission technology by wireless transmission method more and more comes into one's own.In the prior art, utilize the energy coupling between resonator, the wireless receiving module end system that the wireless power supply module end of energy from energy transmission system is wirelessly transferred to energy transmission system exists.

In actual conditions, wireless receiving module can be applicable to multiple different hand-holding communication device, such as mobile phone, wireless mouse, walkman ... Deng.Owing to the operating energy that various hand-holding communication device is required is all different, therefore how corresponding each wireless receiving module provides corresponding required energy and manages wireless power supply module provides energy to each wireless receiving module, and making efficient with the energy that promotes wireless energy transfer system is one of direction of constantly endeavouring of industry.

Summary of the invention

The purpose of this utility model is to provide a kind of wireless receiver modular circuit.

The utility model purpose is achieved through the following technical solutions.

A kind of wireless receiver modular circuit comprises: the phase-locked loop circuit of Xiang Lianing, stereo decoding circuit and audio signal output circuit successively, Power Entry Module, reception antenna; Described Power Entry Module is connected power supply with phase-locked loop circuit and stereo decoding circuit respectively.

Described, also comprise high-frequency filter circuit, the described high-frequency filter circuit first via and reception antenna are set up wireless connections, and high-frequency filter circuit the second tunnel connects phase-locked loop circuit.

Described, described phase-locked loop circuit comprises mixting circuit and high-frequency oscillating circuits.

Described, described high-frequency filter circuit also links to each other with Power Entry Module.

The utility model embodiment compared with prior art, beneficial effect is: the wireless receiver modular circuit that the utility model provides adopts phase-locked loop circuit, cooperates with integrated chip and finishes coding, makes receive frequency accurately stable more, and improved the sensitivity of product, reduced production cost.

Description of drawings

Fig. 1 is the utility model wireless receiver modular circuit theory diagram.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

See also shown in Figure 1ly, comprise successively the high-frequency filter circuit, phase-locked loop circuit, stereo decoding circuit and the audio signal output circuit that link to each other; Power Entry Module is connected power supply with high-frequency filter circuit, phase-locked loop circuit, stereo decoding circuit respectively, and high-frequency filter circuit is also set up wireless connections with reception antenna.

Wherein, phase-locked loop circuit comprises mixting circuit and high-frequency oscillating circuits.

Wireless receiver modular circuit operation principle: the radio wave that reception antenna receives, through high-frequency filter circuit, phase-locked loop circuit,, export to audio frequency through the stereo decoding circuit.

The utility model adopts phase-locked loop circuit, cooperate with integrated chip and to have finished coding, make receive frequency accurately stable more, simultaneously owing to adopted point-to-point to the frequency connected mode, having cancelled traditional automatic search is affected because of interference makes reception, more the treadmill phenomenon can not occur, be greatly improved aspect sensitivity and the distortion yet.

In the utility model, signal behind the high frequency difference frequency by filter directly entered intermediate-freuqncy signal enter stereo chip frequency input terminal, improved sensitivity so greatly, removed and commonly used controlled the worry of sensitivity and frequency, also improved production efficiency simultaneously with inductance coil.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims

1. a wireless receiver modular circuit is characterized in that, comprising: the phase-locked loop circuit of Xiang Lianing, stereo decoding circuit and audio signal output circuit successively, Power Entry Module, reception antenna; Described Power Entry Module is connected power supply with phase-locked loop circuit and stereo decoding circuit respectively.

2. wireless receiver modular circuit as claimed in claim 1 is characterized in that, also comprises high-frequency filter circuit, and the described high-frequency filter circuit first via and reception antenna are set up wireless connections, and high-frequency filter circuit the second tunnel connects phase-locked loop circuit.

3. wireless receiver modular circuit as claimed in claim 1 or 2 is characterized in that described phase-locked loop circuit comprises mixting circuit and high-frequency oscillating circuits.

4. wireless receiver modular circuit as claimed in claim 2 is characterized in that described high-frequency filter circuit also links to each other with Power Entry Module.