CN208622429U

CN208622429U - A kind of recorder core of double sound-recording functions

Info

Publication number: CN208622429U
Application number: CN201821425476.XU
Authority: CN
Inventors: 覃彦康
Original assignee: Shenzhen Maiyou Technology Co Ltd
Current assignee: Shenzhen Maiyou Technology Co Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2019-03-19
Anticipated expiration: 2028-08-31

Abstract

The utility model discloses a kind of recorder cores of double sound-recording functions comprising mainboard, mainboard are equipped with recording circuit, which includes recording chip, microphone MK1 and 3.5mm earphone base J1.The 3V3 pin of recording chip connects 3.3V voltage and is grounded by capacitor C9.No. 1 pin of 3.5mm earphone base is grounded, and No. 2 pins and No. 3 pins are connect with the first end of resistance R5, and are grounded by capacitor C13.No. 1 pin of microphone MK1 is connect with the first end of the second end of resistance R5, the first end of capacitor C5, resistance R6, and the second end of capacitor C5 is connected by the MIC_IN pin of resistance R4 and recording chip.No. 2 pins of microphone are grounded.The beneficial effects of the utility model are that sound that is achievable while recording microphone and earphone, recording effect are good.

Description

A kind of recorder core of double sound-recording functions

Technical field

The utility model relates to the technical field of recorder core, in particular to a kind of recorder core of double sound-recording functions.

Background technique

The record type of existing recorder core is substantially single microphone location, can only record audible sound It records, the effect of recording is bad.

Utility model content

In view of the problems of the existing technology, the main purpose of the utility model is to provide a kind of recording of double sound-recording functions For machine core, it can be achieved that recording the sound of microphone and earphone simultaneously, recording effect is good.

To achieve the above object, the utility model proposes double sound-recording functions recorder core, including mainboard, the mainboard It is equipped with recording circuit, the recording circuit includes recording chip, microphone MK1 and 3.5mm earphone base J1.The recording core The 3V3 pin of piece connects 3.3V voltage and is grounded by capacitor C9, and DC5V pin connects 5V voltage and is grounded by capacitor C8, GND pin and VSS pin are grounded, and VCOM pin is grounded by capacitor C1.No. 1 pin of the 3.5mm earphone base is grounded, No. 2 pins and No. 3 pins are connect with the first end of resistance R5, and are grounded by capacitor C13.No. 1 of the microphone MK1 is drawn Foot is connect with the first end of the second end of resistance R5, the first end of capacitor C5, the first end of resistance R6, capacitor C10, capacitor C5's Second end is connected by the MIC_IN pin of resistance R4 and recording chip.The second end of resistance R6 and first end, the electricity of resistance R2 Hold the first end connection of C2.The second end of resistance R2 is connect with the first end of the first end of capacitor C3, capacitor C4, and passes through resistance R1 connects 3.3V voltage.No. 2 pins of the microphone, the second end of capacitor C10, the second end of capacitor C2, capacitor C3 second It holds, the second end of capacitor C4 is grounded.

Specifically, in the utility model embodiment, the model MY1660-16S of the recording chip.

Specifically, in the utility model embodiment, which further includes two button cells, and each button cell is equal The mainboard is detachably arranged at by battery snap.

Specifically, in the utility model embodiment, which further includes loudspeaker, the input terminal of the loudspeaker It is electrically connected with the mainboard；The bottom surface of the mainboard is equipped with double-sided adhesive, and the double-sided adhesive is equipped with and radially extends along the double-sided adhesive Annular glue surface, the ontology of loudspeaker are bonded in the annular glue surface of double-sided adhesive.

Compared with prior art, the beneficial effects of the utility model are to can be achieved while recording the sound of microphone and earphone Sound, recording effect are good.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of one embodiment of recorder core of the double sound-recording functions of the utility model；

Fig. 2 is the explosive view of Fig. 1；

Fig. 3 is the pin connection schematic diagram of recording chip；

Fig. 4 is the pin connection schematic diagram of microphone and 3.5mm earphone base；

The utility model aim is realized, the embodiments will be further described with reference to the accompanying drawings for functional characteristics and advantage.

Specific embodiment

The utility model proposes a kind of recorder cores of double sound-recording functions.

Referring to Fig.1-4, Fig. 1 is the structural schematic diagram of one embodiment of recorder core of the double sound-recording functions of the utility model, Fig. 2 For the explosive view of Fig. 1, Fig. 3 is the pin connection schematic diagram of recording chip, and Fig. 4 is the pin company of microphone and 3.5mm earphone base Connect schematic diagram.

As shown in Figs 1-4, in the utility model embodiment, the recorder core of double sound-recording functions includes mainboard, mainboard It is equipped with recording circuit, recording circuit includes recording chip, microphone MK1 and 3.5mm earphone base J1.The 3V3 of recording chip Pin connects 3.3V voltage and is grounded by capacitor C9, and DC5V pin connects 5V voltage and is grounded by capacitor C8, GND pin with VSS pin ground connection, VCOM pin are grounded by capacitor C1.No. 1 pin of 3.5mm earphone base is grounded, No. 2 pins and No. 3 Pin is connect with the first end of resistance R5, and is grounded by capacitor C13.No. 1 pin of microphone MK1 and the second of resistance R5 The first end connection at end, the first end of capacitor C5, the first end of resistance R6, capacitor C10, the second end of capacitor C5 pass through resistance R4 It is connect with the MIC_IN pin of recording chip.The second end of resistance R6 is connect with the first end of the first end of resistance R2, capacitor C2. The second end of resistance R2 is connect with the first end of the first end of capacitor C3, capacitor C4, and connects 3.3V voltage by resistance R1.Mike No. 2 pins of wind, the second end of capacitor C10, the second end of capacitor C2, the second end of capacitor C3, the second end of capacitor C4 connect Ground.

Specifically, in the utility model embodiment, model MY1660-16S, the 3.5mm earphone base of recording chip The patch type earphone base of PJ-320 model.

The working principle of the utility model is: when microphone MK1 senses that sound can shake generation acoustic current-meter, the electric current It is coupled to the MIC_IN pin of recording chip by capacitor C5, then by storing in recording chip；When earphone base connects earphone Afterwards, acoustic current-meter can flow into earphone base J1, and the MIC_IN pin of recording chip is then also may be coupled to by capacitor C5, thus Recording chip is entered into store.Two channels between microphone MK1, earphone base J1 and recording chip form two kinds of records Sound mode, and the two channels can also record simultaneously.

In the utility model embodiment, which further includes two button cells, and each button cell passes through electricity Pond button is detachably arranged at mainboard.Two button cell shells can be powered for recording circuit, without external power supply.

In the utility model embodiment, which further includes loudspeaker, the input terminal and recording chip of loudspeaker PLAY pin connection, recording chip record sound can directly be played back by loudspeaker.The bottom surface of mainboard is equipped with two-sided Glue, double-sided adhesive are equipped with the annular glue surface radially extended along the double-sided adhesive, and the ontology of loudspeaker is bonded in the annular glue surface of double-sided adhesive On.By that, equipped with double-sided adhesive, easily loudspeaker and mainboard will can be integrated in the bottom surface of mainboard, meanwhile, also just It is connected on product, and connects very secured in mainboard and loudspeaker.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Under all utility models in the utility model are conceived, equivalent structure made based on the specification and figures of the utility model Transformation, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims

1. a kind of recorder core of double sound-recording functions, which is characterized in that including mainboard, the mainboard is equipped with recording circuit, institute Stating recording circuit includes recording chip, microphone MK1 and 3.5mm earphone base J1；The 3V3 pin of the recording chip meets 3.3V Voltage is simultaneously grounded by capacitor C9, and DC5V pin connects 5V voltage and is grounded by capacitor C8, and GND pin connects with VSS pin Ground, VCOM pin are grounded by capacitor C1；

No. 1 pin of the 3.5mm earphone base is grounded, and No. 2 pins and No. 3 pins are connect with the first end of resistance R5, and It is grounded by capacitor C13；

No. 1 pin and the second end of resistance R5, the first end of capacitor C5, the first end of resistance R6, capacitor of the microphone MK1 The first end of C10 connects, and the second end of capacitor C5 is connected by the MIC_IN pin of resistance R4 and recording chip；The of resistance R6 Two ends are connect with the first end of the first end of resistance R2, capacitor C2；The second end of resistance R2 and first end, the capacitor C4 of capacitor C3 First end connection, and 3.3V voltage is connect by resistance R1；No. 2 pins of the microphone, the second end of capacitor C10, capacitor The second end of C2, the second end of capacitor C3, the second end of capacitor C4 are grounded.

2. the recorder core of double sound-recording functions as described in claim 1, which is characterized in that the model of the recording chip MY1660-16S。

3. the recorder core of double sound-recording functions as described in claim 1, which is characterized in that it further include two button cells, it is each Button cell passes through battery snap and is detachably arranged at the mainboard.

4. the recorder core of double sound-recording functions as described in any one of claims 1-3, which is characterized in that it further include loudspeaker, The input terminal of the loudspeaker is electrically connected with the mainboard；The bottom surface of the mainboard is equipped with double-sided adhesive, and the double-sided adhesive is equipped with edge The annular glue surface that the double-sided adhesive radially extends, the ontology of loudspeaker are bonded in the annular glue surface of double-sided adhesive.