CN215990791U

CN215990791U - Bluetooth adapter with audio input and output function

Info

Publication number: CN215990791U
Application number: CN202122411548.3U
Authority: CN
Inventors: 黄庆龙; 邱月阳; 李泽健
Original assignee: Shenzhen Yuanliu Technology Co ltd
Current assignee: Shenzhen Yuanliu Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of Bluetooth adapters, in particular to a Bluetooth adapter with audio input and output functions. Compared with the prior art, the Bluetooth adapter with the audio input and output functions integrates various audio input and output modes, has various functions and is beneficial to meeting more use requirements of users.

Description

Bluetooth adapter with audio input and output function

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of Bluetooth adapters, in particular to a Bluetooth adapter with an audio input and output function.

[ background of the utility model ]

The bluetooth adapter of prior art generally only has the bluetooth and connects the function, can't provide audio input output function, and the function is comparatively single, can't satisfy user's increasingly high user demand.

[ Utility model ] content

In order to overcome the above problems, the present invention provides a bluetooth adapter with audio input/output function, which can effectively solve the above problems.

The utility model provides a technical scheme for solving the technical problems, which comprises the following steps: the Bluetooth adapter with the audio input and output functions comprises an adapter shell, wherein the rear end of the adapter shell is provided with an AUX input port, an AUX output port, a coaxial input port, a coaxial output port, an optical fiber input port and an optical fiber output port; the circuit board comprises a Bluetooth module and an ear amplifier chip, the ear amplifier chip is electrically connected with the Bluetooth module, the AUX input port, the coaxial input port, the optical fiber input port, the coaxial output port and the optical fiber output port are respectively and electrically connected with the Bluetooth module, and the AUX output port is electrically connected with the ear amplifier chip.

Preferably, a power switch and a mode selection switch are arranged at the front end of the adapter housing, and the power switch and the mode selection switch are respectively electrically connected to the circuit board.

Preferably, the front end of the adapter housing is provided with an LED indicator light and a key, which are electrically connected to the circuit board respectively.

Preferably, the rear end of the adapter housing is provided with a power input port and a bluetooth antenna, and the power input port and the bluetooth antenna are electrically connected to the circuit board respectively.

Preferably, the mode selection switch, the LED indicator light, the key and the Bluetooth antenna are respectively and electrically connected to the Bluetooth module.

Preferably, the circuit board further includes an LDO power converter, the LDO power converter is electrically connected to the bluetooth module, and the power input port is electrically connected to the LDO power converter and the ear amplifier chip, respectively.

Preferably, the model of the bluetooth module is CSR 8675.

Preferably, the ear-placing chip is HT 97220.

Compared with the prior art, the Bluetooth adapter with the audio input and output function is a one-to-two multifunctional Bluetooth adapter, can be selected to transmit any one of three signal input interfaces of TX COAX, TX OPTI and TX AUX in a TX transmission mode, is connected with equipment with Bluetooth receiving, such as a Bluetooth earphone, a Bluetooth sound box and the like, and can be connected with two Bluetooth devices; in the RX receiving mode, signals received by the A, B connected Bluetooth equipment are decoded and then simultaneously output from RX COAX, RX OPTI and RX AUX signal output interfaces; in the BYPASS direct mode, the input RX COAX is output from a TX COAX input RX COAX, the input RX OPTI is output from a TX OPTI input RX OPTI, the input RX AUX is output from a TX AUX input RX AUX, and the input is output from a corresponding interface from where the input is not transmitted or received; various audio input and output modes are integrated, the functions are various, and more use requirements of users can be met.

[ description of the drawings ]

FIG. 1 is a perspective view of a Bluetooth adapter with audio input/output function according to the present invention;

FIG. 2 is a diagram of the back structure of the Bluetooth adapter with audio I/O function according to the present invention;

fig. 3 is a circuit board frame structure diagram of the bluetooth adapter with audio input/output function according to the present invention.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1 to 3, the bluetooth adapter with audio input and output functions of the present invention includes an adapter housing 100, a power switch 1 and a mode selection switch 2 are disposed at a front end of the adapter housing 100, a circuit board is disposed inside the adapter housing 100, and the power switch 1 and the mode selection switch 2 are electrically connected to the circuit board respectively.

The front end of the adapter shell 100 is further provided with an LED indicator lamp 3 and a key 4, and the LED indicator lamp 3 and the key 4 are respectively and electrically connected to the circuit board.

The rear end of the adapter housing 100 is provided with an AUX input port 5(TX AUX), an AUX output port 6(RX AUX), a coaxial input port 7(TX COAX), a coaxial output port 8(RX COAX), an optical fiber input port 9(TX OPTI), and an optical fiber output port 10(RX OPTI), and the AUX input port 5, the AUX output port 6, the coaxial input port 7, the coaxial output port 8, the optical fiber input port 9, and the optical fiber output port 10 are electrically connected to the circuit board, respectively.

The rear end of the adapter housing 100 is further provided with a power input port 11 and a bluetooth antenna 12, and the power input port 11 and the bluetooth antenna 12 are electrically connected to the circuit board respectively.

The circuit board comprises a Bluetooth module and an ear amplifier chip, the ear amplifier chip is electrically connected with the Bluetooth module, the AUX input port 5, the coaxial input port 7, the optical fiber input port 9, the coaxial output port 8 and the optical fiber output port 10 are respectively and electrically connected with the Bluetooth module, and the AUX output port 6 is electrically connected with the ear amplifier chip.

The mode selection switch 2, the LED indicator light 3, the key 4 and the Bluetooth antenna 12 are respectively and electrically connected to the Bluetooth module.

The circuit board further comprises an LDO power converter, the LDO power converter is electrically connected to the Bluetooth module, and the power input port 11 is electrically connected to the LDO power converter and the ear-amplifier chip respectively.

The model of the Bluetooth module is CSR 8675. The model of the ear-placing chip is HT 97220. The power input port 11 is a TYPE-C USB DC5V power input.

The mode selection switch 2 includes three shift positions corresponding to a TX transmission mode, an RX reception mode, and a BYPASS through mode, respectively.

The number of the LED indicator lamps 3 is 11, and the LED indicator lamps comprise a transmitting mode indicator lamp, a receiving mode indicator lamp, a direct mode indicator lamp, an APTX Bluetooth audio transmission mode indicator lamp, an APTX-HD Bluetooth audio transmission mode indicator lamp, an APTX-LL Bluetooth audio transmission mode indicator lamp, a coaxial input indicator lamp, an optical fiber input indicator lamp, an AUX input indicator lamp, an A channel Bluetooth state indicator lamp and a B channel Bluetooth state indicator lamp.

The number of the keys 4 is 6, and the keys comprise a signal input selection key, a play/pause key, an adding volume key, a reducing volume key, an A channel Bluetooth key and a B channel Bluetooth key.

When the Bluetooth transceiver works, in a TX transmission mode, signals input by an optical fiber, a coaxial cable, AUX and the like are decoded and converted into Bluetooth signals by a Bluetooth module to be transmitted and output; in an RX receiving mode, receiving input digital signals through Bluetooth, decoding the digital signals through a Bluetooth module, outputting optical fiber and coaxial digital signals, and amplifying analog signals through an ear amplifier chip and then outputting the analog signals; under the BYPASS direct mode, the optical fiber input- > optical fiber output, the coaxial input- > coaxial output and the AUX input- > AUX output are connected in series; the TYPE-C USB DC5V power input DC5V power supply directly supplies power to the ear amplifier chip, and simultaneously supplies power to the LDO power converter to generate a 3.3V regulated power supply which is supplied to the Bluetooth module.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention should be included in the scope of the present invention.

Claims

1. The Bluetooth adapter with the audio input and output function is characterized by comprising an adapter shell, wherein the rear end of the adapter shell is provided with an AUX input port, an AUX output port, a coaxial input port, a coaxial output port, an optical fiber input port and an optical fiber output port;

the circuit board comprises a Bluetooth module and an ear amplifier chip, the ear amplifier chip is electrically connected with the Bluetooth module, the AUX input port, the coaxial input port, the optical fiber input port, the coaxial output port and the optical fiber output port are respectively and electrically connected with the Bluetooth module, and the AUX output port is electrically connected with the ear amplifier chip.

2. The bluetooth adapter with audio input/output function according to claim 1, wherein the front end of the adapter housing is provided with a power switch and a mode selection switch, and the power switch and the mode selection switch are electrically connected to the circuit board, respectively.

3. The bluetooth adapter with audio input and output functions as claimed in claim 2, wherein the front end of the adapter housing is provided with an LED indicator light and a key, and the LED indicator light and the key are respectively electrically connected to the circuit board.

4. The bluetooth adapter with audio input and output functions as claimed in claim 3, wherein the rear end of the adapter housing is provided with a power input port and a bluetooth antenna, and the power input port and the bluetooth antenna are electrically connected to the circuit board respectively.

5. The Bluetooth adapter having audio input/output function as claimed in claim 4, wherein the mode selection switch, the LED indicator light, the button and the Bluetooth antenna are electrically connected to the Bluetooth module respectively.

6. The bluetooth adapter with audio input/output function according to claim 4, wherein the circuit board further comprises an LDO power converter electrically connected to the bluetooth module, and the power input port is electrically connected to the LDO power converter and the ear amplifier chip, respectively.

7. The bluetooth adapter with audio input output function according to claim 1, wherein the bluetooth module has a model of CSR 8675.

8. The bluetooth adapter with audio input/output function according to claim 1, wherein the model of the ear playing chip is HT 97220.