CN206850760U - Integrated form interphone circuit - Google Patents
Integrated form interphone circuit Download PDFInfo
- Publication number
- CN206850760U CN206850760U CN201720657962.3U CN201720657962U CN206850760U CN 206850760 U CN206850760 U CN 206850760U CN 201720657962 U CN201720657962 U CN 201720657962U CN 206850760 U CN206850760 U CN 206850760U
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- CN
- China
- Prior art keywords
- base band
- transceiver module
- control unit
- micro control
- band transceiver
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Abstract
The utility model proposes integrated form interphone circuit, it is related to communication technical field, including micro control unit, base band transceiver module, button is connected with the micro control unit, microphone and loudspeaker are connected with the base band transceiver module, the micro control unit is connected with base band transceiver module, the micro control unit is connected with power amplifier and low-noise amplifier respectively with base band Transmit-Receive Unit, the power amplifier and low-noise amplifier are connected with RF switch again, the RF switch is connected with low pass filter, the low pass filter is connected with antenna, receive and launch audio signal.Circuit of the present utility model, volume can be effectively reduced, reach preferable uniformity, reduce cost, reduced number of devices, realize inexpensive paster.
Description
Technical field
Communication technical field is the utility model is related to, especially a kind of integrated form interphone circuit.
Background technology
Intercom is a kind of half duplex mobile communications instrument, in the case where not needing any network support, it is possible to logical
Words, therefore intercom relies on the communication convenience of its own, is used widely in many industries.Currently used one kind
Intercom uses discrete circuit structure, and the structural volume is big, and uniformity is poor, and production and maintenance difficulty are high, required more device,
Cause to waste more paster cost.
Utility model content
The utility model is the defects of overcoming prior art, there is provided a kind of integrated form interphone circuit.
The utility model specifically adopts the following technical scheme that realization：
A kind of integrated form interphone circuit, including micro control unit, base band transceiver module, button connect with the micro control unit
Connect, microphone and loudspeaker are connected with the base band transceiver module, and the micro control unit is connected with base band transceiver module, the micro-control list
Member is connected with power amplifier and low-noise amplifier respectively with base band Transmit-Receive Unit, the power amplifier and low noise amplification
Device is connected with RF switch again, and the RF switch is connected with low pass filter, and the low pass filter is connected with antenna, is received
With transmitting audio signal.
Preferably, the power amplifier selects LXK6625 power amplifiers.
Preferably, the base band transceiver module uses RDA1846S chips or RDA1846 chips.
Integrated form interphone circuit provided by the utility model, its advantage are：This circuit can effectively reduce volume,
Reach preferable uniformity, reduce cost, reduce number of devices, realize inexpensive paster.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model interphone circuit；
Fig. 2 is the circuit theory diagrams of power amplifier；
Fig. 3 is the circuit theory diagrams of base band transceiver module.
Embodiment
To further illustrate each embodiment, the utility model is provided with accompanying drawing.These accompanying drawings are in the utility model discloses
A part for appearance, it can coordinate the associated description of specification to explain the running of embodiment original mainly to illustrate embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
As shown in figure 1, the integrated form interphone circuit that the present embodiment provides, including micro control unit, base band transceiver module, press
Button is connected with micro control unit, and microphone and loudspeaker are connected with base band transceiver module, and micro control unit is connected with base band transceiver module, micro-control
Unit is connected with power amplifier and low-noise amplifier respectively with base band Transmit-Receive Unit, power amplifier and low-noise amplifier
It is connected again with RF switch, RF switch is connected with low pass filter, and low pass filter is connected with antenna, is received and is launched audio
Signal.
The emission process of the circuit is：The language data of user is gathered by microphone, base band transceiver module is sent into and carries out
Speech encoding, the data after coding are sent in other intercoms with group after amplification and filtering by antenna.
The receive process of the circuit are：The language data information received by antenna, into base band transceiver module, base band
Transceiver module is decoded the language data received, is reduced into voice messaging, and speech play is carried out in loudspeaker.
In the specific implementation, power amplifier is using Xiamen microelectronics limited company of Lei Xun sections for the circuit of the application
LXK6625 power amplifiers, saturation output power 2W, specific implementation circuit are as shown in Figure 2.The base band transmitting-receiving mould of the present embodiment
RDA1846S or RDA1846 chip of the block using Shenzhen's power with Science and Technology Ltd., specific implementation circuit are as shown in Figure 3.And
Micro control unit uses relatively common H87F5108, and physical circuit repeats no more.Pass through building for above core component, this electricity
Road can effectively reduce volume, reach preferable uniformity, reduce cost, reduce number of devices, realize inexpensive paster.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (3)
- A kind of 1. integrated form interphone circuit, it is characterised in that：Including micro control unit, base band transceiver module, button with it is described micro- Unit connection is controlled, microphone and loudspeaker are connected with the base band transceiver module, and the micro control unit is connected with base band transceiver module, institute State micro control unit to be connected with power amplifier and low-noise amplifier respectively with base band Transmit-Receive Unit, the power amplifier and low Noise amplifier is connected with RF switch again, and the RF switch is connected with low pass filter, the low pass filter and antenna Connection, receive and launch audio signal.
- 2. integrated form interphone circuit according to claim 1, it is characterised in that：The power amplifier is selected LXK6625 power amplifiers.
- 3. integrated form interphone circuit according to claim 1, it is characterised in that：The base band transceiver module uses RDA1846S chips or RDA1846 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657962.3U CN206850760U (en) | 2017-06-07 | 2017-06-07 | Integrated form interphone circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720657962.3U CN206850760U (en) | 2017-06-07 | 2017-06-07 | Integrated form interphone circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206850760U true CN206850760U (en) | 2018-01-05 |
Family
ID=60799038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720657962.3U Active CN206850760U (en) | 2017-06-07 | 2017-06-07 | Integrated form interphone circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206850760U (en) |
-
2017
- 2017-06-07 CN CN201720657962.3U patent/CN206850760U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |