CN207625550U

CN207625550U - A kind of wireless communication line

Info

Publication number: CN207625550U
Application number: CN201721780104.4U
Authority: CN
Inventors: 吕嘉骏
Original assignee: Jiangmen Pengjiang Tengjun Electronic Technology Co Ltd
Current assignee: Jiangmen Pengjiang Tengjun Electronic Technology Co Ltd
Priority date: 2017-12-15
Filing date: 2017-12-15
Publication date: 2018-07-17
Anticipated expiration: 2027-12-15

Abstract

The utility model discloses a kind of wireless communication lines, including main control chip IC7, the model LT8920 of main control chip IC7, No. 9 pins of main control chip IC7 are connected with antenna E1, No. 3 pins, No. 5 pins, No. 8 pins, No. 10 pins, No. 11 pins and No. 15 pin ground connection of main control chip IC7, No. 12 pins access 3.3V voltages of main control chip IC7.The main control chip IC7 of the utility model not only effectively strengthens interference free performance of the wireless communication line to environment, but also simplify peripheral circuit, reduces circuit cost by using the radio transmitting and receiving chip of model LT8920.

Description

A kind of wireless communication line

Technical field

The utility model is related to a kind of circuit, especially a kind of wireless communication line.

Background technology

With the development of wireless telecommunications, the use of wireless communication line is also more and more extensive, but existing wireless telecommunications are electric Road is not only easy by environmental disturbances, but also peripheral circuit is complicated.So not only so that the communication quality of wireless telecommunications is by shadow It rings, and increases circuit cost.

Utility model content

To solve the above problems, the purpose of this utility model is to provide a kind of wireless communication line, enhance wireless telecommunications The interference free performance of circuit and the peripheral circuit for simplifying wireless communication line.

Technical solution used by the invention for solving the technical problem is：A kind of wireless communication line, including main control chip No. 9 pins of the model LT8920 of IC7, main control chip IC7, main control chip IC7 are connected with antenna E1, and the 3 of main control chip IC7 Number pin, No. 5 pins, No. 8 pins, No. 10 pins, No. 11 pins and No. 15 pins ground connection, No. 12 pins of main control chip IC7 Access 3.3V voltages.

Further, No. 3 pins of main control chip IC7, No. 5 pins, No. 8 pins and No. 11 pins pass through capacitance C32 and electricity Hold C31 ground connection, capacitance C32 and capacitance C31 are connected in parallel.

Further, No. 11 pins of main control chip IC7 are grounded by capacitance C29 and capacitance C30, capacitance C29 and capacitance C30 It is connected in parallel.

Further, No. 7 pins of main control chip IC7 are grounded by capacitance C33, and No. 6 pins of main control chip IC7 pass through electricity Hold C34 ground connection.

Further, No. 7 pins of main control chip IC7 and No. 6 pins of main control chip IC7 are connected to one by resistance R42 It rises.

The utility model has the beneficial effects that：The utility model is a kind of wireless communication line, the master control of the utility model Chip IC 7 not only effectively strengthens wireless communication line to environment by using the radio transmitting and receiving chip of model LT8920 Interference free performance, and peripheral circuit is simplified, reduce circuit cost.

Description of the drawings

The utility model is described in further detail with example below in conjunction with the accompanying drawings.

Fig. 1 is the circuit diagram of the utility model.

Specific implementation mode

Fig. 1 is the circuit diagram of the utility model, as shown in Figure 1, the utility model is a kind of wireless communication line, packet Main control chip IC7 is included, No. 9 pins of the model LT8920 of main control chip IC7, main control chip IC7 are connected with antenna E1, master control No. 3 pins, No. 5 pins, No. 8 pins, No. 10 pins, No. 11 pins and No. 15 pin ground connection of chip IC 7, main control chip IC7 No. 12 pins access 3.3V voltages.The main control chip IC7 of the utility model by using model LT8920 wireless receiving and dispatching Chip not only effectively strengthens interference free performance of the wireless communication line to environment, but also simplifies peripheral circuit, reduces electricity Road cost.No. 3 pins, No. 5 pins, No. 8 pins and No. 11 pins of main control chip IC7 are connect by capacitance C32 and capacitance C31 Ground, capacitance C32 and capacitance C31 are connected in parallel.No. 11 pins of main control chip IC7 are grounded by capacitance C29 and capacitance C30, Capacitance C29 and capacitance C30 are connected in parallel.No. 7 pins of main control chip IC7 are grounded by capacitance C33, and the 6 of main control chip IC7 Number pin is grounded by capacitance C34.No. 7 pins of main control chip IC7 and No. 6 pins of main control chip IC7 are connected by resistance R42 It is connected together.

The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation Mode should all belong to the scope of protection of the utility model as long as it reaches the technique effect of the utility model with identical means.

Claims

1. a kind of wireless communication line, it is characterised in that：Including main control chip IC7, the model LT8920 of main control chip IC7, No. 9 pins of main control chip IC7 are connected with antenna E1, No. 3 pins of main control chip IC7, No. 5 pins, No. 8 pins, No. 10 draw Foot, No. 11 pins and No. 15 pin ground connection, No. 12 pins of main control chip IC7 access 3.3V voltages.

2. a kind of wireless communication line according to claim 1, it is characterised in that：No. 3 pins of main control chip IC7, No. 5 By capacitance C32 and capacitance C31 ground connection, capacitance C32 and capacitance C31 are connected in parallel for pin, No. 8 pins and No. 11 pins.

3. a kind of wireless communication line according to claim 1, it is characterised in that：No. 11 pins of main control chip IC7 are logical Capacitance C29 and capacitance C30 ground connection are crossed, capacitance C29 and capacitance C30 are connected in parallel.

4. a kind of wireless communication line according to claim 1, it is characterised in that：No. 7 pins of main control chip IC7 pass through Capacitance C33 ground connection, No. 6 pins of main control chip IC7 are grounded by capacitance C34.

5. a kind of wireless communication line according to claim 4, it is characterised in that：No. 7 pins of main control chip IC7 and master No. 6 pins of control chip IC 7 are linked together by resistance R42.