CN209030212U - A kind of NB-IoT data transmission module and NB-IoT data transmit chip - Google Patents
A kind of NB-IoT data transmission module and NB-IoT data transmit chip Download PDFInfo
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- CN209030212U CN209030212U CN201822170141.4U CN201822170141U CN209030212U CN 209030212 U CN209030212 U CN 209030212U CN 201822170141 U CN201822170141 U CN 201822170141U CN 209030212 U CN209030212 U CN 209030212U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The utility model proposes a kind of NB-IoT data transmission modules and NB-IoT data to transmit chip, it include: data processing module emission of radio frequency signals end connection power amplifier module rf signal reception end, antenna switch module emission of radio frequency signals end connects data processing module antenna radio-frequency signal receiving end, and data processing module duplexer control terminal connects antenna switch module switching signal end.The circuit can be realized stablizing for data and transmit, signal enhancing is carried out by power amplifier module in NB-IoT data transmission procedure, guarantee transmission accuracy rate, signal end switching is completed by antenna switch module and signal is switched on and off, to realize energy-saving effect, and integration degree is high for module encapsulation, and it is small in size, it is easily installed adaptation.
Description
Technical field
The utility model relates to electronic circuit field more particularly to a kind of NB-IoT data transmission module and NB-IoT data
Transmit chip.
Background technique
M2M (machine terminal intelligent interaction) has much using 2G technology at present, though their highly developed applications,
There is certain be limited in power consumption and single base station connection number.There are application scenes, ideal sensitivity requirement is not achieved.With
The development evolution of the communication technology, NB-IoT standard occur, can solve these problems.NB-IoT (full name Narrow Band
Internet ofThings), NB-IoT is the emerging technology in one, the field IoT, supports low power consuming devices in the honeycomb of wide area network
Data connection, also referred to as low-power consumption wide area network (LPWAN).NB-IoT supports that stand-by time is long, higher to network connectivity requirements
The efficient connection of equipment.Have the characteristics that covering is wide, connection is more, rate is fast, at low cost, low in energy consumption, framework is excellent etc..But it is existing
The circuit job insecurity of NB-IoT encapsulation, power consumption is excessively high, increased costs, this just needs those skilled in the art and solves accordingly
Technical problem.
Utility model content
The utility model aims to solve at least the technical problems existing in the prior art, especially innovatively proposes one kind
NB-IoT data transmission module and NB-IoT data transmit chip.
In order to realize the above-mentioned purpose of the utility model, the utility model provides a kind of NB-IoT data transmission module,
It include: data processing module, power amplifier module and antenna switch module；
Data processing module emission of radio frequency signals end connects power amplifier module rf signal reception end, antenna switch module
Emission of radio frequency signals end connects data processing module antenna radio-frequency signal receiving end, and data processing module duplexer control terminal connects
Connect antenna switch module switching signal end.The circuit can be realized stablizing for data and transmit, in NB-IoT data transmission procedure
By power amplifier module carry out signal enhancing, guarantee transmission accuracy rate, by antenna switch module complete signal end switching with
And signal is switched on and off, to realize energy-saving effect.
Preferably, further includes: power supply circuit feeder ear connects power switch power end, the connection of the first feeder ear of power switch
Data processing module power end, the second feeder ear of power switch connect power amplifier module power end, the power supply of power switch third
End connection antenna switch module power end.Design power switch can be powered control to each operational module, realize section
The technical effect of energy.
Preferably, further includes: data processing module is separately connected serial bus interface circuit, universal asynchronous bus interface electricity
Road and SIM card interface circuit.The interface circuit of connection periphery realizes multi-functional NB-IoT data laser propagation effect.
Preferably, the data processing module is RDA8908A.
Preferably, which is characterized in that the power amplifier module is RPM6569.
Preferably, the antenna switch module is RDASW61.
A kind of NB-IoT data transmission chip is also disclosed in the utility model, including the NB-IoT data transmission module.
The circuit package realizes integrated level height, the technical effect of save the cost in the chip.
Preferably, comprising: the chip is long 6.5mm* wide 7mm, and the TFBGA of 133 pins encapsulates chip.Module encapsulation
Integration degree is high, small in size, is easily installed adaptation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
Support the data communication module of NB-IoT technology；Realize low-power consumption standby.It works can reach under PSM mode and be less than
The standby average current of 4uA.Simultaneously as the module placement is reasonable, the volume of module has been further reduced, has been improved integrated
Degree also can satisfy different long periods using battery powered data communication applications scene needs, for example: intelligent road-lamp pipe
Reason, intelligent fire management, intelligent livestock management, intelligent door lock etc. field.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the utility model general illustration；
Fig. 2 is the utility model power amplifier chip and duplexer connection schematic diagram；
Fig. 3 is the utility model signal processing chip schematic diagram；
Fig. 4 is the utility model signal processing chip interface connection schematic diagram；
Fig. 5 is the utility model SIM interface schematic diagram；
Fig. 6 is the utility model NB-IoT pin schematic diagram.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
As shown in Figures 1 to 6, signal processing is done using RDA8908A chip, RPM6569 is put as transmission power signal
Greatly, Head switches of the RDASW61 as receiving and transmitting signal.Group is combined into a NB-IoT building block technique scheme.
The utility model provides a kind of NB-IoT data transmission module, comprising: data processing module, power amplifier module
And antenna switch module；
Data processing module emission of radio frequency signals end connects power amplifier module rf signal reception end, antenna switch module
Emission of radio frequency signals end connects data processing module antenna radio-frequency signal receiving end, and data processing module duplexer control terminal connects
Connect antenna switch module switching signal end.The circuit can be realized stablizing for data and transmit, in NB-IoT data transmission procedure
By power amplifier module carry out signal enhancing, guarantee transmission accuracy rate, by antenna switch module complete signal end switching with
And signal is switched on and off, to realize energy-saving effect.Power amplifier module passes through resistance R104 and resistance R105
Ground protection is carried out, power amplifier module carries out voltage regulation filtering, power amplification by capacitor C106, capacitor C104 and capacitor C105
The first radiofrequency signal of module end is separately connected capacitor C114 and inductance L102, and inductance L102 is also respectively connected with capacitor C115 and inductance
L105, inductance L105 are also connected with the 6th radiofrequency signal end capacitor C124 and antenna switch module, the second radio frequency of power amplifier module letter
Number end is separately connected capacitor C112 and inductance L101, and inductance L101 is also respectively connected with capacitor C113 and inductance L106, inductance L106
It is also connected with the 4th radiofrequency signal end capacitor C125 and antenna switch module, capacitor C125 is also connected with the 2nd radio frequency of antenna switch module letter
Number end, antenna switch module aerial signal end are separately connected inductance L103, the inductance L103 other end be separately connected capacitor C116 and
Inductance 104, the inductance L104 other end connect NB_ANT antenna.The circuit layout design is reasonable, and the operation is stable is smooth.
Preferably, further includes: power supply circuit feeder ear connects power switch power end, the connection of the first feeder ear of power switch
Data processing module power end, the second feeder ear of power switch connect power amplifier module power end, the power supply of power switch third
End connection antenna switch module power end.Design power switch can be powered control to each operational module, realize section
The technical effect of energy.
Preferably, further includes: data processing module is separately connected serial bus interface circuit, universal asynchronous bus interface electricity
Road and SIM card interface circuit.The interface circuit of connection periphery realizes multi-functional NB-IoT data laser propagation effect.The data simultaneously
Processing module can also expand connection ESIM interface, realize the data exchange without SIM card.
A kind of NB-IoT data transmission chip is also disclosed in the utility model, including the NB-IoT data transmission circuit.
The circuit package realizes integrated level height, the technical effect of save the cost in the chip.
RDA8908A chip is a high-performance, highly integrated processor.It is able to satisfy low-power consumption, inexpensive NB-IoT
Using.It is integrated with main circuit devcie on a single die, including baseband circuit, the radio circuit of multiband transmitting-receiving, with
And electric power management circuit.RDA8908A supports 3GPP R13NB-IoT technical specification, the function that software upgrading can achieve R14 to need
It asks.It can support the wide frequency ranges of radio frequency.Support three kinds of modes such as interior band, protection band or Independent Carrier Wave.Support PSM and eDRX
Mode.It is integrated with the psRAM (memory) of the NOR FLASH (flash memory) and 32Mb of 32Mb.There are UART abundant, I2C, ADC,
The interfaces such as GPIO.It is a small size, and the TFBGA of 6.5mm*7mm (long * wide), 133 feet encapsulate chip.And the module
Rationally distributed, integration degree is high for encapsulation, small in size, is easily installed adaptation.
RPM6569 is a wide-band linearity power amplifier chip, supports Mid Frequency 1710-1980MHz, low frequency 814-
915MHz. small package size 3.0*4.2*0.8mm (length, width and height).He can satisfy CDMA, WCDMA, HSDPA, HSUPA, SPA+
It and is that efficiency is relatively high with the mission need of LTE.It supports a digital pin control high-low power operating mode switching,
Optimize the demand of the performance and electric current under different power grades.It is also integrated with that a direct-coupling device is selective to be made
With.
RDASW61 is the duplexer mould group of the inexpensive small package of SP6T (hilted broadsword six is thrown).Only 2*2mm is big
It is small.It can meet filter with low insertion loss, High Linear, high isolation, wide band application demand.It can be applied to GSM, WCDMA, LTE etc.
It in hand-held communication system transmitting-receiving design, and does not need to increase direct current blocking capacitance on radio frequency path, it is possible to reduce device cost.
Above-mentioned NB-IoT data transmission circuit combination can be carried out effectively the transmitting-receiving work of signal, under low power consumpting state
Data interaction is carried out, circuit level is high, stable and reliable in work.
Fig. 6 is the pin schematic diagram of the NB-IoT, facilitates the company that user carries out peripheral circuit by the signal of pin
It connects and function match.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (8)
1. a kind of NB-IoT data transmission module characterized by comprising data processing module, power amplifier module and antenna
Switch module；
Data processing module emission of radio frequency signals end connects power amplifier module rf signal reception end, antenna switch module radio frequency
Signal transmitting terminal connects data processing module antenna radio-frequency signal receiving end, and data processing module duplexer control terminal connects day
Wiretap module switch signal end.
2. NB-IoT data transmission module according to claim 1, which is characterized in that further include: power supply circuit feeder ear
Power switch power end is connected, the first feeder ear of power switch connects data processing module power end, and power switch second is powered
End connection power amplifier module power end, power switch third feeder ear connect antenna switch module power end.
3. NB-IoT data transmission module according to claim 1, which is characterized in that further include: data processing module point
It Lian Jie not serial bus interface circuit, universal asynchronous bus interface circuit and SIM card interface circuit.
4. NB-IoT data transmission module according to claim 1-3, which is characterized in that the data processing mould
Block is RDA8908A.
5. NB-IoT data transmission module according to claim 1-3, which is characterized in that the power amplification mould
Block is RPM6569.
6. NB-IoT data transmission module according to claim 1, which is characterized in that the antenna switch module is
RDASW61。
7. a kind of NB-IoT data transmit chip, which is characterized in that transmit mould including NB-IoT data described in claim 1
Block.
8. NB-IoT data according to claim 7 transmit chip characterized by comprising the chip is long 6.5mm*
The TFBGA of wide 7mm, 133 pins encapsulate chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170141.4U CN209030212U (en) | 2018-12-24 | 2018-12-24 | A kind of NB-IoT data transmission module and NB-IoT data transmit chip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170141.4U CN209030212U (en) | 2018-12-24 | 2018-12-24 | A kind of NB-IoT data transmission module and NB-IoT data transmit chip |
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| CN209030212U true CN209030212U (en) | 2019-06-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225458A (en) * | 2021-01-18 | 2021-08-06 | 临汾汾能电力科技试验有限公司 | Intelligent linkage system and method for unattended transformer substation |
-
2018
- 2018-12-24 CN CN201822170141.4U patent/CN209030212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113225458A (en) * | 2021-01-18 | 2021-08-06 | 临汾汾能电力科技试验有限公司 | Intelligent linkage system and method for unattended transformer substation |
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