CN201207714Y - Slave module for CDMA mobile terminal - Google Patents
Slave module for CDMA mobile terminal Download PDFInfo
- Publication number
- CN201207714Y CN201207714Y CNU2008201150788U CN200820115078U CN201207714Y CN 201207714 Y CN201207714 Y CN 201207714Y CN U2008201150788 U CNU2008201150788 U CN U2008201150788U CN 200820115078 U CN200820115078 U CN 200820115078U CN 201207714 Y CN201207714 Y CN 201207714Y
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- mobile terminal
- cdma mobile
- circuit board
- external interface
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Abstract
The utility model discloses a slave module of a CDMA mobile terminal, belonging to the communication field and designed to solve the problem of the bulky communication terminal module in the prior art, which is difficult to be applied to the mobile phone for flexible secondary development. The slave module of the CDMA mobile terminal comprises a radio frequency circuit and a central processor which are interconnected. The central processor is also connected with a memory and an external interface, wherein the radio frequency circuit, the central processor, the memory and the external interface are arranged on one face of a circuit board; pins of the external interface are positioned around the circuit board circumferentially, with the adopted structure of marginal plated-through holes; and a soldering pan corresponding to the pins of the external interface is arranged on the other face of the circuit board. The slave module of the CDMA mobile terminal is applied to be arranged on a system board of the CDMA mobile terminal.
Description
Technical field
The utility model belongs to the mobile communication technology field, is specifically related to a kind of special mobile terminal based on CDMA mobile communication system from module.
Background technology
Along with the extensive development of portable terminal mobile phone, the user is more and more higher to the requirement of mobile phone, and mobile phone has become market developing trend by the single mode machine to dual-mode machine and double-module double-standby expansion.At present, Chang Yong wireless communication technology has GSM (Global System for Mobile Communications, global system for mobile communications) and CDMA (Code Division Multiple Access, code division multiple access).Common mobile phone can only be supported a kind of network schemer, i.e. GSM network or cdma network, and this kind mobile phone belongs to the single mode machine.And dual-mode machine is meant the mobile phone that can work under two kinds of network schemers; it can be according to the needs of environment or practical operation; between GSM network and cdma network, switch neatly, thereby can remain conversation constantly, and make the user obtain high-quality voice enjoyment.
Therefore in order to satisfy user's demand, existing a kind of scheme is directly to develop dual-mode machine, and the shortcoming of this mode is that product design costs is higher, and the construction cycle is long, and development product is with strong points, can not realize secondary development flexibly.Another kind of scheme is the exploitation communication terminal module, be fixed on the enterprising enforcement usefulness of mobile phone, and existing communication terminal module all belongs to general module on the present market, has following shortcoming: do not have specific aim in the function design, volume is big, is difficult to be applied to carry out on the mobile phone secondary development flexibly.
The utility model content
On the one hand, embodiment of the present utility model provides a kind of volume little, can be applied to carry out on the mobile phone cdma mobile terminal of flexible secondary development from module.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of cdma mobile terminal comprises interconnected radio circuit and central processing unit from module, and described central processing unit also is connected with memory and external interface, wherein,
Described radio circuit, central processing unit, memory and external interface are arranged on the one side of circuit board;
The pin of described external interface be positioned at described circuit board around, adopt the structure in edge metal hole, be arranged on the another side of described circuit board with the corresponding pad of the pin of described external interface.
Owing to adopted said structure, volume is little from module for the cdma mobile terminal that the utility model embodiment provides, and directly paster is applied on the external system, and its peripheral circuit is succinct, and it is convenient to use, and can realize flexible secondary development.
Description of drawings
Fig. 1 is the Facad structure schematic diagram of the utility model cdma mobile terminal from the circuit board of module;
Fig. 2 is the reverse side structural representation of the circuit board of module shown in Figure 1;
Fig. 3 is the overall dimension schematic diagram of module shown in Figure 1;
Fig. 4 is the circuit block diagram of module shown in Figure 1.
Embodiment
The utility model provides a kind of volume little, and the cdma mobile terminal that can carry out flexible secondary development is described in detail the utility model below in conjunction with accompanying drawing from module.
The cdma mobile terminal of present embodiment adopts 4 layers of pcb board (Printed Circuit Board, printed circuit board (PCB)) from module, and the laminated construction design of 1+2+1 has reduced manufacturing cost.And peripheral pin is a stamp cellular type paster interface, and profile is small and exquisite, can be applicable to carry out on the mobile phone secondary development flexibly.
Shown in Figure 1, be the circuit board Facad structure schematic diagram of present embodiment cdma mobile terminal from module, it is provided with interconnected radio circuit 1 and central processing unit 2, central processing unit 2 also is connected with memory 3 and external interface 4, the pin of external interface 4 be positioned at circuit board around, adopt the structure of single face pad fringing plated-through hole.And present embodiment adopts facecloth spare mode to design pcb board: radio circuit 1, central controller 2, memory 3 and external interface 4 all are arranged on the front of pcb board, all are arranged on the reverse side of circuit board with the corresponding pad of the pin of external interface 4.Therefore, the cdma mobile terminal of present embodiment can directly adopt SMT (Surface Mounted Technology, surface installation technique) paster to be applied on the external system applying flexible from module; Its peripheral circuit is succinct simultaneously, and it is convenient to use, and can realize flexible secondary development.
In order to increase the flexible exploration of cdma mobile terminal from module, but external interface 4 comprise User Recognition circuit, audio frequency input/output interface, USB interface, serial communication interface expanded application universal input/output interface (General Purpose Input Output, GPIO) and power interface.Cdma mobile terminal can be connected to PC (Personal Computer, personal computer) by USB interface or serial communication interface from module, realizes the data download.Universal input/output interface can be used for realizing flexibly the expanded application of difference in functionality.
Shown in Figure 2, be the circuit board reverse side structural representation of present embodiment cdma mobile terminal from module.Download and upgrade directly designs on this face of circuit board with test point 5, helps the maintenance and the software upgrading of module.
Shown in Figure 3, be the overall dimension schematic diagram of present embodiment cdma mobile terminal from module.This cdma mobile terminal is 36.25mm (wide) x24.25mm (length) x2.5mm (height) from the overall dimension of module, and profile is small and exquisite.External interface adopts the SMD design of single face pad fringing plated-through hole, be placed on circuit board around, can directly be welded on the peripheral system plate applying flexible.
Shown in Figure 4, be the circuit block diagram of present embodiment cdma mobile terminal from module.In this circuit, radio circuit comprises reception and radiating circuit and antenna front end match circuit, and wherein, antenna front end match circuit comprises antenna element, and this antenna element is made up of interconnected antenna module and Duplexer (duplexer); Receiving circuit is connected to: the output of Duplexer is connected with the signal input part of central processing unit through Rx Filter (receiving filtration device); Radiating circuit is connected to: the signal output part of central processing unit is connected with the input of Duplexer through Tx Filter (emission filter).And,, also be connected with PA (Power Amplifier, power amplifier) between duplexer and the Tx Filter for the quality that guarantees to transmit.In addition, the circuit sound intermediate frequency partly comprises three tunnel voice outputs and two-way phonetic entry, support hand-held MIC (Microphone, microphone), hand-held Receiver (receiver), hands-free MIC, hands-free Speaker (loud speaker), earphone output, wherein Speaker supports 16 chord bell sounds.But other interfaces comprise the universal input/output interface and the power interface of User Recognition circuit interface, USB interface, serial communication interface expanded application in this circuit, can be used for finishing moving speech communication and data communication.
Cdma mobile terminal is as follows from the circuit working flow process of module: the base band CDMA signal of backward channel is launched from antenna end with 824MHz～849MHz by the radiating circuit modulating transformation; The wireless signal of 869MHz～894MHz that antenna end receives carries out demodulation process by receiving circuit, obtains forward channel base band CDMA signal; Radio circuit provides stable controlled 19.2MHz frequency source simultaneously.
Wherein, the antenna module of antenna element is the R-T unit of wireless signal, and present embodiment connects antenna module by the antenna solder joint on the pcb board.Compatible antennas switch testing and employing high frequency probe mode are tested on the module of present embodiment, and production can be controlled flexibly.The duplexer of antenna element is used for signal is divided into reception and sends part, and the sending and receiving radiofrequency signal is isolated, and minimizing influences each other.
In the present embodiment, in order to reach the better products performance, the QSC6010 of the preferred Qualcomm of chip of central controller; And in order to save the space and to improve performance, memory preferably adopts the memory of MCP (Multi-chipPackage, the encapsulation of multicore sheet) pattern.The encoding and decoding of CDMA signal processing, sound are arranged in the QSC6010 chip, mobile communication is controlled, and this control section comprises the processing of receiving and transmitting signal between mobile phone wireless RF control and base station and is connected to the control etc. of base band such as the coding of the control of mobile phone, voice signal, decoding.And, connection, application and expansion for the ease of module, this cdma mobile terminal is designed to 42 from the total number pins of module, and its distribution mode is: from the both sides of the length direction of module 13 pins are arranged respectively at this cdma mobile terminal, on the both sides of Width 8 pins are arranged respectively.
The above; it only is embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion by described protection range with claim.
Claims (9)
1, a kind of cdma mobile terminal is characterized in that from module, comprises interconnected radio circuit and central processing unit, and described central processing unit also is connected with memory and external interface, wherein,
Described radio circuit, central processing unit, memory and external interface are arranged on the one side of circuit board;
The pin of described external interface be positioned at described circuit board around, adopt the structure in edge metal hole, be arranged on the another side of described circuit board with the corresponding pad of the pin of described external interface.
2, cdma mobile terminal according to claim 1 is from module, it is characterized in that, but described external interface comprises the universal input/output interface and the power interface of User Recognition circuit, audio frequency input/output interface, USB interface, serial communication interface expanded application.
3, cdma mobile terminal according to claim 2 is characterized in that from module, and described cdma mobile terminal also comprises the download and upgrade test point from module, and described download and upgrade is positioned at the one side that described circuit board is provided with pad with test point.
4, cdma mobile terminal according to claim 3 is characterized in that from module, and described radio circuit comprises antenna element, and described antenna element is made up of interconnected antenna module and duplexer, wherein,
The output of described duplexer is connected with the signal input part of described central processing unit through the receiving filtration device;
The signal output part of described central processing unit is connected with the input of described duplexer through the emission filter.
5, cdma mobile terminal according to claim 4 is characterized in that from module, and described antenna module is welded on the described circuit board.
6, cdma mobile terminal according to claim 5 is characterized in that from module, also is connected with power amplifier between described duplexer and the emission filter.
7, cdma mobile terminal according to claim 6 is characterized in that from module, and the chip model of described central controller is QSC6010.
8, cdma mobile terminal according to claim 7 is characterized in that from module, and described memory is the memory of multicore sheet encapsulation mode.
9, according to the described cdma mobile terminal of arbitrary claim in the claim 1 to 8 from module, it is characterized in that, described number of pins is 42, and described pin respectively has 13 pins at described cdma mobile terminal from the both sides of the length direction of module, on the both sides of Width 8 pins is arranged respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201150788U CN201207714Y (en) | 2008-05-15 | 2008-05-15 | Slave module for CDMA mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201150788U CN201207714Y (en) | 2008-05-15 | 2008-05-15 | Slave module for CDMA mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207714Y true CN201207714Y (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201150788U Expired - Fee Related CN201207714Y (en) | 2008-05-15 | 2008-05-15 | Slave module for CDMA mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207714Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215043A (en) * | 2010-04-09 | 2011-10-12 | 国民技术股份有限公司 | Wireless communication module |
| CN106304620A (en) * | 2016-10-12 | 2017-01-04 | 广东欧珀移动通信有限公司 | Pcb board and terminal unit |
| CN106413244A (en) * | 2016-10-25 | 2017-02-15 | 广东欧珀移动通信有限公司 | Printed-circuit board and mobile terminal |
-
2008
- 2008-05-15 CN CNU2008201150788U patent/CN201207714Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215043A (en) * | 2010-04-09 | 2011-10-12 | 国民技术股份有限公司 | Wireless communication module |
| CN106304620A (en) * | 2016-10-12 | 2017-01-04 | 广东欧珀移动通信有限公司 | Pcb board and terminal unit |
| CN106304620B (en) * | 2016-10-12 | 2019-03-29 | Oppo广东移动通信有限公司 | Pcb board and terminal device |
| CN106413244A (en) * | 2016-10-25 | 2017-02-15 | 广东欧珀移动通信有限公司 | Printed-circuit board and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20110515 |