CN201491045U - Multifunction GSM system mobile phone main board - Google Patents
Multifunction GSM system mobile phone main board Download PDFInfo
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- CN201491045U CN201491045U CN2009201170786U CN200920117078U CN201491045U CN 201491045 U CN201491045 U CN 201491045U CN 2009201170786 U CN2009201170786 U CN 2009201170786U CN 200920117078 U CN200920117078 U CN 200920117078U CN 201491045 U CN201491045 U CN 201491045U
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Abstract
The utility model relates to the design of a main board of a portable mobile terminal which is a mobile phone and discloses a multifunction GSM system mobile phone main board, comprising a PCB board, the PCB board is provided with an RF functional module, an MPU module and a periphery functional module, data transmission can be carried out between the RF functional module and the MPU module and between the MPU module and the periphery functional module, the periphery functional module comprises a keyboard area, an SIM card base, a microphone and a loudspeaker unit, and the periphery functional module further comprises an FM broadcasting module, a USB interface, a bluetooth, a camera, a power management chip, an LED marquee and a CMMB television module. The distribution of each module in the multifunction GSM system mobile phone main board is compact, mature IC technology is adopted, the reliability is greatly improved; multiple functions are integrated on an IC, the design cost and the manufacturing cost are further reduced, compared with the traditional mobile phone, multiple new functions are added, thereby being adaptive to the increasing multifunction requirement of consumers.
Description
Technical field
The utility model relates to the motherboard design that portable mobile termianl is a mobile phone, relates in particular to a kind of multi-functional GSM standard cell phone mainboard.
Background technology
Along with current development of science and technology, mobile phone has at present been broken through traditional simple functions such as conversation, and its function is extensive day by day, permeates to various fields such as audio-visual, storage, wireless data access terminals gradually.And people also day by day improve the requirement of cell-phone function.Aspect audiovisual, people have been weary of the burdensome inconvenience of wired earphone already, and prefer using simple and convenient wireless transmission method to enjoy high-quality music; People prefer high-resolution more, show that more fine and smooth liquid crystal display screen views and admires picture and film.And these all are the very big challenges to conventional mobile phone.Many times, people wish subsidiary camera function is arranged, and can allow them in time catch excellent drop moment in the life, and wish that its audio-visual quality can keep original flavor to the full extent.Because requirements of one's work, a lot of personages must regular travels to and fro between two cities, and they have to carry two mobile phones local and two cities, destination, and to avoid consuming high mobile phone roaming telephone expenses, this knows clearly to the route band undoubtedly and much bothers.And the mobile phone that a SIM card can only be installed is difficult to address this problem.Possess the appearance of the mobile phone of double-card dual-standby function, improved a good scheme for the solution of this problem undoubtedly.Traditional mobile phone generally can't be listened to FM broadcasting, and FM broadcast radio function is integrated in the mobile phone, and make people can between having a rest, enjoy FM and broadcast, not only convenient but also fashion, this will be again a bright spot of the function of mobile phone.
Traditional mobile phone all is every function of coming operating handset by the button that uses on the keyboard, many times, such mode of operation be not intuitively, inconvenience, this has widened the distance between mobile phone and the user virtually.And the appearance of handset touch panel function, make a lot of operations become directly and lively, the function that simultaneously a lot of conventional keyboard can't realize also realizes thereupon, makes the operation of the mobile phone simple, intuitive that becomes, even very witty, this distance between mobile phone and the user that furthered undoubtedly.
Along with the popularization of CMMB standard TV, this mobile phone function is with gained popularity.No matter people can be in coffee shop, office, or even on the bus in way on and off duty, can both enjoy high-quality CMMB TV programme whenever and wherever possible in the city that has the CMMB signal to cover.Compare the TV signal of traditional pattern standard, the image of CMMB standard TV programme is more clear, the tonequality more beautiful, and signal is more stable, and the program capacity is bigger, and inborn huge advantage is arranged.
And, along with the aggravation of mobile phone market competition, how to reduce the mobile phone research and development time of company, shorten the R﹠D cycle of every money mobile phone, and can put out a new product in the shortest time thereby make fast reaction according to turn of the market, be the target that each cell phone manufacturer is pursued always.
Summary of the invention
The utility model at the conventional mobile phone function singleness, can not satisfy the growing shortcomings such as multi-functional needs of consumer and improve, and provide multi-functional GSM standard cell phone mainboards such as a kind of band bluetooth, shooting, double-card dual-standby, FM broadcasting, touch-screen, CMMB standard TV.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of multi-functional GSM standard cell phone mainboard, comprise pcb board, pcb board is provided with the RF functional module, MPU module and peripheral functional modules, between described RF functional module and the MPU module, all can carry out transfer of data between MPU module and the peripheral functional modules, wherein, the RF functional module comprises the RF antenna, the RF switch, RF power amplifier module and RF data processing module, be provided with filter and RF signal processing chip in the RF data processing module, peripheral functional modules comprises display module, keyboard region, the SIM card deck, microphone and loudspeaker unit, described peripheral functional modules also comprises the FM broadcast module, USB interface, bluetooth, camera, power management chip, LED horse race lamp and CMMB television module, described display module comprises LCD display, LCD chip for driving and touch control chip, described SIM card deck is two, is connected with the double SIM card diverter switch between two SIM card decks.
The RF functional module is used to provide the gsm wireless transfer function, and the data wireless based on the realization of gsm communication agreement and the ground base station of maturation are connected.This module exchanges by realizing data at a high speed between I/Q data/address bus and the MPU module.According to the practical design demand, this module generally is positioned at the apical position of pcb board.Because the RF module will produce a large amount of radiofrequency signals in the course of the work, and other modules are had bigger interference, thus be placed on the top of pcb board, and the additional metal radome is further isolated.
The MPU module adopts popular instantly MTK scheme, mainly comprises central processing unit and storage chip, and central processing unit adopts the MT6225 processor, and storage chip adopts a Da RongliangdeFLASH ﹠amp; PSRAM chip, this module have been born nearly all complex data Processing tasks.Adopt a big advantage of MTK scheme to be the maximized integrated function of numerous complicated on single chips, as usb data connection, key scan, IRDA, LCDDriver, power management etc.This is the compression of complete machine cost, and problems such as the raising of fabrication reliability provide good outlet.This module generally is positioned at the centre position of pcb board, MT6225 processor and FLASH﹠amp; Both are close as far as possible for the PSRAM chip, so that complete and reliable in the data transmission procedure.
As preferably, described LCD display, LCD chip for driving and touch the front that control chip is located at pcb board; Described RF functional module, loudspeaker unit are located at the apical position at the pcb board back side, and USB interface, camera are located at the upper end position at the pcb board back side, and the MPU module is located at the centre position at the pcb board back side, and microphone is located at the bottom position at the pcb board back side; Described CMMB television module is located at the pcb board bottom position.Wherein, microphone is located at the bottom position of pcb board, so that gather user's voice signal; Loudspeaker unit matches with the phone housing structure, realizes the best of its tonequality; Camera is located at the upper end position of pcb board, the viewing operation when being convenient to the operator and making a video recording.In order to obtain higher signal to noise ratio, the CMMB television module of this cell phone mainboard is located at the bottom of pcb board, with the RF module of GSM as far as possible away from.
As preferably, be integrated with TF card read-write interface on the described MT6225 processor, be used to connect the TF card, the TF card can be behind the SD ticket converter, when the SD card uses.The TF card is minimum on the market flash card, is applicable to multinomial multimedia application.Because the MT6225 processor directly and the TF card connection, the reading rate of TF card has been obtained maximum raising.
The utility model is rational in infrastructure, each module placement compactness, owing to mostly adopt ripe IC technology, reliability is greatly improved; And numerous functions are integrated on a slice IC, further reduced design cost and manufacturing cost; Adopt high-end design tool, the research and development speed of mobile phone is faster, and performance is higher, and test is more convenient with maintenance; Be different from conventional mobile phone simultaneously, increased multiple new functions such as bluetooth, shooting, double-card dual-standby, FM broadcasting, touch-screen, CMMB standard TV, adapted to the growing multi-functional needs of consumer.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Fig. 2 is the structural representation (pcb board front) of the utility model embodiment.
Fig. 3 is the structural representation (the pcb board back side) of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Embodiment as shown in Figure 1 to Figure 3, a kind of multi-functional GSM standard cell phone mainboard, comprise pcb board 19, pcb board 19 is provided with RF functional module 101, MPU module 102 and peripheral functional modules, between described RF functional module 101 and the MPU module 102, all can carry out transfer of data between MPU module 102 and the peripheral functional modules, wherein, RF functional module 101 comprises RF antenna 5, RF switch 6, RF power amplifier module 7 and RF data processing module, be provided with filter 8 and RF signal processing chip in the RF data processing module, RF functional module 101 is positioned at the apical position of pcb board 19, for avoiding it that other modules are produced bigger interference, its additional metal radome is further isolated.
Peripheral functional modules comprises display module, keyboard region 3, SIM card deck 20, microphone 1 and loudspeaker unit 2, FM broadcast module 16, usb 17, bluetooth 11, camera 14, CMMB television module 12, power management chip 13 and LED horse race lamp 18, described display module comprises LCD display 41, LCD chip for driving 9 and touches control chip 4, described SIM card deck 20 is two, is connected with double SIM card diverter switch 10 between two SIM card decks 20.
Circuit working principle of the present utility model after the RF signal enters RF antenna 5, is selected through the switching of RF switch 6 as shown in Figure 1, by filter 8, enters the RF signal processing chip.This chip finished the RF signal basic handling, convert thereof into i/q signal after, be transferred to MPU module (MT6225 processor) by the I/Q data/address bus and carry out further data processing.
Because the RF signal belongs to the electromagnetic wave of high band, with the transmission of the general low frequency signal of telecommunication in the loop in essence difference is arranged, thus need impedance matching between RF antenna 5 and the level loop, back, so that the realization optimal data is transmitted.And the outside emission of RF signal then need be passed through this chips of RF power amplifier module (RFPA).In the moment of RF emission, its peak power is bigger, and its power supply is had special requirement.Equally, the loop between RFPA chip and the antenna 5 also needs special impedance matching link, so that realize the optimal data transmission.
The function of bluetooth 11, (MT6601) realizes by the bluetooth specific chip.Functions such as radiofrequency signal transmission-receiving function, bluetooth baseband signal processing, pcm encoder that MT6601 is integrated, and the sophisticated software interface is provided are integrated, the Bluetooth chips cheaply of a height.Realize the transmission of voice signal here, between MT6601 and the baseband chip MT6225 by the PCM holding wire.
The special-purpose YUV standard interface of MT6225 is for the realization of camera function provides convenience.The view data that camera 14 is gathered transfers to the further processing that MT6225 carries out data by the YUV interface.
The double-card dual-standby function is realized by MT6302.MT6302 connects two SIM card, by one tunnel SIM card data wire and the MT6225 realization transfer of data of special use.MT6302 has realized only taking under the condition of a RF module, the function of two SIM card standbies simultaneously.
The LCD module mainly is made up of LCD display 41, LCD chip for driving 9 and touch control chip 4.Use the 16bit data wire to link to each other between LCD display 41 and the MT6225, realize the transmission of data in enormous quantities.Use the advantage of this connected mode to be to realize the high speed brush property of real content, so that support the shooting of this mobile phone playing video file or realization dynamic image.Touch the analog signal of control chip analysis from touch-screen, the data after will analyzing again are transferred to MT6225 by iic bus, realize the identification of touch action.Backlight driving chip is used to drive several LEDs that LCD display 41 carries, and makes it to send the even brightness white light.By serial data bus, MT6225 can control multistage different luminosity, perhaps realizes the fade effect of brightness.Above-mentioned three chips cooperatively interact, and have realized functions such as image demonstration, user's operating data.
Because MT6225 is furnished with special-purpose keyboard scan interface, so that the realization of keyboard circuit also becomes is particularly simple.Keyboard interface is made up of the rank scanning line, directly towards button.Since keyboard will be directly be used to contact, so handled its ESD problem.
The function of FM broadcast module 16 is finished by the RDA5800 chip.Functions such as tuning, the rectification of FM, power amplification all are integrated in this chip and realize.Between RDA5800 and the MPU module also is to communicate by letter by iic bus.MPU module 102 can realize the function such as tuning of FM frequency.The FM antenna is realized by multiplexing earphone cord, and antenna that need not be extra.
The function of CMMB television module 12 realizes relatively complicated, mainly is made of FC2550, TP3001B and these three high integrated IC of TCC7920S.Wherein, FC2550 is bearing the work of RF signal tuning, and the frequency signal of needs is transferred to the next stage chip; TP3001B carries out demodulation with the signal that FC2550 transmits; The TCC7920S chip is the TP3001B signal decoding, and signal transferred to the MPU module or directly drive LCD shows.
The effect of power management in this cell phone mainboard circuit is considerable.Power management chip 13 in this circuit mainly is made up of MT6305 and some other LDO chips.MT6305 is integrated battery charging management, SIM card interface, several LDO output function.MT6305 cooperates the ADC function of MT6225, has realized simple Charge Management, the charging of compatible lithium battery and nickel-cadmium cell.The LDO output function of MT6305 is MT6225, FLASH﹠amp; Modules such as PSRAM, RF module, SIM, real-time clock provide power supply.Other many LDO are respectively applied for the independently-powered of each module, to adapt to different demands such as supply power voltage; MPU can the control module powered switch, in time closes this module when certain module is obsolete again, farthest realizes the minimum of Overall Power Consumption.
Large capacity I F card read-write interface also is integrated among the MT6225.Owing to directly be connected with TF card 15, reading rate has obtained maximum raising.Bright and colourful LED ticker functionality then is to realize by special LED chip for driving SN3726 chip.SN3726 drives the LED of different colours with current constant mode, and it is scalable that the size by the LED electric current only needs an outside resistance that be connect.SN3726 links to each other with the MPU module by serial data interface, realizes the light on and off control of certain LED.Light on and off order and frequency by reasonable adjustment different LED have realized that the LED of different fancy flashes.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (6)
1. multi-functional GSM standard cell phone mainboard, comprise pcb board (19), pcb board (19) is provided with RF functional module (101), MPU module (102) and peripheral functional modules, between described RF functional module (101) and the MPU module (102), all can carry out transfer of data between MPU module (102) and the peripheral functional modules, wherein, RF functional module (101) comprises RF antenna (5), RF switch (6), RF power amplifier module (7) and RF data processing module, peripheral functional modules comprises display module, keyboard region (3), SIM card deck (20), microphone (1) and loudspeaker unit (2), it is characterized in that: described peripheral functional modules also comprises FM broadcast module (16), USB interface (17), bluetooth (11), camera (14), power management chip (13), LED horse race lamp (18) and CMMB television module (12), described display module comprises LCD display (41), LCD chip for driving (9) and touch control chip (4), described SIM card deck (20) is two, is connected with double SIM card diverter switch (10) between two SIM card decks (20).
2. a kind of multi-functional GSM standard cell phone mainboard according to claim 1 is characterized in that: described LCD display (41), LCD chip for driving (9) and touch control chip (4) are located at the front of pcb board (19); Described RF functional module (101), loudspeaker unit (2) are located at the apical position at pcb board (19) back side, USB interface (17), camera (14) are located at the upper end position at pcb board (19) back side, MPU module (102) is located at the centre position at pcb board (19) back side, and microphone (1) is located at the bottom position at pcb board (19) back side; Described CMMB television module (12) is located at pcb board (19) bottom position.
3. a kind of multi-functional GSM standard cell phone mainboard according to claim 1, it is characterized in that: described MPU module (102) comprises central processing unit and storage chip.
4. a kind of multi-functional GSM standard cell phone mainboard according to claim 3 is characterized in that: be connected with TF card (15) on the described central processing unit.
5. a kind of multi-functional GSM standard cell phone mainboard according to claim 1 and 2, it is characterized in that: described RF functional module (101) is provided with metallic shield.
6. a kind of multi-functional GSM standard cell phone mainboard according to claim 5 is characterized in that: be provided with filter (8) and RF signal processing chip in the described RF data processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170786U CN201491045U (en) | 2009-04-09 | 2009-04-09 | Multifunction GSM system mobile phone main board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201170786U CN201491045U (en) | 2009-04-09 | 2009-04-09 | Multifunction GSM system mobile phone main board |
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| Publication Number | Publication Date |
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| CN201491045U true CN201491045U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201170786U Expired - Fee Related CN201491045U (en) | 2009-04-09 | 2009-04-09 | Multifunction GSM system mobile phone main board |
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| CN (1) | CN201491045U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264062A (en) * | 2011-07-13 | 2011-11-30 | 深圳市金立通信设备有限公司 | System and method for hiding single card in dual-card double-standby mobile phone |
| CN103024102A (en) * | 2011-09-20 | 2013-04-03 | 联想移动通信科技有限公司 | Flip mobile communication terminal |
-
2009
- 2009-04-09 CN CN2009201170786U patent/CN201491045U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264062A (en) * | 2011-07-13 | 2011-11-30 | 深圳市金立通信设备有限公司 | System and method for hiding single card in dual-card double-standby mobile phone |
| CN103024102A (en) * | 2011-09-20 | 2013-04-03 | 联想移动通信科技有限公司 | Flip mobile communication terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Ningbo Maxis communications equipment Co. Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120409 |