Mobile Phone Introduction
Mobile Phone Introduction
Embedded Files
Mobile Phone
Mobile Phone
A telephone with access to a cellular radio system so it can be used over a wide area, without a physical connection to a network.
1. How does a mobile phone work?
As you chat away, your phone converts your voice into an electrical signal, which is then transmitted as radio waves and converted back into sound by your friend's phone. A basic mobile phone is therefore little more than a combined radio transmitter and a radio receiver, quite similar to a walkies-talkie or CB radio.
Feature phone Vs Smart phone
Feature phone Vs Smart phone
Development of network technology
Development of network technology
Content
Content
- 1.Basic Knowledge
- 2. Software Introduction
- 3. Hardware Introduction
- 4. Accessory Introduction
Category
Category
Feature phone:
Feature phone:
- A basic mobile phone, the function is simpler than smart phone, like make calls and receive calls.
Smart phone:
Smart phone:
- Like PC, have independent operating system and independent running space, user can install and uninstall the game, navigation and other applications, and can achieve wireless network through mobile communication network.
tablets
tablets
Structure of mobile phone
Structure of mobile phone
Bar Phone
Bar Phone
Slide Phone
Slide Phone
Feature Phone
Feature Phone
flip phone
flip phone
Constituent Part
Constituent Part
Hardware
Hardware
Software
Software
Operating System
Operating System
Operating System
Operating System
A mobile operating system, also called a mobile OS, is an operating system that is specifically designed to run on mobile devices such as mobile phones, smartphones, PDAs, tablet computers and other handheld devices.
Operating System, abbreviation OS: It is the program to manage and control the hardware and software resources of the device, all applications must operate on the OS.
The operating system is the interface between the user and the mobile phone, and the interface between the mobile phone hardware and other software.
Mobile phone OS is the OS that operate on the mobile phone.
Main mobile phone OS:
Main mobile phone OS:
Android, IOS, Blackberry, Symbian, Windows Phone, Windows Mobile, android and IOS are the most popular mobile phone OS now.
Application
Application
Application:
Application:
Mainly refers to the software installed on the smart phone to improve the shortage and personalization of the original system.
E.g. Wechat, whatsAPP, Facebook imo, and so on.
Hardware Introduction
Hardware Introduction
Explode View of Feature Phone
Explode View of Feature Phone
ACCESSORIES (YOU MUST ASSEMBLE IT BACK)
ACCESSORIES (YOU MUST ASSEMBLE IT BACK)
PCBA MAIN BOARD COMPONENTS
PCBA MAIN BOARD COMPONENTS
Explode View of Smart Phone
Explode View of Smart Phone
PCBA MAINBOARD COMPONENTS
PCBA MAINBOARD COMPONENTS
SMD:
SMD:
Surface-mount technology (SMT) is a method for producing electronic circuits in which the components are mounted or placed directly onto the surface of printed circuit boards (PCBs). An electronic device so made is called a surface-mount device (SMD)
SMD Component
Accessory Introduction
Accessory Introduction
Up Housing :
Up Housing :
Also called Front Housing, A Housing. Together with up housing and other components.
Material Category:
- Plastic
- Metallic
- Glass
- Ceram
- Wood
Low Housing :
Low Housing :
Also called Bottom Housing. Together with Low housing and other components.
Material Category:
- Plastic
- Metallic
- Wood
Battery Cover:
Battery Cover:
The main function: protection, decoration and beautification.
Material Category:
- Plastic
- Metallic
- Glass
- Ceram
- Wood
Keypad:
Keypad:
An input device composed of keys，can use it to input words, figure, character.
Types:
- Multi-tap
- Qwerty /AZERTY
Touch Screen:
Touch Screen:
An input device that is sensitive to human touch, allowing the user to interact by touching pictures and words on the screen.
Category:
- Capacitive
- Resistive
Screen:
Screen:
A display device that made of glass with tiny crystal pixel, can emits light displaying certain information.
Category:
- LCD
- OLED
Screen Resolution:
The resolution is the number of pixels that are displayed on the screen.
E.g. Resolution160×128=160 pixels(Horizontal) x128 pixels(vertical).
For a same size screen, if the resolution is bigger, the image will be more clear.
3in1 :
3in1 :
A combination of the Up Housing , LCD, and touch screen. It makes the components more concentrated, then makes the mobile phone thinner.
Receiver:
Receiver:
A device for transmitting sound, a kind of loudspeaker.
Use it to receive the sound during calls.
Normally found it on the top of the screen.
Speaker:
Speaker:
A device made sound.
Speaker is used to emit sound and music. If the mobile phone is hand free, the sound is emitted from speaker.
Normally located at the bottom of the phone
Fingerprint Module:
Fingerprint Module:
A device for collecting fingerprints that can be encrypted by setting the fingerprint.
The fingerprint module: front press, back press, front slide, back slide, and back touch.
APPLE(front press)，Samsung (front slide)，MEIZU(back press)，vivo（back press），HUWEI(back touch).
Camera Module:
Camera Module:
A device for collecting picture, used to take picture or take video.
Normally, smart phone has two camera: front camera and back camera, back camera is main camera.
Battery:
Battery:
A device for storing energy, used to provide power to the PCBA circuits and components.
The standard mobile phone battery Voltage Range is around 3.7V.
Type:
•Built-in battery.
•Removable battery.
mAh is a unit of battery capacity. Normally, if the capacity is bigger, the standby time is longer .
Built-in battery
Removable Battery
FPC:
FPC:
Flexible Printed Circuit connector, mainly use it to connect the mainboard and the sub board, or the 3 in 1 and the mainboard.
Coaxial Cable:
Coaxial Cable:
Mainly used to transmit radio frequency signals.
Normally, use it to connect the mainboard and the sub board.
MAIN BOARD and Sub Board
MAIN BOARD and Sub Board
Main Board
Main Board
Sub board
Sub board
CPU（Central Processing Unit）:
CPU（Central Processing Unit）:
The control center system of the whole mobile phone. The microprocessor control mobile phone by running the software and calling the database in the memory.
Main CPU manufacturer:
Qualcomm, Mediatek, Spreadtrum, Samsung, Intel, Hisilicon.
Memory:
Memory:
A chip used to store data, the data include system data, APP data and user data.
Mobile phone memory type: RAM and ROM.
Main memory manufacturer:
Samsung, SanDisk, Hynix, TOSHIBA and so on.
PMU:
PMU:
Power Manager Unite, mainly manage the power of mobile phone. E.g. Intelligent charge management for battery, over voltage, over current, over temperature, short circuit protection, provide a variety of voltage for mobile phone.
Main PMU manufacturer:
Qualcomm, Mediatek, Intel.
USB Connect:
USB Connect:
Universal Serial Bus Connector, Data connection interface between mobile phone and external equipment, also is charging interface, used for charging and data transfer.
Main USB Connect type:
Mini USB, Micro USB, Type-C USB, lightning
Earphone Connector:
Earphone Connector:
Connection interface between headphones and mobile phones, used for connecting earphone.
Main Earphone Connector specification :
-3.5mm
Battery Connector:
Battery Connector:
Connection interface between battery and PCBA, main used for removable battery mobile phone.
SIM Card Slot:
SIM Card Slot:
Connection interface between SIM card and mobile phone, used for connect SIM card.
Main SIM Card Type:
- Self projectile.
- Clamshell.
- Drawer.
SD Card Slot:
SD Card Slot:
Connection interface between SD card and mobile phone, used for connecting SD card.
Vibrator:
Vibrator:
Also called Motor, a small vibratory motor applied to the mobile phone, used for producing vibration.
Microphone:
Microphone:
Also called mouthpiece or MIC, an energy converter that converts sound signals into electrical signals.
Used for inputting sound, such as recording, calling, etc.
ZIF Connector:
ZIF Connector:
Zero Insertion Force Connector, used for connecting two components, e.g. connect LCD and main board.
BTB Connector:
BTB Connector:
Board To Board Connector, used for connecting the two component, e.g. connect the camera and main board.
Accessory Introduction
Accessory Introduction
Earphone:
Earphone:
A device for transmitting sound. It also acts as an antenna on a mobile phone.
Used for listening music, making calls and listening radio.
Category:
- Wired earphone
- Bluetooth earphone
Data Cable:
Data Cable:
Used for charging and transmitting data.
Category:
- Mini USB cable
- Micro USB cable
- Type-C USB cable
Mini USB
Micro USB
Type -C USB
Charger:
Charger:
Used for charging.
Charger Type:
-Normal charger
-Quick charger
Input: 100-240V~50/60Hz 200mA
Means the charger works in the 100-240V.
Output: 5.0V==1.0A
The output voltage and current of the charger.
OTG Cable:
OTG Cable:
OTG(On-The-Go), it is a technology developed in recent years. It is mainly used in the connection between various devices or mobile phone to exchange data.
E.g. mobile phone can read the data of flash driver by OTG cable.
Holster:
Holster:
Used for protection, protect display from broken or scratch, while realize simple intelligent functions. e.g. closing the holster can hang up automatically.
Screen Protector:
Screen Protector:
Used for protecting the display.
Please choose the matched screen protector which has a hole on the sensor part, avoid to cover the sensor.
TF Card:
TF Card:
Trans-flash Card, also called Micro SD Card, as an external memory of the mobile phone.
SIM Card:
SIM Card:
Subscriber Identification Module Card, used for realize the communication function of the mobile phone.
Category:
Mini-SIM Card: 25mm×15mm×0.8mm.
Micro SIM Card: 12x15mm×0.8mm.
Nano SIM Card: 12.3mm×8.8mm×0.7mm
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