Every Mistake is an Opportunity to Learn Something New

Thursday, December 8, 2011

Components in side a Mobile Phone

Battery
Function as a source of electricity Flow / Voltage required to provide electric current to the Aircraft phone
EEPROM 
Main data storage area or a permanent factory data, and does not work with or the absence of electric current on the phone, because the power has withdrawn. While lying there on th

Regulator IC
To set the voltage, so that can be arranged according to the needs of each relevant component, and also as control from IC Charging is controlled by the CPU.

IC CHARGE
Components that work otomat at the time of charging and it works only for the voltage Battry which is controlled by the CPU through IC Regulator

IC AUDIO
As a function of the voice signal processing incoming RF IC's, and be forwarded to the Speaker, to strengthen the sound vibrations that have been changed into vibration Mic electricity and forwarded to RF IC, run the command from the CPU and the IC, there are Audio PCM (Pulse Code Module) and EEPROM read function code that signals coming from the operator to adjust the IMEI Ponsel also store data that is permanent, such as: IMEI, Phone Code, Sec.Code



LCD (Display Liquit Cell)
This component is functioning as a tool yanga will display all the activities / activities of the Aircraft on the phone

Key Pad
This component is functioning as a tool that provides the data to the CPU to the process and will be sent to other components related to the Aircraft phone

Interface IC
Function as a data controller by the CPU for Vibrator, buzzer, lights and a switch in the automatic phone Aircraft






UEM Description
In the UEM, there are several important roles as the Energy Management Ponsel. Unlike the Nokia DCT3, UEM is some combination of ASICs, such as: CCONT, COBBA, chaps and UI DRIVERS.

UEM stands for Universal Energy Management, in accordance with his name, UEM has several functions that are very complex, including:

Crystal oscillator (32 kHz)

Each system Ponsel akan Oscilator found that the small beat was able to 32KHz,. UEM that will provide voltage control and Crystal Oscilator to be next to the UPP.

32 kHz RC oscillator Startup

When the phone is in the Power-down, from the RF Processor Clock can not be given to UPP, so the phone can power-up needed for Logic System Clock to the UPP. Required for this purpose Sleep Clock generated by Crystal Oscilator 32 kHz.

Real time clock logic

Clock, Date, Alarm Clock Logic required given by Cristal Oscilator 32kHz.


Regulator Baseband & RF
UEM is given by the main battery voltage of 3.7 Volt (VBATT). UEM has role as distribution voltage / regulator to the system based on the needs of all the required voltage on each system.

Baseband Regulator:

§ VCORE, the need for programming voltage around 1.0 - 1.8 Volt - 200mA to UPP (VCORE DSP & VCORE MCU)
§ vana, to provide voltage of 2.8 Volt - 80mA analog system to function (Btemp, VCXO Temp)
§ VIO, give tengan of 1.8 Volt - 150mA for Logic I / Os (Input / Output Logic: Level Shifter MMC, IR, IC & Flash SDRAM, Bluetooth, LCD,) and UEM Logic.
§ VFLASH1, to provide primary voltage of 2.8 Volt - 70mA to IR, Bluetooth, LCD, LED drivers and voltage to the BSI.
§ VFLASH2/VAUX, to provide voltage of 2.8 Volt - 40mA for FM Radio and other Accesories.
§ VSIM, provide voltage of 1.8 - 3.0 Volt - 25mA for SIM Card

Regulator RF:

§ VR1, to provide voltage of 4.75 Volt - 10 mA to the VCP
§ VR2, provide voltage of 2.78 Volt - 100 mA to: VRF_TX, MODOUTP_G_TX, MODOUTM_G_TX, MODOUTP_P_TX, MODOUTM_P_TX,
§ VR3, to provide voltage of 2.78 Volt - 20 mA to: VDIG, Clock Out VCTXO (Osc 26MHz)
§ VR4, provide voltage of 2.78 Volt - 50 mA to: VRF_RX, VF_RX, VPAB_VLNA
§ VR5, provide voltage of 2.78 Volt - 50 mA to VPLL, VLO, VPRE,
§ VR6, provide voltage of 2.78 Volt - 50 mA to VRXBB
§ VR7, to provide voltage of 2.78 Volt - 45 mA to: VCO,

Charging functions
Battery Ponsel charging process is controlled by UEM. UEM has been store inside Charging Control that serves as the battery charging process. Mobile phone will automatically disconnect from the current to the battery charger when the battery voltage has reached the maximum voltage Charger although still connected to the Mobile, Battery voltage if the voltage under the maximum flow from the charger will continue to be given to the Battery.

11-channel A / D converter (MCU controlled)

UEM stored in the 11Channels Analog to Digital Converter used for the bandgap reference and voltage reference, this section will measure the BSI, Btemp, Vcharge.
oBattery Voltage Measurement A / D Channel (Internal)
oCharger Voltage Measurement A / D Channel (Internal)
oCharger Current Measurement A / D Channel (External)
oBattery Temperature Measurement A / D Channel (External)
oBattery Size Measurement A / D Channel (External)
OLED Temperature measurement A / D Channel (External)

Interface FBUS and MBUS
FBUS & MBUS is used to transfer data from computer to mobile phones, such as the process (Flash Programming), File Manager, etc.. The data will then be signed in to UPP and Flash IC.
Security Logic (Watchdog)
Watchdog stored in the UEM, the first is used for controlling system power-on and power-down. The two blocks used for security and storage IMEI, IMEI Watchdog akan control that is in the ROM with the UEM IMEI stored in the IC Flash, if there is a difference between the IMEI in UEM IMEI and IMEI in Flash then do akan Watchdog Power-Down within 32mS.

FLASH memory for code IMEI
UEM is available in the ROM that is used to store data IMEI. Nature of data storage is IMEI OTP (One Time Programming) where IMEI data can be written only once and can not be removed or replaced, because the former UEM IMEI or ever written can not be used to Ponsel the other except when the IMEI is in the IC Flash can be equated with the IMEI that is on UEM (Calulate Flash), this material is described in Chapter akan Software.
When the ROM is in the UEM is problematic or Corupt then this is UEM can not be used again and can not be repaired again, will generally display the IMEI ????????? where the IMEI is on UEM IMEI is different from that it should even though there is only one number that is different.
IR interface level shifters
Used for the driver and the regulator Infra red, data is forwarded to the akn next UPP.

Interface LED, buzzer and vibrator
Vibrator, Keyboad LED, LED LCD is controlled by the Driver UI Subsystem resides in UEM. UI commands to the driver is provided by the UPP, UPP only give a very low voltage of the driver is required to provide adequate flow to the Vibrator, Keyboad LED, LED LCD.

Audio codec
Earphone, Microphone, IHF Speaker, Handsfree work because there is a subsystem Audio Codec stored on UEM. Subsystem is working to change the data signal into digital signal information Audio, so that the audio signal can be heard by human needs strengthening (Audio Amplyfier) before forwarded to the Speaker and Microphone, Audio signal has frequency of 20Hz to 20kHz.

SIM interface
SIM Card is the active components that have a microchip inside, each of the active components required supply voltage to him, voltage SIM card provided by the UEM's Baseband Subsystem Regulator of 1.8 Volt - 3Volt, while the SIM Clock, Reset SIM, SIM I / O data provided through the subsystem interface, which the store has the SIM Interface Detector SIM, SIM and SIM Driver IF IF.

Serial control interface (Cbus & Dbus Controled)
This section will control the use of the data transmission interface between the UEM and UPP are applied through CBUS and DBUS to MCU Subsystem stored in the UPP.

Auxiliary A / D converted (DSP controlled)

As a tool for bantu konfersi analog signal into digital signal that is used to control DSP Subsystem stored in the UPP, this section will play a role in: Digital Speech Processing and PDM Coded Audio.

RF interface converters
We have previously understood that the RF module has the analog signal while Baseband digital characters have, so that the second module is able to sustain one another, needed a conversion or translation signal into analog signal digital (A / D converter) and digital signal into analog signal ( D / A Converter). RF Interface Converter also called Multy Mode Converter which is a series between the RF module with UPP.

UPP Description
Processor generation to the phone 4 (DCT4) using UPP (Universal Phone Processor) as the center of all activities computerization. Processor is the brain of the system of the mobile phone will make the coordination of all functions of the phone also includes instructions terprogram therein.

Technology continues to develop Nokia DCT4, WD2 and Tiku is the development of technology DCT4. The difference is the type of Proccesor used and the internal memory capacity large enough. UPP-WD2 Tiku and can process data more quickly rather UPP DCT4, which can facilitate features a more sophisticated, such as Symbian operating system, access GPRS Class 10 (EDGE / BB4.5), Multy Task, TFT LCD, resolution until 2mega pixel camera, MMS, polyphonic Ringtone to 48channel, MP3 player, Bluetooth, external memory (MMC Support), etc..
UPP Nokia DCT4, WD2 and Tiku basically have the same structure, which distinguishes only specification: ARM, DSP Core (LEAD3) and RAM cache stored in the UPP, of course RAM and ROM specifications stored in the UPP will also differ from one another. UPP has several functions, including:

BRAIN
This section is the main brain of Microprocessor phone, this section has two functions:

MCU Subsystem
Subsystem MCU (Micro Controller Unit) is processed by Microprocessor ARM (Advanced RISC Machines) and supported by: MCU ROM, RAM Cache, DMA (Direct Memory Access) memory and IF.

DSP Subsystem
DSP Subsystem (Digital Signal Processing) block is processed by LEAD (Low power DSP Enhanced Architecture) is used to process Digital Application (A-DSP) and Digital Cellular (C-DSP). This section will set the data traffic information on the overall system of the phone.

Brain Peripherals
This section will connect all the commands from the MCU and the DSP subsystem to the Body.

Performance MCU and DSP subsystem is highly dependent of the cache RAM is stored in the UPP, Nokia WD2 Tiku and have the RAM cache is big enough, about 8-16Mbit. Cache RAM is a support unit. All commands that are frequently used by the UPP will be stored temporarily in this section. With the Cache RAM, UPP does not need to call the same to the other. Thus, the time needed to run the commands can be important, so that the speed of execution is better and faster.

BODY
The entire system of all mobile phone controlled by Microprocessor. Body is part of the Microprocessor that act as the executor of the Brain. Body parts also function as a Digital Control Logic as follows:
Function
Description

ACCIF
Interface to transfer data from aksesories: eg from infrared and cable Fbus / Mbus connecting to the computer to perform the data transfer from phone to computer.
SIMIF
SIM Card Interface. Reading data from the sim card eg SIM ID, and storage of SMS Phone Book, etc..

UIF
1. Interface audio signal to the earphone and microphone
2. As the LCD interface and Keyboard Interface
3. Codec also be used for the camera

Pup
Used for data transfer software MCU and DSP external akan stored in external memory (Flash IC) Fbus connection or via Mbus. Suppose the phone in Flash, data from the computer that is connected to the phone Fbus akan received by Blok pup's Microprocessor ago Ponsel akan stored in the IC flash.

CTSI
This section is used for Clock Management for: PURX, Clocking, timing, Sleep Clock, etc..

SCU
Control IF / RF module to RFbus. This section is used to control the frequency of routes that will be locked to the Base Station by RF Module (PLL).
MFI, GPRS CIP, RXModem
The three blocks together is used to receive data and provide information to the RF module, but will be required before konfersi D / A - A / D. This section also determines the speed of data transfer, eg for access or GPRS can also be used as modem.

UPP can work when you've given voltage of 1.5V is provided by the Regulator and VCORE Logic voltage (VIO) of 1.8 Volt dibeikan by the UEM. The initial booting process, UPP need of 32KHz Clock (Sleep Mode), while the main Clock provided by VCTCXO of RF Processor at 13MHz.








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