Baseband Description; System Module Block Diagram - Nokia E62 Service Manual

RM-88
System Module Nokia Customer Care

Baseband description

System module block diagram

The device is a quad-band GSM mono-block product with full QWERTY keyboard. It is based on Series 60 UI
Style on the Symbian Operating System (SOS) release (version 9.1).
The device has two antennas; Internal antenna for cellular quad band GSM and BT antenna.
Bluetooth module has its own antenna. System calculations assume 15dB antenna isolation between
Bluetooth and cellular GSM antenna.
Architecture overview
The device is a monoblock quadband GSM/EDGE 850/900/1800/1900 handportable phone running on
Symbian series 60 release 3.0.
Product segment is a Smart phone.
The device baseband is single processor architecture based on CeMEnt G3.1S engine (CeBBo1GSM BB + Ritsa
4.5 RF).
The baseband includes following HW-blocks:
• RAP, GSM EDGE BaseBand ASIC (ARM926EJ-S MCU, Lead3 PH3 DSP)
• N2200 , primary Energy Management ASIC
• N2300, secondary Energy Management ASIC
• T-combo memory, 256Mbit NOR FLASH + 256Mbit DDR-SDRAM + 1Gbit Mux-one Nand combo memory
• Audio (Microphone, Speaker, IHF and external audio)
• EL keyboard backlightning
• Ambient light sensor
• Bottom Connectors (Mini USB-B + 2.5mm Headset Jack + Dynamo DC jack)
• SIM Interface
• BB-RF Interface
• Bluetooth BTPerf 2.3 (BT 2.0 + EDR)
• UI (Oxford QVGA LCD, QWERTY keyboard)
• IR Interface (IrDA, 115.2kbit/s)
• Mini SD Interface (hot swappable)
RF block includes:
• N7505 AHNE RF ASIC (Quad-band GSM functionality based on Ritsa 4.5 engine.)
• N7520 front end module (PA and antenna switch)
• G7500 VCO and G7501 VCXO (38.4MHz)
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