User Guide

ASICs

RAPIDO ASIC

Rapido ASIC is a 3G Radio Application Processor. RAM memory is integrated into Rapido.

EM ASIC N2300

The EM ASIC (N2300) includes the following functional blocks:

• Core supply generation

• Charge control circuitry

• Level shifter and regulator for USB/FBUS

• Current gauge for battery current measuring

• LED driver for backlights

• Digital interface (CBUS)

EM ASIC N2200

The EM ASIC (N2200) includes the following functional blocks:

• Start up logic and reset control

• Charger detection

• Battery voltage monitoring

• 32.768kHz clock with external crystal

• Real time clock with external backup battery

• SIM card interface

• Stereo audio codecs and amplifiers

• A/D converter

• Regulators

• Vibra interface

• Digital interface (CBUS)

EMC ASIP (Appcation Specified Integrated Passive) have been integrated inside the ASIC. It includes biasing

passives for microphone , EMC filter for SIM, microphones etc.

Device memories

RAPIDO memories NOR flash and SDRAM

Modem memory consists of 128 Mbit SDRAM and 128 Mbit NOR flash memories.

Combo memory

The application memory of the device consists of NAND/DDR combo memory. The stacked DDR/NAND

application memory has 768 Mbit of DDR memory and 1 Gbit of flash memory.

RM-135

Nokia Customer Care System Module and User Interface

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