User Guide

• 2.5 V regulator for BB

• Digital control interfaces

• Real time clock with external backup battery

• Two SIM card interfaces

• Stereo audio codecs and amplifiers

• Two DACs for AFC and TxC

• 12-channel "slow" A/D converter

• S/H circuit for VBATT A/D channel

• Buzzer and vibrator drivers

• DPMA driver (H-bridge)

• ECI and AV interface support

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

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 2 Gbit of flash memory.

Audio concept

Audio HW architecture

The functional core of the audio hardware is built around two ASICs: RAPIDO engine ASIC and the mixed signal

ASIC Avilma.

Avilma provides an interface for the transducers and the accessory connector. Integrated handsfree stereo

speakers are driven by a D-class audio amplifier TPA2012D2.

There are three audio transducers:

• 7x11 mm dynamic earpiece

• 11x15 mm dynamic speaker

• Digital MEMS (microelectromechanical systems) microphone

In addition to the audio transducers, Avilma also provides an output for the dynamic vibra component.

All galvanic audio accessories are connected to the AV accessory connector.

A Bluetooth audio and FM radio modules, which are connected to the RAPIDO ASIC supports Bluetooth audio

and FM radio functionality.

RM-244

System Module and User Interface

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