User Guide

• 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

RAP 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 512 Mbit of DDR memory and 1024 Mbit 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 four audio transducers:

• 7x11 mm dynamic earpiece

• Two 11x15 mm dynamic speakers

• 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 module, which is connected to the RAPIDO ASIC supports Bluetooth audio

and FM radio functionality.

RM-176

System Module and User Interface Nokia Customer Care

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