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 speaker
is driven by Avilma.
There are three audio transducers:
• 7x11 mm dynamic earpiece
• 11x15 mm dynamic speaker
• Analogue 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.
Figure 44 Audio block diagram
Internal microphone
Internal microphone is used for HandPortable (HP) and Internal HandsFree (IHF) call modes.
RM-243
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 6 –19
Copyright © 2007 Nokia. All rights reserved.
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