Combo Memory; Audio Concept; Audio Hw Architecture; Internal Microphone - Nokia 6120 classic Service Manual

RM-243
System Module and User Interface

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.
Issue 1 COMPANY CONFIDENTIAL Page 6 –19
Copyright © 2007 Nokia. All rights reserved.