Figure 45 Audio block diagram
Internal audio
The internal audio components are used in these modes:
Hand portable (HP) mode Internal hands free (IHF) mode
Microphone X X
Earpiece X
Speaker X
Internal microphone
The digital internal microphone (B2100) is located near the BB shield. To save current when the microphone
is not needed, its supply voltage is controlled by VDIGIMIC. The Data and Clk lines are directly connected to
RAP3Gv4.
RM-509; RM-510; RM-511
System Module
Issue 2 COMPANY CONFIDENTIAL Page 5 –21
Copyright © 2009 Nokia. All rights reserved.
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