Figure 81 Audio system block
Internal microphone
The internal microphone is used for HandPortable (HP) and Internal HandsFree (IHF) call modes. A digital
microphone data and clock line are connected to Rapidoyawe and operating voltage is received from Avilma.
Figure 82 Internal microphone
Internal earpiece
Internal earpiece is used for the HandPortable (HP) call mode. A dynamic 5x10 mm earpiece capsule is
Connected to Avilma ASIC’s differential output EarP and EarN.
RM-505; RM-506
System Module and User Interface
Issue 1 COMPANY CONFIDENTIAL Page 8 –33
Copyright © 2009 Nokia. All rights reserved.
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