Internal microphone
The digital microphones used are Knopfler and they are connected to Rapu. DigiMics' CLK lines are connected
to Rapu Genio72 and DigiMics' DATA lines are connected to Rapu Genio39.
Figure 61 Internal microphone diagram
External earpiece and microphone
The AV headset earpiece is connected to TPA6140 audio amplifier which is used for high quality audio output
and to guarantee long playback time for accessory use. TPA6140 is connected to Gazoo/Pearl XEarL, XEarLC,
XEarR, XEarRC lines for audio and is controlled via I2C_2 bus by RAPU.
Vibra
Vibra is connected to VibraN and VibraP lines of EM ASIC Gazoo/Pearl.
RM-779
System Module
Issue 1
COMPANY CONFIDENTIAL
Page 6 – 27
Copyright © 2011 Nokia. All rights reserved.
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