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RM-609
System Module
Figure 61 Internal microphones 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.
The AV headset microphone line is connected to EM ASIC Gazoo/Pearl Mic2 line via AV switch N2001.
Vibra
Vibra is connected to VibraN and VibraP lines of EM ASIC Gazoo/Pearl.
Figure 62 Vibra diagram
AV connector
The AV connector handles both audio and video signals output. It has audio left and right signals separately
(pins 4 and 5) and the microphone signal wired to pin 3.
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