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.
Figure 79 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.
Figure 80 AV connector
The AVVideoControl signal handles microphone usage of the AV connector. The plug detection signal handles
the AV connector plug detection with HeadDet signal from EM ASIC.
Cellular RF technical description
RF block
Linko RF consists of the following key components:
•
Älli (Transceiver RF Asic)
•
Nitro (RF power management Asic)
•
Ukko PA
•
QuBBE (Front end module)
RM-701
System Module
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COMPANY CONFIDENTIAL
Issue 1
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