External Earpiece And Microphone; Vibra; Av Connector; Cellular Rf Technical Description - Nokia RM-701 Service Manual

RM-701
System Module

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)
Page 6 – 28 COMPANY CONFIDENTIAL Issue 1
Copyright © 2011 Nokia. All rights reserved.