![Nokia RM-57 Скачать руководство пользователя страница 353](http://html.mh-extra.com/html/nokia/rm-57/rm-57_service-manual_1699439353.webp)
Figure 112 External earpiece circuitry (Pop-Port connected on the right)
Vibra circuitry
Vibra is used for vibra-alarm function.
The vibra motor is connected to the Retu ASIC VibraP and VibraN Pulse Width Modulated (PWM) outputs.
Figure 113 Vibra circuitry
Pop-port
TM
connector
Pop-Port
TM
connector provides a fully differential 4–wire stereo line-level output connection and fully
differential 2-wire mono line-level or microphone level input connection.
The handsfree driver in Retu is meant for the headset.
The output is driven in a fully differential mode. In the fully differential mode, the handsfree pin is the negative
output and the HFCM pin is the positive output. The gain of the handsfree driver in the differential mode is 6 dB.
The earpiece and headset signals are multiplexed so that the outputs cannot be used simultaneously.
RM-57/58
System Module
Nokia Customer Care
Issue 1
Company Confidential
Page 9–27
Copyright ©2005 Nokia. All Rights Reserved.
Содержание RM-57
Страница 327: ...9 System Module Nokia Customer Care Issue 1 Company Confidential Page 9 1 Copyright 2005 Nokia All Rights Reserved ...
Страница 377: ...10 Schematics Nokia Customer Care Issue 1 Company Confidential Page 10 1 Copyright 2005 Nokia All Rights Reserved ...
Страница 391: ...www s manuals com ...