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Internal earpiece
The internal earpiece is used in the HandPortable (HP) call mode. A dynamic 7x11 mm earpiece capsule is
connected to N2200 ASIC’s differential outputs EarP and EarN.
Figure 61 Internal earpiece circuitry
Internal speaker
The internal speaker is used in Internal HandsFree (IHF) call mode.
A dynamic 20 mm speaker is connected to N2200 ASIC’s outputs HFSpP and HFSpN.
The IHF amplifier integrated in EM ASIC N2200 is a Digital Pulse Modulated Amplifier (DPMA).
Figure 62 Internal speaker circuitry
Vibra circuitry
Vibra is used for vibra-alarm function.
The vibra motor is connected to the N2200 ASIC VibraP and VibraN Pulse Width Modulated (PWM) outputs.
RM-88
System Module
Nokia Customer Care
Issue 1
COMPANY CONFIDENTIAL
Page 8 –19
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