User Guide

Figure 57 Internal earpiece circuitry

Internal speakers and vibra circuitry

Internal speaker

Internal speaker is used for Internal HandsFree (IHF) call mode, video call, ringing tones, FM radio and music

listening.

One dynamic 11x15mm speaker is connected to Avilmas ASIC’s D-class IHF amplifier outputs HFSpP HFSpN.

Vibra

Vibra is used for the vibra alarm function. The vibra motor is connected to the AVILMAS ASIC VibraP and VibraN

Pulse Width Modulated (PWM) outputs.

RM-412; RM-413

System Module and User Interface

Page 6 –24 COMPANY CONFIDENTIAL Issue 1