User Guide

Figure 58 Internal earpiece circuitry

Internal speaker

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

listening.

One dynamic 11 x 15mm speaker is connected to Avilmas ASIC’s D-class IHF amplifier outputs HFSpP HFSpN.

Figure 59 Internal speaker

Vibra circuitry

Vibra is used for the vibra alarm function.

The vibra motor is connected to the Avilma ASIC VibraP and VibraN Pulse Width Modulated (PWM) outputs.

Figure 60 Vibra circuitry

RM-465

System Module and User Interface

Page 6 –24 COMPANY CONFIDENTIAL Issue 1