User Guide

External microphone

Galvanic accessories are connected to the system connector.

The accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated

phone accessories.

Figure 75 External microphone circuitry (Pop-Port connects to the right side)

Internal earpiece

The internal earpiece is used in the HandPortable (HP) call mode. A dynamic 8 mm earpiece capsule is

connected to N2200 differential outputs EarP and EarN.

Figure 76 Internal earpiece circuitry

Internal speaker

The internal speaker is used in Internal HandsFree (IHF) call mode.

A dynamic 16 mm speaker is connected to N2200 outputs HFSpP and HFSpN.

The IHF amplifier integrated in N2200 is a Digital Pulse Modulated Amplifier (DPMA).

RM-49

System Module Nokia Customer Care

Issue 1 COMPANY CONFIDENTIAL Page 8 –19