Internal Earpiece; Internal Speaker - Nokia n80 User Manual

RM-91; RM-92
System Module Nokia Customer Care
Accessory audio mode is automatically enabled/disabled during connection/disconnection of dedicated
phone accessories.
A dynamic 7mmx11mm earpiece capsule is connected directly to the EM ASIC (N2200) differential outputs
EarP and EarN through the Slide flexi and the UI PWB.
Figure 101 External microphone circuitry (system connector connects to the right side)

Internal earpiece

The internal earpiece is used in the HandPortable (HP) call mode. A dynamic 7mmx11mm earpiece capsule
is connected directly to the EM ASIC (N2200) differential outputs EarP and EarN through the Slide flexi and
the UI PWB.

Internal speaker

The internal speaker is used in Internal HandsFree (IHF) call mode.
A dynamic 16 mm speaker is connected to the EM ASIC (N2200) outputs HFSpP and HFSpN.
The IHF amplifier integrated in N2200 is a Digital Pulse Modulated Amplifier (DPMA).
Figure 102 Internal speaker circuitry
Issue 1 COMPANY CONFIDENTIAL Page 9 –25
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