User Guide

Figure 74 Internal microphone

External microphone

Galvanic accessories are connected to the system connector (Pop-Port

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

phone accessories.

External microphone circuitry is biased by EM ASIC N2200 ASIC MicB2 bias voltage (inside EM ASIC N2200 ASIP).

The circuitry provides a symmetrical connection for the microphone from the Pop-Port

connections, XMICN

and XMICP, to EM ASIC N2200 ASIC inputs, Mic2P and Mic2N.

Figure 75 External microphone

RM-208

System Module Nokia Customer Care

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