User Guide

Accelerometer

The device has an accelerometer, which is used in automatic image rotation. Accelerometer is connected to

application processor through I

C bus. Image rotation has build-in hysteresis.

Audio concept

Audio HW architecture

The functional core of the audio hardware is built around two ASIC’s: Cellular Modem ASIC D2800 and the

mixed signal EM ASIC N2200.

There are four audio transducers:

• Dynamic earpiece (part of UI/Slide module)

• 2 Dynamic speakers

• Electret microphone

In addition to the audio transducers, N2200 also provides an output for the dynamic Vibra component. All

galvanic audio accessories are connected to the AV-connector. Bluetooth audio module, that is connected to

Cellular Modem ASIC D2800 supports Bluetooth audio functionality. For some audio applications, part of the

processing is done on application processor ASIC D4800, for example for Music Player.

RM-313

System Module

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