Audio Interface - Nokia RM-632 Service Manual

RM-632; RM-634; RM-699
System Module
Figure 38 GPS interface

Audio interface

The following block diagram illustrates the audio interface of the phone:
Figure 39 Audio interface
The digital microphone is connected directly to RAPU.
The earpiece is driven directly by a built-in amplifier included in EM ASIC.
The IHF speaker is driven directly by a built-in stereo amplifier included in EM ASIC.
The vibra is driven directly by a built-in amplifier included in EM ASIC.
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