Nokia RM-632 - Audio Interface

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.
RM-632; RM-634; RM-699
System Module
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