RM-384
System Module and User Interface
Page 5-36 Company Confidential Issue1
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Audio concept
Audio HW architecture
The audio control and processing is provided by the MSM which contains the audio codec, the MCU and DSP
blocks. These blocks handle and process the audio data signals. The baseband supports 2 microphone inputs, 1
line inputs and three receiver (earpiece)/ speaker outputs.
Audio connections:
MSM6800A audio connections are primarily one of seven categories:
Microphone inputs
Auxiliary input
Line inputs
Earphone outputs
Stereo headphone outputs
Auxiliary output
Line outputs
Figure 73 Analog codec front end with audio connections
