Audio Concept; Audio Hw Architecture; Internal Earpiece - Nokia Lumia 1320 Service Manual

RM-994/ RM-995/ RM-996
System Module

Audio concept



Audio HW architecture

BoostMono (U2100) along with Audio IC WCD9304 provides the analogue audio output interfaces and
MSM8930 provides the digital audio output interface support.
Figure 48 Audio system and AV connector block diagram

Internal earpiece

The internal earpiece used is Goertek and is directly connected to EAR_OP/EAR_OM interface of the
WCD9304 Codec.
Figure 49 Internal earpiece diagram
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