User's Manual

UE910 3G HARDWARE USER GUIDE 1vv0301171 Rev.3 • 2015-04-17 57 of 78
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7 AUDIO SECTION
7.1 Overview
The UE910 is provided by two main Audio interfaces:
 Analog Audio Path
 Digital Audio Path
NOTE:
The two Paths could not be used in parallel; If the Analog Voice lines are
selected, the DVI interface is disabled and Vice versa.
7.2 Analog Voice Interface
The Base Band Chip of the UE910 provides one differential input for audio to be transmitted (Uplink)
and a balanced BTL output for audio to be received (downlink).
The Signals are available on the following Pads:
PAD
Signal
I/O
Function
B2
EAR+
O
Analog Voice Interface (EAR+)
B3
EAR-
O
Analog Voice Interface (EAR-)
B4
MIC+
I
Analog Voice Interface (MIC+)
B5
MIC-
I
Analog Voice Interface (MIC-)