Telit Wireless Solutions UE910 series - 12 Audio Section Overview; Analog Voice Interface

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12 Audio Section Overview
The UE910 is provided by two main interfaces:
 Analog Audio Path
 Digital Audio Path
The UE910 variants supporting the Audio are listed in the following table::
Product
Audio
Notes
UE910-EUR
YES
UE910-EUD
NO
Reserved Pads:,B2, B3, B4, B5
UE910-NAR
YES
UE910-NAD
NO
Reserved Pads:,B2, B3, B4, B5
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.
12.1 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
Note
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-)
DRAFT