User's Manual

HE920 Hardware User Guide
1vv0301014 Rev.9 – 2014-01-23
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Reserved. Page 56 of 84
10. Audio Section Overview
The HE920 module supports an analog audio interface and digital audio interface.
10.1. Analog Audio
The HE920 module provides two analog audio paths transmitting and receiving.
Please refer to the xE920_Audio_Settings_Application_Note, 80404NT10095A
10.2. Digital Audio
HE920 module can be connected to external codec through digital interface.
The product is providing one Digital Audio Interface (DVI) on the following Pins:
PAD
Signal
I/O
Function
Type
COMMENT
D11
DVI_WA0
I/O
Digital Audio Interface (WA0)
B-PD
1.8V
C8
DVI_RX
I
Digital Audio Interface (RX)
B-PD
1.8V
D9
DVI_TX
O
Digital Audio Interface (TX)
B-PD
1.8V
C10
DVI_CLK
I/O
Digital Audio Interface (CLK)
B-PD
1.8V
10.2.1. CODEC Example
Please refer to the Telit_UE_HE910V2_DE_CE910_HE920_DVI_Application_Note.