User's Manual

HE910 Hardware User Guide
1vv0300925 Rev.28 – 2015-06-24
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 71 of 71
13 Audio Section Overview
The Audio of the HE910 Module is carried by DVI digital audio interface.
The audio port can be directly connected to end device using digital interface, or via one of the
several compliant codecs (in case an analog audio is needed).
13.1 Electrical Characteristics
The product is providing the Digital Audio Interface (DVI) on the following Pins:
Digital Voice Interface (DVI)
PAD Signal I/O Function Note Type
B9
DVI_WA0 I/O
Digital Audio Interface (Word Alignment /
LRCLK)
CMOS 1.8V
B6
DVI_RX I Digital Audio Interface (RX) CMOS 1.8V
B7
DVI_TX O Digital Audio Interface (TX) CMOS 1.8V
B8
DVI_CLK I/O Digital Audio Interface (BCLK) CMOS 1.8V
13.1.1 CODEC Examples
Please refer to the HE910 Digital Audio Application note.