User's Manual

DE910 Series Hardware User Guide
1vv0301183 Rev.1 – 2015-2-13
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9. Audio Section Overview
The DE921 module doesn’t support an analog audio interface and supports one Digital Audio
bus.
In order to develop an application including an Analog Audio it is necessary to add a
dedicated CODEC on the Application design.
For further information, please refer to the “Digital Voice Interface Application Note”.
9.1. Electrical Characteristics
The product is providing one Digital Audio Interface (DVI) on the following Pins:
Pin Signal I/O Function Type
N21
PCM_FS I/O Digital Voice interface
1.8V
V21
PCM_DIN I Digital Voice interface (RX)
T21
PCM_DOUT O Digital Voice interface (TX)
R21
PCM_CLK I/O Digital Voice interface (CLK)
9.1.1. CODEC Example
Please refer to the Digital Voice Interface Application note.