S/Pdif Interface; Audio Interface - Analog Devices ADSP-21479 EZ-Board Manual

S/PDIF Interface

S/PDIF Interface
The ADSP-21479 processor has a built-in S/PDIF transmitter and
receiver for digital audio applications. The EZ-Board supports the S/PDIF
interface and brings out both the transmitter and receiver via RCA
connectors
J6
nected by DAI pins via switches
• DAI pin 1 (
• DAI pin 18 (
and can be turned
SW1 SW7
connectors if the pins are used on the expansion II interface. See
8] Enable Switch (SW1)" on page 2-8
(SW7)" on page 2-11

Audio Interface

The AD1939 device is a high-performance, single-chip codec featuring
eight digital-to-analog converters (DACs) for audio output and four ana-
log-to-digital converters (ADCs) for audio input. This translates to four
stereo channels of audio out and two stereo channels of audio in.
The codec can input and output data at a sample rate of up to 192 kHz on
all channels.
The analog audio channels are available via single-ended RCA connectors
( and ) or differential DB25 connectors (
J4 J5
EZ-Board is shipped with the RCA connectors used by the AD1939 codec
for audio in and out. To use the differential connectors, change DIP
switches
SW15–18
is required to operate in this mode.
1-20
and , respectively. The S/PDIF's in and out pins are con-
J7
) as
DAI_P1 SPDIF_OUT
) as
DPI_P18 SPDIF_IN
to disconnect the DAI pins from the RCA
OFF
for more information.
. A standard, off the shelf DB25 connector to XLR cables
ADSP-21479 EZ-Board Evaluation System Manual
and :
SW1 SW7
and "DAI [17–20] Enable Switch
and
P8
"DAI [1–
). By default, the
P9