Analog Devices ADSP-BF592 EZ-KIT Lite Manual page 30

Audio Interface
two digital-to-analog converters (DACs), and requires minimal external
circuitry.
The codec is connected to the processor via the processor's serial port 0.
SPORT0 is disconnected from the codec by turning
makes available SPORT0 to the expansion interface II. See
Enable Switch (SW1)" on page 2-7
The codec is controlled via a 2-wire interface (TWI).
Mic gain values of 14 dB, 0 dB, or -6 dB are selectable through switch
. For more information, see
SW10
page 2-10.
Microphone bias is provided through a low-noise reference voltage. A
jumper on positions 2 and 3 of
audio jack. Placing a jumper on positions 1 and 2 of
directly to the mic signal. For more information, see
(JP5)" on page
and are 3.5 mm connectors for the audio portion of the board.
J2 J3
connects the mic on the top portion and line-in on the bottom.
nects the headphone on the top portion and line-out on the bottom. If
there is no 3.5 mm cable plugged into the bottom of either
signals are looped back inside the connector. For more information, see
"Dual Audio Connectors (J2–3)" on page
For testing,
SW10
phone. positions 5 and 6 loop the output of the codec to the input
SW10
when no cables are connected to
1-10
"MIC Gain Switch (SW10)" on
JP5
2-14.
position 4 connects the
J4
ADSP-BF592 EZ-KIT Lite Evaluation System Manual
OFF
for more information about
connects the
MICBIAS
JP5
"MIC Select Jumper
2-20.
signal to the right head-
MICIN
and .
J5
switch , which
SW1
"SPORT0
.
SW1
signal to the
connects the bias
J2
con-
J3
or , the
J2 J3