Push Buttons and Switches
2-14
ADSP-21479 EZ-Board Evaluation System Manual
Audio In1 Left Selection Switch (SW15)
The audio selection switch (
SW15
) connects the left channel of the
In1
line,
connected to the AD1939’s
ADC1
circuit, to either the single-ended RCA
connectors or the differential DB25 connector. By default,
SW15
is set up
to use the RCA connectors. To use the standard, off the shelf DB25 con-
nector to XLR cables, change the switch to the differential setting. See
For more information, see “Differential In/Out Connectors
Audio In1 Right Selection Switch (SW16)
The audio selection switch (
SW16
) connects the right channel of the
In1
line, connected to the AD1939’s
ADC2
circuit, to either the single-ended
RCA connectors or the differential DB25 connector. By default, the
switch is set up to use the RCA connectors for audio in. To use the stan-
dard, off the shelf DB25 connector to XLR cables, change the switch to
the differential setting. See
For more information, see “Dif-
ferential In/Out Connectors (P8–9)” on page 2-28.
Table 2-12. Audio In1 Left Selection Switch (SW15)
SW15 Position
Single-Ended RCA IN (Default)
Differential DB25 IN (P8)
SW15.1
ON
OFF
SW15.2
OFF
ON
SW15.3
ON
OFF
SW15.4
OFF
ON
SW15.5
ON
OFF
SW15.6
OFF
ON