Datasheet

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
Table 2-12. For more information, see “Differential In/Out Connectors
(P8–9)” on page 2-28.
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
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