Datasheet

SHARC Audio EZ-Extender Manual 2-9
SHARC Audio EZ-Extender Hardware Reference
Audio In3 Left Selection Switch (SW11)
The audio selection switch (SW11) connects the left channel of the In3 line,
connected to the AD1939’s ADC5 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. The switch circuit is connected to
AD1939B (codec B). To use the standard, off the shelf DB25 connector
to XLR cables, change the switch to the differential setting; see Table 2-5.
See also “Differential In/Out Connectors (P1–5)” on page 2-18.
Table 2-4. Audio In2 Right Selection Switch (SW10)
SW10 Position Single-Ended Mode
RCA IN (Default)
Differential Mode
DB25 IN (P1)
SW10.1 ON OFF
SW10.2 OFF ON
SW10.3 ON OFF
SW10.4 OFF ON
SW10.5 ON OFF
SW10.6 OFF ON
Table 2-5. Audio In3 Left Selection Switch (SW11)
SW11 Position Single-Ended Mode
RCA IN (Default)
Differential Mode
DB25 IN (P1)
SW11.1 ON OFF
SW11.2 OFF ON
SW11.3 ON OFF
SW11.4 OFF ON
SW11.5 ON OFF
SW11.6 OFF ON