Datasheet

SHARC Audio EZ-Extender Manual 2-13
SHARC Audio EZ-Extender Hardware Reference
Audio In6 Left Selection Switch (SW17)
The audio selection switch (SW17) connects the left channel of the In6 line,
connected to the AD1939’s ADC11 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
AD1939C (codec C). To use the standard, off the shelf DB25 connector
to XLR cables, change the switch to the differential setting; see
Table 2-11. See also “Differential In/Out Connectors (P1–5)” on
page 2-18.
Table 2-10. Audio In5 Right Selection Switch (SW16)
SW16 Position Single-Ended Mode
RCA IN (Default)
Differential Mode
DB25 IN (P2)
SW16.1 ON OFF
SW16.2 OFF ON
SW16.3 ON OFF
SW16.4 OFF ON
SW16.5 ON OFF
SW16.6 OFF ON
Table 2-11. Audio In6 Left Selection Switch (SW17)
SW17 Position Single-Ended Mode
RCA IN (Default)
Differential Mode
DB25 IN (P2)
SW17.1 ON OFF
SW17.2 OFF ON
SW17.3 ON OFF
SW17.4 OFF ON
SW17.5 ON OFF
SW17.6 OFF ON