Setting Functions
1-6
1.4.2
Detailed Explanation of Function Setting Switches and Header Pins
SW001:
Switch to select S/PDIF input connector (optical/coaxial). Selection of the
S/PDIF signal that is routed to the DIR1703 DIN port.
SW002:
Reset switch for the DIR1703 and DIT4096. Pushing this switch resets the
DIR1703 and DIT4096 to the initial state. A reset circuit operates at the time of
power-supply connection, resetting the DIR1703 and DIT4096 automatically.
Therefore, it is not usually necessary to operate this switch.
SW003:
Switch for setting the DIR1703 system clock and output data format
SCF1
SCF0
System Clock
L
L
128 f
S
L
H
256 f
S
(initial stting)
H
L
384 f
S
H
H
512 f
S
FMT1
FMT0
Output Data Format
L
L
16-bit right-justified, MSB-first
L
H
24-bit right-justified, MSB-first
H
L
24-bit left-justified, MSB-first
H
H
24-bit, I
2
S (initial setting)
SW004:
Switch for setting the DIR1703 output clock source
Position
Output Clock (SCK, BCK, LRCK)
X’tal
Crystal clock
PLL
PLL clock
Auto
PLL (PLL locked) / crystal (PLL unlocked)
Note:
When using the DIR1703 as a master clock for the ADC, this switch must be set to X’tal.
When inputting S/PDIF data demodulated by the DIR1703 into the DAC, set this switch to Auto or PLL.
SW005:
Switch for setting the DIT4096 system clock and input data format
Note that the OFF state of this switch sets a HIGH level.
CLK1
CLK0
System Clock
L
L
Not used
L
H
256 f
S
(initial setting)
H
L
384 f
S
H
H
512 f
S
