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4.
Operation
On the rear panel of the ADC card are four sockets and one multi-position DIP switch. Their functions
are as follows:
The front panel of the XLogic Channel unit carries no controls associated
with the ADC card although it does have a ‘Lock’ indicator, located
immediately below the ‘Power’ indicator. The various states of this
indicator are as follows:
State
Function
Off
The ADC card is not locked.
Yellow
The ADC card is set to internal sync.
Red
The ADC card is set to external sync and is locked.
Synchronisation
There are four possible synchronisation options, selected with switches 1 to 3 as follows:
Function
Switch(es)
Detail
Internal sync
In this mode, with switch 1 ‘off’ (down), the ADC card will free-
run at the sample rate determined by the setting of switches 4 to
6 (see over leaf).
AES sync
With switches 1 and 3 set this way, an external un-balanced
(75Ω) AES sync source may be used – switches 4 to 6 will need
to be set to match the nominal rate being applied.
Word Clock
In this mode the ADC card will lock to an external TTL level
word clock at any nominal sample rate between 44.1kHz and
192kHz – again, set switches 4 to 6 to match the nominal rate
being applied.
‘Super Clock’
With switches 1 to 3 all set ‘on’ (up), the card will synchronise to
a 256x ‘Super Clock’ as provided from ProTools™ – switches 4
to 6 should be set to match the nominal rate being used (sample
rates greater than 96kHz are
not
supported).
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
GAIN
12
6
0
-12
-24
24
18
MTR
INPUT
5
+20
-20
OUTPUT
ADC LOCK
POWER
XL
SUPER ANALOGUE
C H A N N E L
ogic
Operation
Page 11
D
L
KEY IN
OUTPUT
AES OUT
SPDIF OUT
SYNC IN
RIGHT IN
SAMPLE
RATE
SYNC
Fs X
44.1
1/4
1/2
AES
Fs
INT
Fs = 48
4 SINGLE / 2
4 SINGLE / 4
WD CLK
256 x Fs
EXT
ON
1 2 3 4 5 6
Synchronisation
Options
Sample Rates
AES/EBU and SPDIF
Outputs
External Analogue Input.
A signal applied to this connector will
feed the right hand side of the A to D
converter in all ‘stereo’ modes.
External Sync Input.
Either AES/EBU or
TTL wordclock are
accepted.
ADC Lock
Indicator
Содержание XLogic Super-Analogue
Страница 16: ...XLogic Channel ADC Owner s Manual Page 14...
Страница 20: ...XLogic Channel ADC Owner s Manual Page 18 Notes...