MyTek 8X192 ADDA User Manual page 13

NORMAL OPERATION. AD AND DA ON EXTERNAL WORDCLOCK.
3.
AD FEEDING THE RECORDER, DA MONITORING RECORDER
In this mode both the AD and DA run on an external clock. Holding the "Ext. Clock Source" button
selects this mode. Although this mode does not provide the lowest jitter performance it might be
desirable for systemic reasons. External recorders (such as DAW etc) can be synchronized to
external wordclock sources OR AD digital outputs (any format: AES or DIOCARD1 or DIOCARD2) OR
to converter Worclock output.
This example shows 44.1 PCM, but any FS can be selected, including DSD and 128xDSD. Also instead
of AES any other digital input to DA can be selected depending on a particular system configuration.
The unit will output on its BNC Wordclock outs corresponding to the sampling frequency provided
externally unless it's divided by using WCK button. If the DA converter receives no selected digital in OR
this input is not synchronous with AD clock, the LED will flash and DA converter will mute. Sample Rate
has to be selected manually to match wck or its nearest approximation. WCK will be the base of
sampling rate. If no WCK source is detected, WCK LED will flash and the unit will not pass signal.
FEED THROUGH OPERATION. AD AND DA ON EXTERNAL CLOCK.
4.
AD FEEDING DA DIRECTLY
In this mode both the AD and DA run on an external clock. Although this mode does not provides the
lowest jitter performance it might be desirable for systemic reasons. External recorders (such as DAW
etc) can be synchronized to an external wordclock source OR AD digital outputs (any format: AES or
DIOCARD1 or DIOCARD2) OR to a converters Worclock output. In this mode signal is fed from the AD
to digital outputs and also to DA directly. This mode may be useful when conversion latency has to be
minimized during the recording. It functionally corresponds to a multitrack tape machine always being on
"input".
This example shows 44.1 PCM, but any FS can be selected, including DSD and 128xDSD. Also instead
of AES any other digital input to DA can be selected depending on a particular system configuration.
The unit will output on its BNC outs a Wordclock signal corresponding to the sampling frequency
provided externally, unless it's divided by using the WCK button. If the DA converter receives no selected
digital in OR this input is not synchronous with AD clock, the LED will flash and DA
converter will mute. The Sample Rate has to be selected manually to match wck or its nearest
approximation. WCK will be the base of sampling rate.
If no WCK source is detected, the WCK LED will flash and the unit will not pass signal.
LED ON
LED OFF
LED ON
LED OFF
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