User Guide
dCS Verdi La Scala User Manual Manual for Software Issue 1.0x
dCS Ltd September 2004
Manual filename: Verdi LS Manual v1.0x.doc Page 32 email: more@dcsltd.co.uk
English version web-site: www.dcsltd.co.uk
SPDIF Optical Output
The optical output carries optically transmitted digital signals, sampled at
44.1kS/s. The data format is IEC60958, otherwise known as SPDIF. Data from
SACDs is also available, down-sampled to 16 bit / 44.1kS/s.
Use the Toslink output with Toslink fibre optic cables designed for digital audio
use. Pull off the plastic cover before use.
SDIF Interface
This consists of two data outputs, CH1 & CH2 and the Wordclock Out, all on
BNC sockets. The interface carries digital signals, sampled at 44.1kS/s. The
data format is SDIF-2. Data from SACDs is also available, down-sampled to 16
bit / 44.1kS/s.
Connect up the three BNC sockets with 75Ω co-axial cables designed for digital
audio or RF use. A.C. coupled cables are not suitable.
IMPORTANT! Please ensure the 3 cables are correctly connected to the DAC (or other
destination equipment), otherwise the interface may malfunction or the
channels may be swapped.
When playing a disc, Wordclock Out carries a 44.1kHz Wordclock.
Wordclock Digital Input
Wordclock In accepts a 44.1kHz Wordclock. It allows La Scala and the rest of
your system to be synchronised to a master clock. This arrangement helps
reduce jitter, which can degrade the audio output. When a 44.1kHz Wordclock
is connected, La Scala will automatically slave to it. The WClk indicator will flash
while locking and stay on while La Scala is locked.
There is no data on the wordclock interface. Use with 75 ohm co-axial cables
designed for digital audio or RF use. A.C. coupled cables are not suitable.
1394 Interface
All units feature an IEEE 1394 multi-channel interface, available on two 6-way
1394 connectors. If there are more than eight 1394 sources in the chain, La
Scala can be made inactive using the Transmit menu item, see page 20.
In this release, the unit generates DSD data at 2.822MS/s from either 1394
connector. For correct operation, the DAC must be locked to the 44.1kHz signal
on La Scala‘s Wordclock Out connector (or the system must be locked to a
master clock running at 44.1kHz). We recommend using the 1.8 metre long, 6-
way IEEE 1394 cable assembly and the BNC cable assembly provided. The
1394 indicator lights when the interface is active. See “IEEE 1394 Overview” on
page 42 for more information.
IMPORTANT! Do not connect both 1394 outputs to the same DAC or other destination
equipment - the interface system will be stuck in an endless loop and will not
work.
Power Link
This can be linked to similar connectors on other dCS units using a link cable.
All units linked in this way may be turned on or off or set to standby by pressing
a single Power button or sending one Remote Control command. Link cables
are available from dCS.