dCS Scarlatti DAC
User Manual
Software Issue 1.2x
August 2011
Flename: Scarlatti DAC Manual v1_2x.docx
Page 23
English
version
S
PECIFICATION
Converter type
5-bit, 2.822 or 3.07MS/s oversampled,
dCS
Ring DAC
topology.
Digital inputs
IEEE 1394 interface on 2x 6-way connectors. The interface accepts
dCS
-
encrypted DSD (1 bit data at 2.822MS/s) from up to 4 sources.
2x AES/EBU on 3-pin female XLR connectors. Each will accept up to 24 bit
PCM at 32 - 192kS/s,
OR
as a Dual AES pair at 88.2, 96, 176.4 or 192kS/s.
3x SPDIF on 2x RCA Phono and 1x BNC connectors. Each will accept up to
24 bit PCM at 32 - 192kS/s.
1x SPDIF optical on a Toslink connector, will accept up to 24 bit PCM at 32 -
96kS/s.
1x SDIF-2 interface on 2x BNC connectors, will accept up to 24 bit PCM at
32 - 96kS/s or SDIF-2 DSD (auto-selected). If the unit is not in Master mode,
this interface requires a compatible word clock input, locked to the data rate.
Clocking
Word Clock Input on 1x BNC connector, accepts standard word clock at 32,
44.1, 48, 88.2, 96, 176.4 or 192kHz. The data rate can be the same as the
clock rate or an exact multiple (0.25x, 0.5x, 1x, 2x, 4x) of the clock rate.
Sensitive to TTL levels.
Word Clock Output on 1x BNC connector. In Master mode, a TTL-compatible
44.1kHz word clock appears on this output, not temperature compensated.
Frequency response
(set to Filter 1)
Fs = 32kS/s
Fs = 44.1 or 48kS/s
Fs = 88.2 or 96kS/s
Fs = 176.4 or 192kS/s
DSD
+0.1/-0.5dB, 10Hz to 15kHz
+/-0.1dB, 10Hz to 20kHz
+/-0.1dB, 10Hz to 20kHz
+/-0.1dB, 10Hz to 20kHz
+/-0.1dB, 10Hz to 20kHz
-3dB @ >38kHz
-3dB @ >67kHz
-3dB @ >66kHz
Residual noise
Better than –110dB0, 20Hz - 20kHz unweighted.
Spurious responses
Better than –100dB0, 20Hz - 20kHz.
L-R crosstalk
Better than –80dB0, 20Hz - 20kHz.
Output levels
2V rms or 6V rms on all outputs for a full-scale input, set in the menu.
Balanced outputs
1 stereo pair on 2x 3-pin male XLR connectors (pin 2 = hot, pin 3 = cold).
These outputs are electronically balanced and floating, the signal balance
ratio at 1kHz is better than 40dB. Output impedance is 3
Ω
, maximum load is
600
Ω
(a 10k
Ω
- 100k
Ω
load is recommended).
Unbalanced outputs
1 stereo pair on 2x RCA Phono connectors. Output impedance is 52
Ω
,
maximum load is 600
Ω
(a 10k
Ω
- 100k
Ω
load is recommended).
Size and weight
465mm (18.3”) long x 405mm (16.0”) deep x 75mm (3.0”) high. Allow extra
depth for cable connectors. Allow space for air flow around the unit. Weight:
11.3kg (24.9lbs).
Power requirements
Internally set to either 100, 115/120, 220 or 230/240V AC, 49 – 62Hz.
Power consumption: 22W typical, 30W maximum.
These specifications are subject to change without notice.
