ACCESSORIES
Coaxial to Optical converter
MANUALE D’USO
/
USER’S MANUAL
C
2
O
audison.com
All specifications subject to change without notice
USE
The C2O interface converts the signals coming from the coaxial digital
input and from the analog AUX-IN into a
TOSLINK optical digital output
signal (up to 24 bit/192kHz)
.
The conversion allows the integration of the
new Hi-Res portable
devices
equipped with coaxial digital output (75Ω) and smartphones
with analog output on 3.5 mm mini Jack (also 4 poles) with Audison
processors featuring an optical digital input compatible with the
resolution of the signal sent to the C20.
Thanks to its extreme compactness, the C20 can be installed in a
hidden position on the dashboard, drastically reducing the length
of the cabling between the portable player and the receiving device
nullifying in this way any issues with interfacing.
FEATURES
The coaxial digital input is provided with an
isolation transformer
that improves the balance between the transmitter and the
receiver circuit
, reducing noise due to EMI electromagnetic
interference, which is particularly insidious inside the passenger
compartment.
The
AUX-IN input is equipped with a pre-amplifier with adjustable
gain of 0.1V ÷ 2V
for an optimal coupling with each device before
the Analog-Digital conversion is performed by a high quality
converter at a resolution of 24 bit/48 kHz.
For maximum ease of use in cars, the
C2O independently selects
the input
with priority assigned to the AUX-IN. With the default
setting, after 6 seconds of no analog signal, the C2O moves to the
coaxial digital input. An internal switch allows for the time before
the switch to be set to 9 or 12 seconds.
POWER SUPPLY
Voltage:
6 ÷ 30 VDC
Idling current:
70 mA @ 12V
Remote IN voltage:
3 VDC (0.5 mA)
+ 12 Remote IN voltage:
6 VDC (80 mA)
SIGNAL STAGE
Distortion THD (analog input):
0,002 %
Bandwidth (analog input):
5 ÷ 24 kHz
S/N ratio @ A weighted
(analog input):
105 dB
Input sensitivity
(analog input):
0.1 ÷ 2 VRMS
INPUTS
Analog Pre-IN:
3.5mm jack stereo 3/4 pole
Digital S/PDIF:
Electrical coax (24 bit 192 kHz)
INPUT MANAGEMENT
Signal priority:
Analog
Digital IN delay switch:
6 - 9 - 12 sec. (default 6 sec.)
OUTPUT
Optical digital:
From analog input: 24 bit 48 kHz
From digital input: 24 bit 192 kHz
SIZE
W x H x D mm / In.
69 x 26 x 54,5 / 2.71 x 1. 02 x 2.14
Weight kg / lbs:
0,048 / 0.106
26mm /
1.02in.
69mm / 2.71in.
69mm / 2.71in.
45mm / 1.77in.
44,5mm / 1.75I
n.
AUX
S/PDIF
0.1V
2.0V
C
2
O
COAX TO OPTICAL
