Arcam RDAC - Руководство по эксплуатации - Страница 2
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Overview
The rDac is a D to A convertor featuring Optical / Coaxial and USB inputs and utilizes a simple
push button to cycle between the input option – when locked on to data the LED in front of the
relevant source will light Green and audio should be present if the LED is RED in color the input
is not locked onto relevant data.
Compatible formats include.
All PCM 2 channel
Input / bit depth
USB 16 & 24 Bit
Optical 16 & 24 Bit
Coaxial 16 & 24 Bit
Wireless 16 Bit
(1) Source may not be capable of resolution
Power supply
circuit page 5
A external 6v 600ma D.C power supply is used to supply the required power to the Connector
at location CON400 this is then switched by the rear panel mounted power switch at location
SW400, D400 is used for PSU monitor by associated circuitry formed by IC105 and IC104, D401
is used to prevent reverse bias of the PSU, the supply is then filtered by the network of L400
and C400 to form the main PSU source of +6v D.C.
The rDac features 7 separate regulated powers supplies details appear in the table below
Regulator
Voltage (d.c)
locations
REG400
+5v
REG401
+3V3
REG402
+3V
REG403
+5v
REG404
+3v3
REG405
+5v
IC400
‐5v
IC107
+1.8
32kHz 44.1kHz 48kHz
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
No
Components associated
Kleer option, optical input rec, LED array via IC102
IC 100, 103, 104, 108, 107, 200, 201, 202, 203, 204, 205, 206, 301
mute circuit
SPDIF receiver
Output stage +5v
Oscillator
DAC
Output stage ‐5v
Main micro core voltage
88.2kHz 96kHz 176kHz 192kHz
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
Yes
(1)
(1)
No