Arcam rDac User Manual

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 32kHz 44.1kHz 48kHz 88.2kHz 96kHz 176kHz 192kHz
USB16&24Bit Yes Yes Yes Yes Yes No No
Optical16&24Bit Yes Yes No No No No No
Coaxial16&24Bit Yes Yes Yes Yes Yes Yes(1) Yes(1)
Wireless16Bit No Yes No No No No No
(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
locations
Voltage(d.c) Componentsassociated
REG400 +5v Kleeroption,opticalinputrec,LEDarrayviaIC102
REG401 +3V3 IC100,103,104,108,107,200,201,202,203,204,205, 206, 301
mutecircuit
REG402 +3V SPDIFreceiver
REG403 +5v Outputstage+5v
REG404 +3v3 Oscillator
REG405 +5v DAC
IC400‐5v Outputstage‐5v
IC107 +1.8 Mainmicrocorevoltage
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Arcam rDac Specifications

General

Outputs	RCA
Sample Rate	Up to 192kHz
Bit Depth	24-bit
DAC Chip	Wolfson WM8741
Sample Rate (USB)	Up to 96kHz
Sample Rate (S/PDIF)	Up to 192kHz
Output Voltage	2.1V RMS
THD+N	<0.002%
Type	Digital-to-Analog Converter (DAC)
Inputs	USB, Optical
Weight	700 g
Power Supply	5V DC