Cypress DCT-1D User manual
DCT-1D
Optical to Analog Audio Converter
with Dolby®Digital Decoder
Operation Manual
Operation Manual
DISCLAIMERS
The information in this manual has been carefully checked and
is believed to be accurate. Cypress Technology assumes no
responsibility for any infringements of patents or other rights of third
parties which may result from its use.
Cypress Technology assumes no responsibility for any inaccuracies
that may be contained in this document. Cypress also makes no
commitment to update or to keep current the information contained
in this document.
Cypress Technology reserves the right to make improvements to this
document and/or product at any time and without notice.
COPYRIGHT NOTICE
No part of this document may be reproduced, transmitted,
transcribed, stored in a retrieval system, or any of its part translated
into any language or computer le, in any form or by any means—
electronic, mechanical, magnetic, optical, chemical, manual, or
otherwise—without express written permission and consent from
Cypress Technology.
© Copyright 2011 by Cypress Technology.
All Rights Reserved.
Version 1.1 August 2011
TRADEMARK ACKNOWLEDGMENTS
All products or service names mentioned in this document may be
trademarks of the companies with which they are associated.
Manufactured under license from Dolby Laboratories. “Dolby” and
the double-D symbol are trademarks of Dolby Laboratories.
SAFETY PRECAUTIONS
Please read all instructions before attempting to unpack, install or
operate this equipment and before connecting the power supply.
Please keep the following in mind as you unpack and install this
equipment:
• Always follow basic safety precautions to reduce the risk of re,
electrical shock and injury to persons.
• To prevent re or shock hazard, do not expose the unit to rain,
moisture or install this product near water.
• Never spill liquid of any kind on or into this product.
• Never push an object of any kind into this product through any
openings or empty slots in the unit, as you may damage parts
inside the unit.
• Do not attach the power supply cabling to building surfaces.
• Use only the supplied power supply unit (PSU). Do not use the PSU
if it is damaged.
• Do not allow anything to rest on the power cabling or allow any
weight to be placed upon it or any person walk on it.
• To protect the unit from overheating, do not block any vents or
openings in the unit housing that provide ventilation and allow for
sufcient space for air to circulate around the unit.
REVISION HISTORY
VERSION NO. DATE DD/MM/YY SUMMARY OF CHANGE
VS1 29/03/13 First Release
VR2 13/05/13 Add USB Cable Accessory
CONTENTS
1. Introduction............................................ 1
2. Applications........................................... 1
3. Package Contents ................................ 1
4. System Requirements............................ 1
5. Features.................................................. 2
6. Operation Controls and Functions....... 3
6.1 Front Panel.........................................3
6.2 Rear Panel .........................................3
7. Connection Diagram ............................ 4
8. Specications ........................................ 5
9. Acronyms ............................................... 5
1
1. INTRODUCTION
The Optical to Analog Audio Converter (DAC) with Dolby®Digital
Decoder provides the ideal solution for converting an optical digital
audio signal to analog stereo audio. With audio sampling rate support
up to 48 kHz (Dolby Digital)/96 kHz (LPCM) and I/O data rate support
up to 24-bit, it provides high quality sound conversion. The Dolby
Digital Decoder function guarantees that Dolby digital audio signals
are downmixed to analog stereo without loss of quality.
This unit is perfect for use in computer audio systems or digital mixing
consoles and can be powered from any spare USB port allowing it
to be used with USB equipped HDTVs, Blu-ray players or computers
without the need for a separate power supply.
2. APPLICATIONS
• Converting digital optical audio into analog stereo
• Converting Dolby Digital formatted audio into analog stereo
• HDTV with only digital audio output to analog amplier input
• Improving the digital to analog conversion quality from any stereo
optical digital audio source
3. PACKAGE CONTENTS
• Optical to Analog Audio Converter with Dolby Digital Decoder
• Mini-USB to USB A type cable
• Operation Manual
4. SYSTEM REQUIREMENTS
Digital audio source device such as DVD/Blu-ray player or Media
player with an optical output cable and to a device such as an
amplier or AV receiver with analog stereo input.
2
5. FEATURES
• Supports optical digital audio signal input and conversion into
analog audio signal L/R output
• Supports uncompressed digital LPCM stereo or Dolby Digital 5.1CH
audio inputs
• Supports LPCM 2CH audio sampling rates from 32 to 96 kHz (32, 44.1,
48, 88.2 and 96 kHz)
• Supports Dolby Digital 5.1CH audio sampling rates of 48 kHz
• Supports Dolby Digital audio downmixing to 2-channel audio
• Supports S/PDIF bitstream 24-bit of data for the left and right
channels
• Compact, elegant design and easy to install
3
6. OPERATION CONTROLS AND FUNCTIONS
6.1 Front Panel
Optical to Analog Audio Decode
r
Optical to Analog Audio Decode
r
RL
LINE OUT
RL
LINE OUT
OPTICAL IN USB 5V
1 32 4
1Dolby/PCM LED Indicator: When the source audio is encoded with
Dolby Digital the LED will illuminate.
2OPTICAL IN: Connect the Optical input to an Optical digital audio
source, such as a Games Console, HDTV or Set-top Box.
3USB 5V: Connect the USB power port to any powered USB with a
Mini-USB cable or Mini-USB to AC adaptor.
4Power LED: The LED will illuminate when connected to power.
6.2 Rear Panel
Optical to Analog Audio DecoderOptical to Analog Audio Decoder
RL
LINE OUT
RL
LINE OUT
OPTICAL IN USB 5V
1
1R/L LINE OUT: Connect the R/L analog audio output to the input of
your AV Receiver or audio system.
4
7. CONNECTION DIAGRAM
OR
HDTV without
Analog Audio Output
Digital
Optical
Input
Analog
Stereo
Output
Power Supply
Amplier
(with a spare analog input)
USB
Power
5
8. SPECIFICATIONS
Input Port 1×Optical
Output Port 1×L/R (2×RCA)
Power Supply Powered by USB bus
Output Level 1Vrms ± 10%
THD+N <0.018%
Frequency Response ±1 dB
SNR >80 dB
Crosstalk <-80 dB
Dimensions 55 mm (W)×82 mm (D)×22.5 mm (H)
Weight 46 g
Chassis Material Plastic
Silkscreen Color White
Operating Temperature 0 ˚C ~ 40 ˚C/32 ˚F ~ 104 ˚F
Storage Temperature −20 ˚C~60 ˚C/−4 ˚F~140 ˚F
Relative Humidity 20~90% RH (non-condensing)
Power Consumption 1.8 W
9. ACRONYMS
ACRONYM COMPLETE TERM
DAC Digital to Analog Converter
RCA Audio Connector (Radio Corporation of America)
S/PDIF Sony/Philips Digital Interconnect Format
SNR Signal-to-noise Ratio
THD Total Harmonic Distortion
USB Universal Serial Bus
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