DCT-39 Operation Manual Compact Digital Audio Processor with De-pop,

DCT-39

Compact Digital Audio Processor with De-pop,

Volume Adjustment and SRC Functions

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 file, 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 2015 by Cypress Technology.

All Rights Reserved.

TRADEMARK ACKNOWLEDGMENTS

All products or service names mentioned in this document may be trademarks of the companies with which they are associated.

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 fire, electrical shock and injury to persons.

• To prevent fire 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 sufficient space for air to circulate around the unit.

REVISION HISTORY

VERSION NO. DATE (DD/MM/YY) SUMMARY OF CHANGE

VR0 16/10/15 Preliminary release

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 and Rear Panels .....................3

6.2 Top Panel ..........................................4

6.3 Side Panel .........................................5

7. Connection Diagram ............................ 6

8. Specifications ........................................ 7

9. Acronyms ............................................... 8

1. INTRODUCTION

The digital audio processor is designed to allow optical or coaxial

LPCM audio source input and convert to different sampling rates up to 192kHz/24bits. The digital audio processor utilizes DSP engine instead of software process to prevent distortion. The converted audio source signal could be output to both optical and coaxial audio signals simultaneously. The outputs can be connected with amplifier for high quality audio output. Besides, the audio processor support

DSD over PCM (DOP) decodes to PCM in order to further process the audio signal not only for sampling rate convert but also volume control. Meanwhile, the pop noise could be reduced when plug in audio source.

2. APPLICATIONS

• Professional music player

• Amplifier producer

• Audio equipment manufacturer

• Studio

3. PACKAGE CONTENTS

• 1×Digital Audio Processor Main Unit

• 1×5 V/2.6 A Power Adaptor

• 1×Operation Manual

4. SYSTEM REQUIREMENTS

Input audio coaxial or optical audio source and output to amplifier.

1

5. FEATURES

• Supports coaxial and optical digital audio input

• Supports Non-LPCM pass through

• Supports coaxial and optical audio output simultaneously

• Supports LPCM input sampling rates up to 192kHz

• Supports to convert sampling rate of input audio source. The maximum sampling rate up to 192kHz/24 bits

• De-pop function to eliminate pop sound once plug in audio source

• Supports volume control, the minimum volume control could be reduced to -60dB

• Supports DOP decode to PCM of coaxial and optical audio source

• Supports firmware update via micro USB

• Compact and light weight design

2

3

6. OPERATION CONTROLS AND FUNCTIONS

6.1 Front and Rear Panels

Front Rear

COAX IN OPTI. IN

DC

5V

SERVICE

OPTI. OUT COAX OUT

1 2 3 4 5 6

1 COAX IN: Connects the coaxial audio source. Just plug in coaxial audio source here.

2 OPTI. IN: Connects the optical audio source. Just plug in optical audio source here.

3 DC 5V: Connects adaptor of DC 5V to power on the device.

4 SERVICE: Support firmware update in field and supply power to device instead of power adaptor.

5 OPTI. OUT: For optical audio output such as amplifier.

6 COAX OUT: For coaxial audio output such as speaker.

6.2 Top Panel

1

VOL.

(dB)

0

-15

-30

FS.

(kHz)

192

176.4

96

88.2

48

44.1

BYPASS

-60

COAX

VOL.

2

3

4

5

1 VOL. (dB) LEDs: Volume indicator shows the volume from 0 , -15, -30 and -60 dB.

2 FS. (kHz) LEDs: Audio frequency indictor of 192, 176.4 , 96 , 88.2 , 48,

44.1 kHz.

3 BYPASS LED: Bypass indicator will illuminate when switches device to “Output Sample Frequency Mode” and no need to convert the input audio source to different sampling rate.

4 COAX LED: Coaxial indicator will illuminate once connects with coaxial audio source. The indicator will not illuminate when connects with optical source.

5 VOL. LED: Volume indicator will illuminate once selects to “VOL mode”.

4

6.3 Side Panel

FUNC.

IN +

1 2 3

1 FUNC: Function key provides modes selections. There are three modes available.

a. Volume Mode: The default setting sets at volume mode. The volume could be adjusted once under this mode and the VOL indicator will illuminate. The mode will automatically switch back to this mode once switches to input sampling frequency mode or output sampling frequency mode after four seconds and not active them.

b. Input Sampling Frequency Detection Mode: The sampling rate of input audio source will be automatically identified under this mode. The frequency indicator will flash for input sampling rate accordingly. If no audio source input, the frequency indicator will not illuminate.

c. Output Sampling Frequency Adjust Mode: This mode offer input audio source converts to different output frequencies of 44.1,

48, 88.1, 96,176.4 and 192kHz. If the frequency no needs to convert, please select “Bypass”.

2 IN: The default setting sets at “coaxial in” for input audio source. If input audio source is optical audio source, please press “IN” key to switch it.

3 MINUS/PLUS (-/+): To adjust output volume from 0~-60dB or select in different frequencies.

5

7. CONNECTION DIAGRAM

DVD or Blu-ray Player

Digital Coaxial

Audio Input

Digital Optical

Audio Input

Power Supply

COAX IN OPTI. IN

DC

5V

SERVICE

OPTI. OUT COAX OUT

Digital Optical

Audio Output

Digital Coaxial

Audio Output

AV Receiver and Speakers

6

8. SPECIFICATIONS

Input Ports

Output Ports

Power Supply

ESD Protection

1×Coaxial, 1×Optical

1×Coaxial, 1×Optical

5 V/2.6 A DC (US/EU standards, CE/FCC/UL certified)

Human body model:

±8 kV (air-gap discharge)

±4 kV (contact discharge)

Dimensions

Weight

Chassis Material

50 mm (W)×85 mm (D)×22.5 mm (H)/

Jack Excluded

51 mm (W)×98 mm (D)×22.5 mm (H)/

Jack Included

61 g

Metal

Color Black

Operating Temperature 0˚C~40˚C/32˚F~104˚F

Storage Temperature

Relative Humidity

Power Consumption

−20˚C~60˚C/−4˚F~140˚F

20~90% RH (non-condensing)

0.7 W

7

9. ACRONYMS

ACRONYM

COAX

LPCM

OPTI

USB

COMPLETE TERM

Coaxial

Linear Pulse-Code Modulation

Optical

Universal Serial Bus

8

CYPRESS TECHNOLOGY CO., LTD

Home page: http://www.cypress.com.tw