J-Tech Digital JTD-820 User manual

USER MANUAL
J-TECH DIGITAL INC
12803 PARK ONE DRIVE
SUGAR LAND, TX 77478
TEL: [phone]
E-MAIL: [e-mail]
DIGITAL TO ANALOG AUDIO DECODER
JTD-820

2
Table of Contents
1. Introduction .................................................................3
2. Features........................................................................4
3. Specifications...............................................................5
4. Package Contents......................................................... 6
5. Panel Descriptions .......................................................7
6. Connection Diagram ....................................................8

3
1. Introduction
The Digital to Analog Audio Decoder features an integrated
24 bit audio DSP. This unit can decode a variety of digital
audio formats, including Dolby Digital (AC3), DTS and PCM.
It can simply connect an Optical (Toslink) or Digital Coaxial
Cable to the input, then the decoded audio can be transmitted
as 2 channel analog audio via the Stereo RCA output or the
3.5mm output (suitable for headphones) simultaneously.

4
Manufactured under license from Dolby
Laboratories. Dolby and the double-D symbol are trademarks
of Dolby Laboratories.
For DTS patents, see http://patents.dts.com. Manufactured
under license from DTS Licensing Limited. DTS, the Symbol,
DTS and the Symbol together, and Digital Surround are
registered trademarks or trademarks of DTS, Inc. in the
United States and/or other countries. © DTS, Inc. All Rights
Reserved.

5
2. Features
¾Decode Dolby Digital (AC3), DTS or PCM digital audio
to stereo audio output.
¾Support PCM 32KHz.44.1KHz, 48KHz, 88.2KHz,
96KHz, 176.4KHz, 192KHz sample frequency audio
decode.
¾Support Dolby Digital 5.1 channels, DTS-ES6.1 channels
audio decode.
¾No need to install drivers. Portable, flexible, plug and
play.

6
3. Specifications
Input Ports: 1 x Optical (Toslink), 1 x Digital Coaxial
Output Ports: 1 x RCA (L/R), 1 x 3.5mm (Headphone)
Signal to Noise Ratio: 103db
Degree of Separation: 95db
Frequency Response: (20Hz ~ 20KHz) +/- 0.5db
Dimensions: 72mm(D)x55mm(W)x20mm(H).
Weight : 40g

7
4. Package Contents
Before using this unit, please check the packaging and make
sure the following items are contained in the shipping carton:
1) Audio Decoder ---------------1PCS
2) 5V/1A DC Adaptor----------------------1PCS
3) User Manual -------------------1PCS

8
5. Panel Descriptions
Please study the panel drawings below and be familiar with
the signal input(s), output(s) and power requirements.
Back Panel Top Panel Front Panel

9
6. Connection Diagram
1. Connect a source (e.g. Blu-Ray Player, game console,
A/V Receiver, etc.) to the audio Decoder’s SPDIF input
port by fiber cable or Coaxial input port by coaxial cable.
2. Connect a headphone or analog audio amplifier to the
audio output port on the Decoder.
3.Power on the Decoder and select the switch to your
need audio input port.
4. LED Status Indicator
Red always: PCM decoder or No signal
Red blinking: Dolby decoder
Green blinking: DTS decoder

10

WWW.JTECHDIGITAL.COM
PUBLISHED BY J-TECH DIGITAL, INC.
12803 PARK ONE DRIVE
SUGAR LAND, TX 77478