OSEE ADC6820N User manual

ADC6820Nxx Audio A/D
Converter
USER MANUAL

Product Information
Model: ADC6820N Audio A/D Converter
ADC6820NS Audio A/D Converter
ADC6820N4 Audio A/D Converter
ADC6820NS4 Audio A/D Converter
Version: V010000
Release Date: June 5th, 2008
Company
OSEE TECHNOLOGY CO., LTD.
Contact Information
Address: No.22 Building, No.68 zone, Beiqing Road, Haidian District,
Beijing, China
Post Code: 100094
Tel: [phone]
Fax: [phone]
Web: http://www.osee-dig.com/
E-mail: [email protected]

Contents
Chapter 1 Introduction ............................................................................................ 1
Overview............................................................................................................................................ 1
Features.............................................................................................................................................. 1
Module Descriptions .......................................................................................................................... 2
The Front Part of Module........................................................................................................... 2
Back Connector.................................................................................................................................. 3
ADC6820Nxx ............................................................................................................................ 3
Signal Flow ........................................................................................................................................ 4
Chapter 2 Installation.............................................................................................. 5
Overview............................................................................................................................................ 5
Maximum Power Ratings for Frame.................................................................................................. 5
Unpacking the Module....................................................................................................................... 5
Preparing the Product for Installation ........................................................................................ 5
Check the Packing List............................................................................................................... 6
Installing the Module ......................................................................................................................... 6
Making the Connections .................................................................................................................... 7
Removing the Module........................................................................................................................ 7
Setting Jumper.................................................................................................................................... 8
LED Indicator .................................................................................................................................... 9
Output Select Mode ................................................................................................................... 9
General Mode............................................................................................................................. 9
Chapter 3 Operation and Control.......................................................................... 10
Switches and Keys ........................................................................................................................... 10
Chapter 4 Specifications....................................................................................... 16
Analog Audio input.......................................................................................................................... 16
Unbalanced AES/EBU Audio output ............................................................................................... 16
Balanced AES/EBU Output ............................................................................................................. 16
External Reference Input ................................................................................................................. 18
Warranty for osee product................................................................................... 19
What the warranty covers: ............................................................................................................... 19
What the warranty does not cover:................................................................................................... 19

DC6820NXX AUDIO A/D CONVERTER USER MANUAL
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ADC6820Nxx Audio A/D Converter
Chapter 1 Introduction
Overview
Four modules will be introduced in Table 1-1 as follows.
Table 1-1 The Description of Audio Processing Module for A/D Converter
Module name Description
ADC6820N 2-chanel balanced analog audio inputs, 2-channel balanced and
unbalanced digital audio outputs respectively, the function of
audio delay
ADC6820N4 4-chanel balanced analog audio inputs, 2-channel balanced and
unbalanced digital audio outputs respectively, the function of
audio delay
ADC6820NS 2-chanel balanced analog audio inputs, 2-channel balanced and
unbalanced digital audio outputs respectively, the function of
audio delay and tracking.
ADC6820NS4 4-chanel balanced analog audio inputs, 2-channel balanced and
unbalanced digital audio outputs respectively, the function of
audio delay and tracking
Each module can provide 1-channel balanced or unbalanced DARS input, 1-channel Ref input, users can
select one of them as synchronization signal. Each module can generate fixed-rate tone signal and
provide flexibility in audio sampling and delay setting.
Features
The ADC6820Nxx offers the following features:
Convert analog audio input into balanced and unbalanced digital audio output
2/4 channel audio inputs, 2 channel balanced and unbalanced digital audio outputs respectively
Selectable delay and synchronizing mode
Either DARS or Ref can be selected as synchronized signal
flexibility in audio sampling, and can provide 16-bit, 20-bit, 24-bit sampling setting
Generating two fixed-frequency audio signals
-96 ~ +12dB audio gain range adjustment
flexibility in delay setting, and the maximum is 1980ms @ 32KHz manual delay

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Local or remote control and monitoring
Provide audio tracking function, only valid for ADC6820NS and ADC6820NS4
FCC Caution:
Any Changes or modifications not expressly approved by the party responsible for compliance could
void the user's authority to operate the equipment.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in
a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
Module Descriptions
The Front Part of Module
Figure 1-1 shows the board of ADC6820Nxx
Fig. 1-1 the Board of ADC6820Nxx

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Back Connector
ADC6820Nxx
Fig.1-2 Back Connector of ADC6820Nxx
Tab. 1-2 description of ADC6820Nxx Back Connector
Item Description
AESO1, AESO2
(BNC connector)
AES/EBU unbalanced digital audio output
AESO1, AESO2
(3-pin audio connector)
AES/EBU balanced digital audio output
DATA IN audio tracking input, only valid for ADC6820NS and
ADC6820NS4
DARS/REF AES/EBU unbalanced digital audio synchronized input or
black burst synchronized input（see setting jumper for more
information）
DARS IN AES/EBU balanced digital audio synchronized input
ANALOG AUDIO IN
1A,1B
Analog audio input
ANALOG AUDIO IN
2A,2B
Analog audio input, only valid for ADC6820N4(S)

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Signal Flow
Fig. 1-3 Signal Flow of ADC6820N
Fig. 1-4 Signal Flow of ADC6820NS
Fig. 1-5 Signal Flow of ADC6820N4

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Fig. 1-6 Signal Flow of ADC6820NS4
Chapter 2 Installation
Overview
The power consumption for module and the maximum power ratings that frame can sustain have to be
confirmed before installing the module.
In this chapter, the following topics on installation process for ADC6820Nxx are discussed below:
Unpacking the module
Setting Jumper
Installing the module
Making the connections
Removing the module
Maximum Power Ratings for Frame
The maximum power ratings that different types of frames can sustain are listed in the Table 2-1
Tab. 2-1 Maximum Power Consumption
Frame Maximum Voltage Redundant Power Supplies Numbers of Slots
6800N-1U 40W Yes 4
6800N-2U 60W Yes 10
Unpacking the Module
Preparing the Product for Installation
Contact your dealer right now if any items are missing.

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Follow the procedures below before installing the module:
Check the equipment for any invisible damage that may have occurred during transit.
Confirm all the items listed on the packing list have been received.
Remove all the packing material including electrostatic-resistant packing.
Retain these packing for future use.
Check the Packing List
Tab. 2-2 Packed Components
Model Name Description
ADC6820N ADC6820N module (1pc); back connector (1pc), and other accessories
ADC6820NS ADC6820NS module (1pc); back connector (1pc), and other accessories
ADC6820N4 ADC6820N4 module (1pc); back connector (1pc), and other accessories
ADC6820NS4 ADC6820NS4 module (1pc); back connector (1pc), and other accessories
Installing the Module
Caution：Static electricity may cause sensitive semiconductor out of order. Avoid installing
or removing the module in the electrostatic-induced environment.
Follow the following steps to install the module:
Step 1
Step2
Step3