DA5325
8-Channel Audio
Sample Rate Converter
Document No. 14812
November 2004
14812 • November 2004 • Front Matter
SIGMA ELECTRONICS's products are certified to comply with the regulations
and recommendations of several certifying agencies.
For complete details, as well as copies of the certification documents, please
visit our website at www.sigmaelectronics.com or contact us using the Technical
Support contacts listed elsewhere in this document.
SYMBOLS
The presence of this symbol in or on SIGMA ELECTRONICS equipment means
that it has been designed, tested and certified as complying with applicable
Underwriter's Laboratory (USA) regulations and recommendations.
The presence of this symbol in or on SIGMA ELECTRONICS equipment means
that it has been designed, tested and certified as essentially complying with all
applicable European Union (CE) regulations and recommendations.
COPYRIGHT AND TRADEMARKS
Copyright © 2004, SIGMA ELECTRONICS, Inc. All rights reserved. Printed in USA.
SIGMA ELECTRONICS is a registered trademark of SIGMA ELECTRONICS, Inc.
DISCLAIMER OF LIABILITY
Contents of this publication are current as of the publication date. SIGMA
ELECTRONICS reserves the right to change the contents without prior notice.
In no event shall SIGMA ELECTRONICS be liable for any damages
resulting from loss of data, loss of use, or loss of profits and SIGMA
ELECTRONICS further disclaims any and all liability for indirect,
incidental, special, consequential or other similar damages. This
disclaimer of liability applies to all products, publications, and services
during and after the warranty period.
SIGMA ELECTRONICS
P.O. Box 448
East Petersburg, PA 17520, USA
In USA and Canada: 1-866-569-2681
Outside USA and Canada: 717-569-2681
FAX: 717-569-4056
Email: sales@sigmaelectronics.com
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14812 • November 2004 • Front Matter
CUSTOMER APPRECIATION STATEMENT
Sigma Electronics, Inc.would like to take this opportunity to compliment you on
your intelligent selection of high-quality audio or video equipment. It is our goal
to provide the highest quality products and unparalleled service to all of our
customers. Please contact us, as shown below, if you have any questions
about, or suggestions for, any of our products.
TECHNICAL SUPPORT
SIGMA ELECTRONICS has made every effort to ensure that the equipment
you receive is in perfect working order. In the event that problems arise which
you cannot resolve, or if there are any questions regarding this equipment or
information about other products manufactured by SIGMA ELECTRONICS,
please contact your local representative or contact SIGMA ELECTRONICS
directly through one of the appropriate means listed below:
Telephone:* Main Number - 1-717-569-2681*
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Sales - 1-866-569-2681/1-717-569-2681
Facsimile:
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Sales - 1-717-569-4056
Email:
Technical Support - service@sigmaelectronics.com
Sales - sales@sigmaelectronics.com
Web Site:
http://www.sigmaelectronics.com
Mail:
SIGMA ELECTRONICS
P.O. Box 448
East Petersburg, PA 17520, USA
Shipping:* SIGMA ELECTRONICS
1027 Commercial Avenue
East Petersburg, PA 17520, USA
* Return Authorization required before any equipment is returned.
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14812 • November 2004 • Front Matter
Page iv
14812 • November 2004 •
Contents
Introduction/Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Product scope - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Receiving Inspection and Unpacking - - - - - - - - - - - - - - - - - - - - - - - - - - - - - System Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Frame - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Interface Components - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Power - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Modules - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Module Installation/Removal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Module Installation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Module Removal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Connector Assignment - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Reference Signals - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Reference Signal Format Setup- Switch Configuration - - - - - - - - - - - - - - - - - External Reference Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Internal Reference Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Operation - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Front Panel Controls/Displays - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Indicator LED’s - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Controls - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7-SEGMENT DISPLAY - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Technical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
DA5325 8-Channel Audio Sample Rate Converter
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14812 • November 2004 •
Page vi
DA5325 8-Channel Audio Sample Rate Converter
14812 • November 2004 • Introduction/Overview
INTRODUCTION/OVERVIEW
The DA5325 8 Channel Audio-Sample Rate Converter Module is a member of the Sigma
5000 series OCTASTREAM™product line. The DA5325 is to be used in facilities utilizing
AES digital audio signals that must be retimed to match a reference signal while maintaining a perfect phase relationship.
PRODUCT SCOPE
This module has the capability to have its output sample rate steered by an internal reference provided by the S5000 Signal Management Frame or an external reference attached
to the reference input on the DA5325 or the Video Reference BNC on the S5000. The reference provided may be any valid NTSC or PAL video signal or an AES digital audio signal.
Additionally, when a signal is supplied to the frame via the Video Reference BNC, the
CI5705 Communications Interface generates an Internal AES Clock Reference pulse that
is distributed to every module. This pulse may also be used to steer the output sample rate.
RECEIVING INSPECTION AND UNPACKING
By the time you have found and opened this manual, you have already begun to unpack
the shipping container. Since damage may have occurred in shipping it is important to perform the following checks immediately:
• Inspect the shipping container(s) for damage.
• If you find any damage to the containers, carefully inspect the product for
damage.
• If any damage is discovered, notify the shipping carrier immediately.
Compare what you received against the packing slip. If anything is missing or has
suffered damage unrelated to shipping, contact SIGMA ELECTRONICS
Technical Support immediately. Contact information is located at the front of this
manual.
SYSTEM COMPONENTS
Frame
The DA5325 module is engineered to operate in a Sigma S5000 Signal Management
Frame. This frame provides all the necessary interface components and power for opera-
DA5325 8 Channel Audio-Sample Rate Converter
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14812 • November 2004 • System Components
tion of the DA5325 module. The Sigma S5000 frame is 100% compatible with the NVision
NV500 frame which will also accept the DA5325.
Interface Components
To accommodate a variety of connector requirements necessary for the signal formats
accepted by the S5000 Signal Management System, a number of backplanes are available. The DA5325 requires either an RP302 Twisted Pair I/O or RP303 BNC I/O Backplane.
Each S5000 Signal Management System frame is supplied with two (2) backplanes. The
required backplane(s) is specified at the time of order. If an existing frame does not have
the required backplane, replacement backplanes are available from Sigma Electronics and
can easily be installed in the field.
Power
The S5000 Signal Management System frame provides the required power to operate the
DA5325 via the backplane adapter. Dual power supplies are available for redundant applications.
Modules
The DA5325 consists of a single-slot card containing a front panel interface of switches,
indicator LED’s and a four-digit, seven-segment LED display. Via this interface all configuration settings and status indications are available to the user.
Optionally, if a CI5705 Communications Interface Adapter is installed in the S5000 Signal
Management System frame, the DA5325 may have its sample rate steered by reference
video or audio signals introduced into the frame. This reference is provided to the CI5705
via the BNC labelled “VIDEO REF” on the rear of the S5000 frame.
Page 2
DA5325 8 Channel Audio-Sample Rate Converter
14812 • November 2004 • Module Installation/Removal
MODULE INSTALLATION/REMOVAL
The DA5325 may be installed in any module slot in a S5000 Signal Management System
Frame. Up to ten (10) modules of any type may be installed in the same frame. Modules
may be hot-swapped eliminating the need to power down the entire frame during replacement.
Modules are held in place by a combination of the retention force of the cardedge connector pins and the motion restriction afforded by the proper installation of the frame front door.
Caution: For proper cooling, the frame door must remain closed. The door may
be opened for a short time, but irregular performance may occur. The
temperature and performance will stabilize again within 5 minutes after the door
is closed.
Module Installation
1. Verify that the appropriate backplane is installed in the frame.
2. Remove front door from frame.
3. Insert module into any slot.
4. Holding knurled knob, push until module is completely seated in
cardedge connector on backplane.
5. Reinstall front door (required for proper operation of S5000 Signal
Management System frame).
Module Removal
1. Remove frame front panel.
2. Firmly grasp knurled knob on front of module.
3. Pull module out of slot.
CONNECTOR ASSIGNMENT
Because the flexibility of the S5000 Signal Management System frame allows a module to
be inserted into any slot position of an appropriate back plane (see Interface Components
above), the function of the back plane connectors will vary depending upon the module
inserted. The connector assignments for the DA5325 are shown in the following figure.
DA5325 8 Channel Audio-Sample Rate Converter
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14812 • November 2004 • Connector Assignment
RP303 BACKPLANE CONNECTOR ASSIGNMENTS - DA5325
B
C
REFERENCE
INPUT
N/C
AES
INPUT
1
D
E
F
AES
AES
AES
INPUT INPUT INPUT
4
3
2
G
H
I
J
AES
OUTPUT
1
AES
OUTPUT
2
AES
OUTPUT
3
AES
OUTPUT
4
AES
EM0303-00
A
RP303 BNC I/O
RP302 BACKPLANE CONNECTOR ASSIGNMENTS - DA5325
B
C
REFERENCE
INPUT
N/C
AES
INPUT
1
D
E
F
AES
AES
AES
INPUT INPUT INPUT
2
3
4
G
H
I
J
AES
OUTPUT
1
AES
OUTPUT
2
AES
OUTPUT
3
AES
OUTPUT
4
AES
EM0302-00
A
RP302 Twisted Pair I/O
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DA5325 8 Channel Audio-Sample Rate Converter
14812 • November 2004 • Reference Signals
REFERENCE SIGNALS
As a sample rate converter, the DA5325 is dependant upon a reference signal which is
used to set the rate to which the data from the inputs will be converted.
The DA5325 has two modes of operation which determine from where the reference is
selected. The two modes are identified as External Reference and Internal Reference.
External References are any video or AES audio signal provided to the DA5325 module to
be used as the reference to set the data rate. A DA5325 which is operating with an External
Reference must have been properly configured prior to installation in the S5000 frame (see
REFERENCE SIGNAL FORMAT SETUP- SWITCH CONFIGURATION below). These signals may be provided to the modules through the backplane connector into which the
DA5325 module is installed or, in the special case of a video reference signal connected to
the Video Reference BNC on the rear of the S5000 frame, by the CI5705 which distributes
the signal throughout the frame for use by any installed DA5325 module.
Internal Reference is an internally generated reference pulse distributed through the S5000
frame by the CI5705 module for use by any OctaStream module installed in the frame. The
timing for this signal will be based upon the signal connected to the Video Reference BNC
on the rear of the S5000 frame
REFERENCE SIGNAL FORMAT SETUP- SWITCH CONFIGURATION
Note: Any DA5325 installed into an S5000 frame, or has power cycled to it,
automatically defaults to the External Reference mode. The DA5325 must be
configured prior to installation in the frame identifying the source of the signal used
to steer the sample rate ouput. The following procedure details the switch setting
needed for each type of valid reference signal.
The DA5325 can accept a wide variety of reference signal formats. Signals adhering to any
of the following formats are acceptable reference signalsa.
NTSC Video
b.
PAL Video
c.
AES digital audio
These reference signals can be introduced into the DA5325 through a number of different
interfaces. The reference signal can come from a.
The Video Reference BNC on the rear of the S5000 frame (requires CI5705).
Note: Any time a video reference signal is distributed throughout the
S5000 frame, all modules in the frame should be configured to have Hi-Z
DA5325 8 Channel Audio-Sample Rate Converter
Page 5
14812 • November 2004 • Reference Signal Format Setup- Switch Configuration
inputs except one, which should be terminated (see Table 1 below).
b.
The reference input on the backplane into which the DA5325 is plugged. There
are two rear backplanes that accept the DA5325 - the RP302 Twisted Pair I/O or
RP303 BNC I/O Backplane.
External Reference Setup
Reference signals to be used as an External Reference are supplied to the module via the
edgecard connector at the back of the module. Because they are sourced from different
locations, the module must be configured to accept the signal from the appropriate location. This is done by setting a DIP switch on the module. The switch (S2) is located towards
the rear of the module. The ON position is when the switch is pushed toward the front
panel.
Table 1 below, indicates the switch setting necessary to configure the DA5325 for proper
operation with the External Reference signal being used.
Table 1. External Reference Configuration Settings
SWITCH S2 POSITION S2-1
SIGNAL FORMAT
*VIDEO - NTSC or PAL
AES Digital Audio
INTERFACE
S2-2
X= ON
S2-3
S2-4
O= OFF
S5000 Video Ref BNC- Terminated
X
X
O
O
S5000 Video Ref BNC- HiZ (default)
O
X
O
O
RP303 Backplane - BNC
O
O
X
X
RP302 Backplane - 3-Pin Terminal Blk
X
O
X
O
RP303 Backplane - BNC
O
O
O
X
RP302 Backplane - 3-Pin Terminal Blk
O
O
O
X
* Sample rate of all outputs defaults to 48kHz when video signal is used as a reference.
Internal Reference Setup
Internal Reference mode uses the internally generated reference pulse from the CI5705
which is based on the signal connected to the Video Reference BNC on the rear of the
S5000 frame. The Internal Reference mode is only available when selected via the front
panel of the DA5325 after installation. To select Internal Reference, press the SELECT button and then the TAKE button.
In this mode, all settings on S2 are ignored and the termination status of all modules should
be Hi-Z.
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DA5325 8 Channel Audio-Sample Rate Converter
14812 • November 2004 • Operation
OPERATION
Front Panel Controls/Displays
The front panel, shown below, has three distinct functional areas - the Indicator LED’s
under the OctaStream logo on the right side; the switch controls, mostly on the left side and
the 7-segment display in the middle.
INDICATOR LED’S
LED’s are visible from the exterior of the frame when the front door is installed to accommodate checking the status of the modules without affecting the operating conditions within
the frame. The LED’s provide information about the status of three operating conditions Rreference Error status, Reference Lock status and power bus status.
1. ERROR - When this red LED is illuminated, there is no valid reference signal being
detected by the DA5325.
2. LOCK - This green LED indicates the DA5325 is locked to the reference signal,
whether internal or external reference has been applied.
3. POWER - This green LED indicates the presence of suitable power being supplied
to the module by the power supply in the S5000 frame.
CONTROLS
SELECT BUTTON
The Select button is used to toggle between the Internal and External Reference modes. If the display is showing the source of a reference signal to which
the DA5325 is not currently locked, the display will have dots displayed on all
characters. The DA5325 switches to the new reference only after the TAKE button is pressed and the dots are extinguished.
DA5325 8 Channel Audio-Sample Rate Converter
Page 7
14812 • November 2004 • Technical Specifications
UP & DOWN BUTTON
These are non-functioning in the current version of this product.
TAKE BUTTON
The Take button is used to change the reference to the source indicated on the
display.
7-SEGMENT DISPLAY
The 7-segment display is used to display the source of the reference signal. If the display is
showing the source of a reference signal to which the DA5325 is not currently locked, the
display will have dots displayed on all characters. When the source of the reference signal
is switched, by pressing the TAKE button, the dots are extinguished.
This display only has two outputs
and
. The
display indicates that the
DA5325 is currently using the internal AES clock reference distributed throughout the
frame by the CI5705 Communications Interface. To access any other reference source the
display should be set to
(and the appropriate switch selection should have been
made prior to insertion of the module into the frame).
If power is cycled to the unit, the module will always come up in the external reference
mode
. To restore the module to the internal reference mode, press SELECT, thenpress the TAKE button which will extinguish the surrounding dots which were indicating
that the mode change was pending.
TECHNICAL SPECIFICATIONS
Frequency Response .................. +/-0.01dB 20Hz to 20kHz
Dynamic Range............................ 128dB
THD&N......................................... -121dB 20Hz to 20kHz
Converter Resolution ................... 24 bits
Propagation Delay........................ 1.125ms
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DA5325 8 Channel Audio-Sample Rate Converter
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