AJA UDC User Manual
Installation & Operation Guide
Version 2.3r1
Published: July 3, 2014
Table of Contents
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Contacting Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Chapter 1: Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Video Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
I/O Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Conversion Mode Discussion and Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Upconvert Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Selection Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Downconvert Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Selection Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
SD Aspect Ratio Convert. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Selection Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
User Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Using DIP Switches to Control the UDC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
DIP Switch Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
DIP Switches 4 & 5 (FMT0, FMT1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chapter 2: MiniConfig Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
USB Control and Setup—Using AJA MiniConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installing MiniConfig on a Mac. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installing MiniConfig on a PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Running MiniConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PC Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mac Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Saving Setups . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating MiniConfig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Tabbed Screens. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Video Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
HDMI Tab Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Audio Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Update Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Software Update Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Info Tab Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Appendix B: Safety and Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Federal Communications Commission (FCC) Compliance Notices . . . . . . . . . . . . . . . . . . 23
Class B Interference Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
FCC Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Canadian ICES Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
European Union and European Free Trade Association (EFTA)
Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Korean KCC Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Taiwan Compliance Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Recycling Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Translated Warning and Caution Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Before Operation Please Read These Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
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Notices
Trademarks
AJA®, lo®, Ki Pro®, KONA®, KUMO®,T-TAP®, Because it matters.® and ROI® are registered
trademarks of AJA Video Systems, Inc. in the United States. AJA and Ki Pro are trademarks
of AJA Video Systems, Inc. registered in other countries. AJA Control Room™, CION™,
Corvid Ultra™, FiDO™, Science of the Beautiful™, TruScale™, TruZoom™, V2Analog™ and
V2Digital™ are trademarks of AJA Video Systems, Inc.
AirPort, Apple, Apple logo, AppleShare, AppleTalk, FireWire, iPod, iPod touch, Mac and
Macintosh are registered trademarks of Apple Inc. Final
QuickTime
Avid, Avid DNxHD and Media Composer are registered trademarks of Avid Technology,
Inc.
HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing, LLC.
DVI is a registered trademark of DDWG.
logo are trademarks of Apple Inc.
Cut Pro, QuickTime and
Copyright
Contacting Support
Telephone: +1.530.271.3190
FAX : +1.530.271.3140
Web: http://www.aja.com
Support Email: support@aja.com
TASCAM is a registered trademark of TEAC Corporation.
All other trademarks are the property of their respective holders.
Copyright © 2014 AJA Video Systems, Inc. All rights reserved. All information in this
manual is subject to change without notice. No part of the document may be
reproduced or transmitted in any form, or by any means, electronic or mechanical,
including photocopying or recording, without the express written permission of AJA
Video Systems, Inc.
When calling for support, have all information at hand prior to calling.
To contact AJA for sales or support, use any of the following methods:
Sales Email: sales@aja.com
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Chapter 1: Introduction
Overview
Video Formats
Features
The UDC is a broadcast quality Up/Down/Cross Mini-Converter that can convert between
SD, HD, and 3G-A video formats. Borrowing from AJA’s industry leading conversion
technology used in our model FS2, the UDC provides very high quality conversions at a
low price. The UDC also supports 16-channel embedded SDI audio. I/Os include SD/HD/
3G SDI Input and Output, HDMI output, and 2-channel RCA-style audio output. The UDC
can be controlled by local DIP switches with additional control available via USB and
AJA’s Mini-Config application. A Reference Input allows the video output to be timed to a
local reference.
The UDC does not convert frame rates—it works with the input frame rate. The only
exception is a 3:2 function where 23.98 is converted to 59.94 (and 24 is converted to 60).
If a reference is provided, it must be in the same frame rate hierarchy as the input video
(e.g., 23.98/29.97/59.94, 25/50, or 24/30/60).
• Converts between SD, HD, and 3G HD formats
NOTE: UDC converts 3G-A formats only. It does not input or output 3G-B.
• Supports 1080p50/60
• Very high quality conversions
• 16-channel embedded SDI audio input
• 16-channel embedded SDI audio output
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Block Diagram
Up,
Down,
and
Cross
Converter
Audio
D/A
Video
Audio
HDMI
Transmitter
Video with Embedded Audio
2-Channel
Analog Audio
Monitor Output
HDMI 1.4a Output
with Embedded
Audio
SD/HD/3G-SDI IN
SD/HD/3G-SDI Output
SDI Receiver
Reference Input
USB Port
(connect to PC or Mac)
Selects 8 or 10-bit Video
and other Functions
Genlock
SD/HD/3G-SDI
+ 5 VDC
Power
Input
2-Channel
Unbalanced
Analog Audio
(RCA-style Jacks)
HDMI Output
Input 1 BNC
Reference Input
USB
Port
LOCK LED
SD/HD/3G-SDI
Output
• 8-channel HDMI output audio
• 2-channel RCA-style analog outputs at -10dBV (nominal)
• Reference Input
• Configurable via DIP switch or USB port and supplied Mini-Config software
• Uses universal input +5V power supply AJA model DWP-U-R1 (included)
•5-year warranty
Figure 1. UDC Mini-Converter, Simplified Block Diagram
I/O Connections
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Figure 2. UDC Mini-Converter
NOTE: The LOCK LED indicates by color the detected signal type. Green is SD-SDI, red is HD-SDI, and
amber/orange is 3G-SDI. Off indicates no input.
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Full Screen
4:3 Pillar
LB to Full
14:9 Pillar
Wide Zoom
16
9
4
3
4:3 Upconverts To These displays on 16:9
Conversion Mode Discussion and Examples
Upconvert Mode The UDC allows you to select the type of Upconversion performed on an SD source input.
This mode is in effect only when the input is SD (525i or 625i) and the selected output
format is HD (720p, 1080i, or 1080p).
Figure 3. Upconvert Mode Examples
Selection Description Full Screen – 4x3 image is stretched horizontally to fill a 16x9 frame.
4x3 Pillar – 4x3 image at center screen with black sidebars.
LB to Full – 4x3 letterboxed image is scaled to fit horizontally in a 16x9 frame. Black bars
top and bottom are cropped off.
14x9 Pillar (default) – 4x3 image is scaled to create a 14x9 image with black sidebars and
slightly cropping top and bottom of original image.
Wide Zoom – A combination of scaling and stretching is used to fit to a 16x9 frame.
Slight cropping of top and bottom and a small aspect ratio change
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16
9
Anamorphic
Letterbox
4
3
16:9 Downconverts To These displays on 4:3
Crop
14:9
Downconvert Mode This mode determines the type of Downconversion performed on the selected HD
source input. See the following Downconvert Illustrations for Downconversion examples.
This mode is in effect only when the input is HD (720p, 1080i, or 1080p) and the selected
output format is SD (525i or 625i).
Figure 4. Downconvert Mode Example
Selection Description Letterbox – Image is reduced with black top and bottom added to image area, with the
aspect ratio preserved.
Crop (default) – Image is cropped to fit new screen size.
Anamorphic – HD image is converted to full-screen SD with a 16x9 aspect ratio
(anamorphic).
14:9 – Image is reduced slightly with aspect ratio preserved. Black is added top and
bottom, and the left and right sides are cropped.
Auto AFD – Automatically selects the best Downconvert mode based on the input
video's Active Format Description (AFD) code.
Active Format Description (AFD) codes are carried in the vertical ancillary (VANC)
portion of HD SDI video signals, specified in SMPTE 2016 as follows: “AFD information
is intended to guide DTV receivers and/or intermediate professional video
equipment regarding the display of video of one aspect ratio on a display of another
aspect ratio.”
In the UDC Downconverter, the AFD code on the video input can be used to guide
the Downconverter in choosing which mode to use to best display the important
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H Crop
Pillarbox
V Crop
14:9
Off
(no conversion)
Letterbox
4
3
4:3 Converts To These displays on 4:3
content of the16:9 HD input video on the 4:3 SD output. For example, if the input
AFD code is 10 (Full Frame), it means that the input video has important picture
information throughout the full 16:9 frame, so the Downconverter should use
Letterbox mode to be sure none of the content is cropped off. An AFD code of 9
(Pillarbox) says that the input video only has content within the center 4:3 area of the
picture (usually because it originally came from an Upconverted SD signal) so the
Downconverter Crop mode would be the best choice. There are 16 possible HD AFD
codes, of which 8 are in common use. The UDC does not process or use SD AFD
codes.
SD Aspect Ratio Convert
This mode selects the type of SD-to-SD Aspect Ratio Conversion (ARC) performed on an
incoming selected SD source. This mode is in effect only when the input and output are
both SD (525i or 625i). (In Europe 16:9 anamorphic video is also known as “wide screen”
video.)
Figure 5. SD Aspect Ratio Conversion Examples
Selection Descriptions Off–Turns aspect ratio conversion Off.
Letterbox–Converts 16:9 Anamorphic video to Letterbox video.
H Crop–Converts 16:9 Anamorphic video to 4:3 Standard video (crops left and right
edges of video).
Pillarbox–Converts 4:3 Standard video to 16:9 Anamorphic video.
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