HDP HD-SDI/SDI To DVI-D and Audio Converter User Manual April 6, 2007 P/N 101657
Trademarks AJA, Io, and Kona are trademarks of AJA Video, Inc. DVI is a registered trademark of DDWG. E-DDC and E-EDID are registered trademarks of VESA. All other trademarks are the property of their respective holders. Notice Copyright © 2006 AJA Video, Inc. All rights reserved. All information in this manual is subject to change without notice.
AJA HDP HD-SDI/SDI to DVI-D and Audio Converter User Manual — Introduction Introduction The HDP is a miniature HD-SDI/SDI to DVI-D converter for LCD or Plasma monitors. Using a very high quality scaling engine, the HDP will automatically size 4 x 3 or 16 x 9 inputs to many DVI-D monitors. For appropriate monitor configurations, scaling is automatically 1 to 1—for example, displaying 1920 x 1080 video on a WUXGA (1920x1200) monitor.
About Monitor Compatibility The HDP is designed to work with most DVI-D monitors. The HDP uses the industry standard EDID communication protocol (within the DVI link) to communicate with the monitor, and then adjust the DIP’s internal scaling engine to scale the input video to the native resolution of the monitor. However, due to the hundreds of variations of DVI formats currently in use, proper operation with all monitors cannot be guaranteed.
AJA HDP HD-SDI/SDI to DVI-D and Audio Converter User Manual — Video Scaling VESA Mode For DVI-D monitors not on the recommended list, the HDP will use standard VESA timing based on the particular monitors “preferred timing”—as determined by the EDID communication with the monitor. Because VESA timing standards are not based on video formats, the HDP cannot frame lock to the input video and will operate like a frame synchronizer - it will frame rate convert by adding or dropping frames as needed.
Vertical Locking Depending on the input frame rate and the capabilities of the monitor in use, the HDP will provide a vertically locked signal to the monitor. Because most DVI monitors have their own internal scaling, the internal scaler of the monitor may or may not lock vertically to the HDP output. The recommended monitor list shown below lists only monitors which have been tested for proper vertical lock.
AJA HDP HD-SDI/SDI to DVI-D and Audio Converter User Manual — I/O Connections I/O Connections 2 Channel Unbalanced Analog Audio (RCA Jacks) SD/HD-SDI Input BNC 1 SD/HD-SDI Loop Output 1 Output DVI Connector SD/HD-SDI Loop Output 2 + 5-18VDC Power Input HDP Converter User Controls HDP DIP Switches The user interface for the HDP is a 4-switch DIP accessible through a cut-out in the bottom of the unit.
Switch 1 SCALE—Turns Scaling On or Off : ON OFF Normal Operation Turns scaling off; the picture will output 1:1. Note: only works when it is possible to display the entire unscaled raster For example, it is not possible to display a 1920 x 1080 input on a 1600 x 1200 monitor. Use a 1920 x 1200 (WUXGA) monitor for optimal performance. 1:1 scaling will then be supported for all input formats.
AJA HDP HD-SDI/SDI to DVI-D and Audio Converter User Manual — Installation Internal Jumper Jumper #1 (default = removed) Jumper #2 (default = removed) Jumper #3 (default = installed) Installed: Anamorphic SD. SD sources will be scaled appropriately based on 16x9 original content. Installed: 1080p Mode 1080p will be output when DIP switch 4 is in the ON position. This jumper has no effect when switch 4 is in the OFF position. This jumper is provided as a spare.
Specifications Item Specification Inputs SMPTE-259/292/296 SDI/HD-SDI Input Formats 1080i, 1080p, 720p, 525i, 625i Video Input HD-SDI/SDI, SMPTE-259/292/296/274 Outputs DVI-D (E-DDC and E-EDID compatible) Audio (2 channel RCA-style outputs) @ -10dBV nominal 2 Looping SDI outputs of the SDI inputs Supported Output Displays (native resolution) 800 x 600 — SVGA 848 x 480 — Plasma 852 x 480 — Plasma 1024 x 600 — WSVGA 1024 x 768 — XGA 1280 x 720 — HDTV (720p) 1280 x 768 — WXGA 1280 x 960 — 4:3 SXG
