GUIDE TO INSTALLATION AND OPERATION
SDM-874p | 1
1 SDM-874p SD/HD Serial Digital to DVI Converter
1.1 Introduction
The SDM-874p is a miniature digital video interface, converting
SDI/HDSDI video signals to Digital RGB (DVI-HDTV). It provides
automatic input scan rate detection and supports a wide variety
of input formats, including 525i, 625i, 720p, 1080i and 1080p.
The primary application is to convert SD/HD serial digital video to
Digital RGB to feed DVI-HDTV displays and projectors (CRT,
LCD, Plasma, DLP, D-ILA, etc.). In order to support the
emerging popularity of 24p equipment and displays, the SDM-
874p outputs DVI-D with selectable 3:2 sequence insertion. The
SDM-874p is compatible with any 1280x768 or 1920x1200
native resolution display, including the Apple Cinema Display.
Equalizer
Color
Bar Gen
SDI /
HD-SDI
Color
Space
Converter
DVI
Serializer
Markers
4:3
Frame
Buffer
3:2,
Bypass
IN
1920x1200
1280x768
Mapper
SD / HD
Reclocker
DVI
LOOP
Figure 1: SDM-874p functional block diagram
1.2 Features
• SDI / HD SDI video input with active loop-through
• Digital RGB DVI-D output (DVI-HDTV compliant)
• Supports 525i, 625i, 720p, 1080p, 1080i with automatic
input scan rate detection
• Supports many processing modes (see the Input/Output
formats table on pages 10 & 11)
• 1920x1200 Apple HD Cinema display compatible
• Built-in test signal and 4:3 markers
• Compact stand-alone package
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