Understanding The Format Library - Quantum Data 881 User Manual

46 Chapter 2 Testing Video Displays
Upon selecting a format, you can modify the format options and settings if necessary. For
instructions on this, see

Understanding the format library

The 882 has several built-in formats to test a broad range of display types. These formats
are grouped in the following categories:
• Component standard definition television formats
• Component high definition television formats
• Computer display formats
• Military and medical display formats
• Miscellaneous formats
Note: A summary of the format naming conventions is provided in this section. For a
detailed description of the naming conventions, see
Component standard definition television formats
Component SDTV formats are applicable in the case of RGB and YPbPr. These formats
are named by their vertical resolution, scanning method, and frame rate. The initial
characters indicating the resolution are followed by the scanning method. The two
characters following the scanning method indicate the frame rate. A typical example of a
component standard definition TV video format is:
• 480i2x30 (for a vertical resolution of 480 pixels with interlaced scanning and a 30 Hz
frame refresh rate; 2x indicates that the pixels are double-clocked for DVI
compatibility).
Component high definition television formats
Component high definition television formats, like the standard definition television
formats, are named by their vertical resolution, scanning method, and frame rate. These
formats are applicable in the case of RGB, YPbPr, and YCbCr. These initial characters
indicating the resolution are followed by the scanning method. The two characters
following the scanning method indicate the frame rate. A typical example of a component
high definition TV video format is:
• 1080i30 (for a vertical resolution of 1080 active vertical lines with interlaced scanning
and a 30 Hz frame refresh rate).
Computer display formats
Computer display formats are assumed to use progressive scanning. Computer display
format names consist of four blocks. The initial three characters indicate the vendor ID
using the EISA ID (for example, IBM, SUN, and VSC) or the standard body or acronym
(for example, SMT, DMT, GTF, CEA, and EIA). The next two characters provide the first
two digits of the horizontal resolution in pixels. Following the horizontal resolution are two
"Configuring format parameters" on page 153.
"Format library" on page 147.