ADV7123 Analog Devices, ADV7123 Datasheet - Page 16

• Manufacturer Part Number: ADV7123
• Description: 330 MHz Triple 10-Bit High Speed Video DAC
• Manufacturer: Analog Devices

Specifications of ADV7123

• Resolution (bits): 10bit
• Dac Update Rate: 330MSPS
• Dac Settling Time: 15ns
• Max Pos Supply (v): +5.25V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

ADV7123
TERMINOLOGY
Blanking Level
The level separating the SYNC portion from the video portion
of the waveform. Usually referred to as the front porch or back
porch. At 0 IRE units, it is the level that shuts off the picture
tube, resulting in the blackest possible picture.
Color Video (RGB)
This refers to the technique of combining the three primary
colors of red, green, and blue to produce color pictures within
the usual spectrum. In RGB monitors, three DACs are required,
one for each color.
Sync Signal ( SYNC )
The position of the composite video signal that synchronizes
the scanning process.
Gray Scale
The discrete levels of video signal between reference black and
reference white levels. A 10-bit DAC contains 1024 different
levels, while an 8-bit DAC contains 256.
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Raster Scan
The most basic method of sweeping a CRT one line at a time to
generate and display images.
Reference Black Level
The maximum negative polarity amplitude of the video signal.
Reference White Level
The maximum positive polarity amplitude of the video signal.
Sync Level
The peak level of the SYNC signal.
Video Signal
The portion of the composite video signal that varies in gray
scale levels between reference white and reference black. Also
referred to as the picture signal, this is the portion that can be
visually observed.