www.cadeka.com
TMC3003
Triple Video D/A Converter
10 bit, 80 Msps
Features
•
•
•
•
•
•
10-bit resolution
80, 50, and 30 megapixels per second
Sync and blank controls
Sync on green D/A output
1.0V p-p video into 37.5
Ω
or 75
Ω
load
Enhancement of ADV7122
– Internal bandgap voltage reference
– Double-buffered data for low distortion
• TTL-compatible inputs
• Low glitch energy
• Single +5 Volt power supply
Applications
• Video signal conversion
– RGB
– YC
B
C
R
– Composite, Y, C
• Multimedia systems
• Image processing
• True-color graphics systems (1 billion colors)
• Broadcast television equipment
• High-Definition Television (HDTV) equipment
• Direct digital synthesis
Description
The TMC3003 is a high-speed triple 10-bit D/A converter
especially suited for video and graphics applications.
It offers 10-bit resolution, TTL-compatible inputs, low
power consumption, and requires only a single +5 Volt
power supply. It has single-ended current outputs, SYNC
and BLANK control inputs, and a separate current source for
adding sync pulses to the Green D/A converter output. It is
ideal for generating analog RGB from digital RGB and
driving computer display and video monitors. Three speed
grades are available: 30, 50, and 80 Msps.
The TMC3003 triple D/A converter is available in a 44-lead
plastic J-leaded PLCC and 48-Lead quad flatpack (LQFP).
It is fabricated on a sub-micron CMOS process with perfor-
mance guaranteed from 0°C to 70°C.
Block Diagram
SYNC
BLANK
10
10 bit
D/A Converter
G
9-0
IO
G
B
9-0
10
10 bit
D/A Converter
IO
B
R
9-0
CLK
10
10 bit
D/A Converter
IO
R
COMP
R
REF
V
REF
65-3003-01
+1.235V
Ref
REV. 1.0.3 3/5/01
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
