SPT1018
8-BIT, HIGH SPEED D/A CONVERTER
FEATURES
• 275 MWPS Conversion Rate - Version A
• 165 MWPS Conversion Rate - Version B
• Compatible with TDC1018 and HDAC10180
with Improved Performance
• RS-343-A Compatible
• Complete Video Controls: Sync, Blank, Bright
and Reference White (Force High)
• 10KH, 100K ECL Compatible
• Single Power Supply
• Registered Data and Video Controls
• Differential Current Outputs
• ESD Protected Data and Control Inputs
APPLICATIONS
• High Resolution Color or Monochrome Raster
Graphics Displays
• Medical Electronics: CAT, PET, MR Imaging Displays
• CAD/CAE Workstations
• Solids Modeling
• General Purpose High-Speed D/A Conversion
• Digital Synthesizers
• Automated Test Equipment
• Digital Transmitters/Modulators
GENERAL DESCRIPTION
The SPT1018 is a monolithic 8-bit digital-to-analog converter
capable of accepting video data at a 165 or 275 MWPS rate.
Complete with video controls (Sync, Blank, Reference White
[Force High], Bright), the SPT1018 directly drives doubly-
terminated 50 or 75 ohm loads to standard composite video
levels. The standard set-up level is 7.5 IRE. The SPT1018 is
pin-compatible with the HDAC10180 and the TDC1018, with
improved performance. The SPT1018 contains data and
control input registers, video control logic, reference buffer,
and current switches.
The SPT1018 is available in a 24-lead PDIP package in the
industrial temperature range. Contact the factory for military
temperature and /883 versions.
BLOCK DIAGRAM
Sync, Blank, Bright, Ref - High
Video Controls In
D0 - D3
Video Data In
4
4
4
4
Out +
Register
Video Data In
D4 - D7
(MSBs)
4
Output
Current
Switches
Out -
4 To 15
Decode
Feedthrough
Convert
2
Ref+
Ref-
Ref
Buffer
Comp
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
