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參數資料
| 型號： | SPT5140SIN |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 8-BIT, ULTRAHIGH-SPEED D/A CONVERTER |
| 中文描述： | 8位，超高速D / A轉換 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 91K |
| 代理商： | SPT5140SIN |
Signal Processing Technologies, Inc.
4755 Forge Road, Colorado Springs, Colorado 80907, USA
Phone: (719) 528-2300 FAX: (719) 528-2370 Website: http://www.spt.com E-Mail: sales@spt.com
SPT
SIGNAL PROCESSING TECHNOLOGIES
SPT5140
8-BIT, ULTRAHIGH-SPEED D/A CONVERTER
BLOCK DIAGRAM
APPLICATIONS
Raster graphics
High-resolution color or monochrome displays
to 2k x 2k pixels
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
FEATURES
400 MWPS nominal conversion rate
RS-343-A compatible
Complete video controls: Sync, Blank, Bright
and Reference White (Force High)
10 KH, 100K ECL compatible
Single power supply
Registered data and video controls
Differential current outputs
Stable on-chip bandgap reference
50 and 75 ohm output drive
ESD-protected data and control inputs
GENERAL DESCRIPTION
The SPT5140 is a monolithic 8-bit digital-to-analog con-
verter capable of accepting video data at 400 MWPS.
Complete with video controls — Sync, Blank, Reference
White (Force High), Bright — the SPT5140 directly drives
doubly-terminated 50 or 75 ohm loads to standard com-
posite video levels. Standard set-up level is 7.5 IRE. The
SPT5140 includes an internal precision bandgap refer-
ence which can drive two other SPT5140s in an RGB
graphics system.
The SPT5140 is available in a 24-lead PDIP package in
the industrial temperature range of –25
°
C to +85
°
C.
Contact the factory for military temperature and /883
versions.
Sync, Blank, Bright, Ref – White
D0–D3
D4–D7
(MSBs)
4 to 15
Decode
Output
Current
Switches
Out +
Out –
Bandgap
Reference
Video Controls In
Video Data In
Feedthrough
Convert
Ref In
Ref Out
ISet
Video Data In
4
4
4
4
2
4
Ref
Buffer
Register
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