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PDF MSK621 Data sheet ( Hoja de datos )
| Número de pieza | MSK621 | |
| Descripción | Wide Bandwidth Video Amplifier System | |
| Fabricantes | MSK | |
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Hay una vista previa y un enlace de descarga de MSK621 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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ISO 9001 CERTIFIED BY DSCC
www.DataSheet4U.com
M.S.KENNEDY CORP.
WIDE BANDWIDTH VIDEO
AMPLIFIER SYSTEM
4707 Dey Road Liverpool, N.Y. 13088
621
(315) 701-6751
FEATURES:
MIL-PRF-38534 CERTIFIED
230 MHz Video Bandwidth With Vout=4Vpp
Transition Times Less Than 2.0nS With Vout=4Vpp
0 To 4 Volt High Input Impedance DC Drive Control With ±3dB Range
0 To 4 Volt High Input Impedance DC Contrast Control With 40dB Range
Externally Gated Comparator for Brightness Control
Simple To Parallel For RGB Color Tracking
0.0V to 8.0V Output Voltage Swing Capability
On Board Accurate Reference Voltage Generator
Available Fully Screened to MIL-PRF-38534
DESCRIPTION:
The MSK 621 is a very high frequency video amplifier system capable of driving displays with resolutions up to
1664 x 1200. Brightness is controlled with a gated differential input black level clamp comparator. There are also DC
inputs available for contrast control and drive control. All DC control inputs operate over a 0V to 4V input range and
feature high impedance inputs. In addition to all of the features offered in the MSK 620, the MSK 621 contains an
emitter follower buffer output stage which allows the device to easily drive video lines at greater current levels. The
MSK 621 is packaged in a space efficient hermetically sealed 18 pin dip package.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
Wideband Amplifier With Gain
and DC Offset Control
High Resolution CRT Monitor
Ultra High Performance Video Processing
PIN-OUT INFORMATION
1 Control Output (+)
2 Attn. Input (+)
3 Attn. Input (-)
4 Control Output (-)
5 Ground
6 Video Input
7 Contrast Control Input
8 Drive Control Input
9 Vref Output
1
10 Clamp Cap
11 Clamp Gate Input
12 Ground
13 +Vcc
14 Video Output
15 -Vee
16 Clamp Input (-)
17 Clamp Input (+)
18 Ground
Rev. B 9/02
1 page  
COMPLETE RGB VIDEO SYSTEM
www.DataSheet4U.com
A typical connection diagram for a red, green, blue video amplifier system is shown in Figure 2. To achieve optimum contrast
tracking, a master slave contrast connection is utilized. This is accomplished by connecting pins 2 and 3 of all three preamplifiers
together and using the contrast control of one channel to vary the contrast of all three channels simultaneously. White balance is
achieved through individual drive controls. Black level can also be adjusted for each channel by adjusting the voltage at pin 17. If
the cathode is AC coupled, the video signal is DC restored at the cathode. In that case black level clamping can be accomplished
by biasing pin 17 to the desired black level. Black level control is accomplished with R8 and R9 sampling the output and feeding
it back to the clamping section of the MSK 621. This scheme provides black level control superior to locally sampling the MSK 621
output and feeding that back to the clamping section.
5 Rev. B 9/02
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MSK621.PDF ] | |
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