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PDF LM1886 Data sheet ( Hoja de datos )
| Número de pieza | LM1886 | |
| Descripción | TV Video Matrix D to A | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LM1886 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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April 1987
LM1886 TV Video Matrix D to A
General Description
The LM1886 is a TV video matrix D to A converter which
encodes luminance and color difference signals from 3-bit
red green and blue inputs The luminance output is encod-
ed from the NTSC equation Y e 0 3R a 0 59G a 0 11B
and the R-Y and B-Y outputs are weighted to prevent over-
modulation A built-in R-Y and burst gate polarity switch al-
low European PAL compatible signals to be encoded All
output levels including an RF O Carrier Bias Voltage have
been referenced to 5V for direct connection to the LM1889
TV video modulator When used in combination with the
LM1889 and a suitable sync generator 3-bit R G and B
information may be encoded to both composite video and
RF channel carrier
Features
Y Complete digital to RF coding with LM1889
Y 1-pin PAL NTSC mode select
Y True NTSC matrix
Y 8 levels of grey scale
Y Allows wide range of colorimetry
Y Low power TTL inputs
Y Wideband luminance output
Y Weighted R-Y B-Y outputs
Connection Diagram
Top View
FIGURE 1
Order Number LM1886N
See NS Package Number N20A
TL H 7916 – 1
C1995 National Semiconductor Corporation TL H 7916
RRD-B30M115 Printed in U S A
1 page  
Typical Application
NTSC PAL
XTAL 3 5795 4 4336 MHz
C 43 36
pF
FIGURE 3
TL H 7916 – 5
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LM1886.PDF ] | |
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