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NTE844 Arkusz danych(PDF) 1 Page - NTE Electronics

Numer części NTE844
Szczegółowy opis  Integrated Circuit Single Chip TV Chroma/Luminance Processor
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Producent  NTE [NTE Electronics]
Strona internetowa  http://www.nteinc.com
Logo NTE - NTE Electronics

NTE844 Arkusz danych(HTML) 1 Page - NTE Electronics

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NTE844
Integrated Circuit
Single Chip TV Chroma/Luminance Processor
Description:
The NTE844 is an integrated circuit in a 28–Lead DIP type package and contains all the required cir-
cuits functions between the video detector and the picture tube RGB driver stages of a color television
receiver. The NTE844 decodes the chrominance signals and then produces three different color sig-
nals that are internally combined with the luminance to develop the RGB signals. The picture satura-
tion, hue and brightness DC controls are externally adjustable. The AFPC, ACC, Dynamic flesh con-
trol, Beam limiting and Gate black level (Brightness)control are servo loops used to stabilize the RGB
output and reduce frequent manual adjustment. The automatic beam limiter circuit reduces picture
contrast and brightness to prevent excessive drive output at the picture tube.
Features:
D All chroma processing and demodulating circuitry on a single chip.
D Phase–locked subcarrier regeneration utilizing sample–and–hold techniques.
D Supplementary ACC with overload detector
D Linear DC controls for chroma gain and tint
D Dynamic “flesh correction”
D Balanced chroma demodulators with low output impedance for direct coupling
D Internal RF filtering
D Few external components
D Automatic beam limiter
D Chroma luminance tracking picture control
Absolute Maximum Ratings:
DC Supply Voltage Between Pin23 and Pin8
14.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Device Dissipation (Up to TA = +55°C), PD
1.27W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above TA = +55°C
13.3mW/
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Ambient Temperature Range, Topr
–40
° to +85°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, Tstg
–65
° to +150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 1/16” from case, 10sec max), TL
+265
°C
. . . . . . . . . . . . . . . . .


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