AN2458 Просмотр технического описания (PDF) - Panasonic Corporation
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AN2458 Datasheet PDF : 3 Pages
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AN2458SH
Color Encoder IC (NTSC/PAL) for CCD Video Camera
s Overview
The AN2458SH is a color encoder IC for NTSC/
PAL-compatible CCD video camera. It outputs chro-
1
24
ma signal after modulation of inputted R–Y and B–Y
color difference signals with subcarrier signals.
Unit:mm
s Features
• Compatible with NTSC and PAL
• Carrier leak adjustment available
• Built-in blanking circuit
• Color phase adjustment available
• Improved temperature characteristics of color phase
shift (within ±5˚C)
12
13
(0.5)
5.5±0.3
7.5±0.3
24-Pin SSOP Package (SSOP024-P-0300)
s Block Diagrams
VREF R–Y IN
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23
22
NC
VREF
Clamp
MOD
R–Y
HUE
DC.
OFF R–Y SC Cont. BF IN Cont. C BLK. IN
VCC
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20
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18
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16
15
14
NC
BLK
VCC
DC Cont.
CP2
+
Lim. BLK
CP2. IN
13
CP2
BLK
Clamp
MOD
MOD
GC
+
GC
CP2
+
HUE
NC
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2
3
4
5
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7
8
9
10
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12
B–Y IN GND
B–Y B–Y 90. HUE.C HUE. BURST NC CHROMA HUE.R
OFF SC ADJ
CR LEVEL
OUT
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