CA3194 Intersil, CA3194 Datasheet - Page 7

• Manufacturer Part Number: CA3194
• Description: Single Chip PAL Luminance/Chroma Processor
• Manufacturer: Intersil

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Typical Performance Curves
FIGURE 13. AVERAGE BEAM LIMITER (V
FIGURE 15. AVERAGE BEAM LIMITER (V
12
11
10
9
8
7
6
5
4
FIGURE 17. KILLER-THRESHOLD LEVEL CONTROL
10
0
9
8
7
6
R =15k
R = 22k
R =33k
R = 47k
0
PEAK WHITE LEVEL
V
V
V
PIN 20: LUMA = 0.5V
REDUCED
LUMA
1
CC
C
IN
PIN 18 OUTPUT
PIN 18 OUTPUT
: SET FOR V
: SET FOR BLACK LEVEL = 7V
= 12V
PIN 24 - AVERAGE BEAM LIMITER (V
5.1M
5.1M
5.1M
PIN 24 - AVERAGE BEAM LIMITER (V
2
BLACK LEVEL
2
V
CC
3
18
= 2V
4
INITIAL BLACK LEVEL SET 7.0V
P-P
4
P-P
(30% SYNC)
5
V
V
V
LEVEL = 6.3V
PIN 20: LUMA = 0.5V
VARY R
TERMINAL RESISTANCE
BLACK LEVEL
PEAK WHITE
CC
C
B
CA3194E
(30% SYNC)
5
= 5V
: SET FOR BLACK
= 12V
6
6
AB
AB
C
- CONTRAST
(Continued)
) MEASURED AT
) MEASURED AT
7
AB
AB
8
8
, V)
, V)
P-P
9
CA3194
10
10
7-62
FIGURE 14. AVERAGE BEAM LIMITER (V
13
12
11
10
9
8
7
6
5
300
1.5K
0.01 F
0
PEDESTAL
FIGURE 18. EXTERNAL OVERLOAD DETECTOR
FIGURE 16. SANDCASTLE INPUT WAVEFORM
R = 47k
V
BLANK
CC
H + V
1
BG PULSE
47K
PIN 18 OUTPUT
PIN 24 - AVERAGE BEAM LIMITER (V
2
(NOTE 2)
NOTES:
+5V
3
1. Nominal values used in NTSC system.
2. Small signal n-p-n.
5K
(NOTE 1)
4
27K
PEAK WHITE
BLACK LEVEL
1.0 F
(NOTE 1)
V
V
V
PIN 20: LUMA = 0.5V
R
RESISTANCE = 47k
CC
C
B
C
5
(30% SYNC)
= 5V
= 3.5V
- CONTRAST TERMINAL
= 12V
2
3
V
6
BG
V
AB
BLANK
CHROMA OUTPUT
= 6.5V TO V
) MEASURED AT
7
SATURATION
0V
CONTROL
CA3194E
= 2V TO 5V
AB
8
P-P
, V)
CC
9
10
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