CA3194E データシートの表示（PDF） - Intersil
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CA3194E Datasheet PDF : 9 Pages
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CA3194
Typical Performance Curves (Continued)
10
VCC = 12V
VC : SET FOR V18 = 2VP-P
VIN : SET FOR BLACK LEVEL = 7V
9 PIN 20: LUMA = 0.5VP-P (30% SYNC)
PEAK WHITE LEVEL
8
7
REDUCED
LUMA
INITIAL BLACK LEVEL SET 7.0V
BLACK LEVEL
6
0
2
4
6
8
10
PIN 24 - AVERAGE BEAM LIMITER (VAB, V)
FIGURE 13. AVERAGE BEAM LIMITER (VAB) MEASURED AT
PIN 18 OUTPUT
13
12
PEAK WHITE
11
10
9
BLACK LEVEL
8
R = 47kΩ
7
6
5
VCC = 12V
VC = 5V
VB = 3.5V
PIN 20: LUMA = 0.5VP-P
(30% SYNC)
RC - CONTRAST TERMINAL
RESISTANCE = 47kΩ
0 1 234 5
6 7 8 9 10
PIN 24 - AVERAGE BEAM LIMITER (VAB, V)
FIGURE 14. AVERAGE BEAM LIMITER (VAB) MEASURED AT
PIN 18 OUTPUT
12
11
10
R =15kΩ
9
R = 22kΩ
8
R =33kΩ
7
6 R = 47kΩ
PEAK WHITE
VCC = 12V
VC = 5V
VB : SET FOR BLACK
LEVEL = 6.3V
PIN 20: LUMA = 0.5VP-P
(30% SYNC)
VARY RC - CONTRAST
TERMINAL RESISTANCE
BLACK LEVEL
5
4
0 1 234 5
6 7 8 9 10
PIN 24 - AVERAGE BEAM LIMITER (VAB, V)
FIGURE 15. AVERAGE BEAM LIMITER (VAB) MEASURED AT
PIN 18 OUTPUT
BG PULSE
H+V
BLANK
PEDESTAL
VBG = 6.5V TO VCC
VBLANK = 2V TO 5V
0V
FIGURE 16. SANDCASTLE INPUT WAVEFORM
VCC
5.1M
5.1M
5.1M
CA3194E
5
FIGURE 17. KILLER-THRESHOLD LEVEL CONTROL
0.01 µF
+5V
2
CA3194E
CHROMA OUTPUT
5K
3
SATURATION
VCC
27K
CONTROL
(NOTE 1)
47K
300
(NOTE 2)
1.5K
1.0µF
(NOTE 1)
NOTES:
1. Nominal values used in NTSC system.
2. Small signal n-p-n.
FIGURE 18. EXTERNAL OVERLOAD DETECTOR
7-62
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