CA3194E 查看數據表（PDF） - Intersil
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CA3194E Datasheet PDF : 9 Pages
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CA3194
Typical Performance Curves (Continued)
0
COLOR UNKILL
-1
VC = VS = 2.85V VCC = 12V
CHROMA INPUT: BURST = 100mVP-P
-2
CHROMA = 220mVP-P (0dB)
CHROMA OUTPUT: 880mVP-P (0dB)
-3
-4
COLOR KILL
-5
-20
-10
0
+6
CHROMA INPUT (V4, dB)
FIGURE 7. ACC CHARACTERISTICS MEASURED AT PIN 2
OUTPUT TERMINAL
6 CHROMA INPUT: BURST = 100mVP-P
CHROMA = 220mVP-P
5
LUMA INPUT: 0.5VP-P (30% SYNCH)
ADJUST VC FOR V18 = 2VPEAK LUMA,
THEN ADJUST VS FOR V18 = 2VPEAK
4 CHROMA (RED BAR)
3
2
1
0
0
1
2
3
4
5
PIN 22 - CONTRAST CONTROL (VC, V)
FIGURE 8. LUMA/CHROMA TRACKING vs CONTRAST CON-
TROL MEASURED AT PIN 18 OUTPUT TERMINAL
6 CHROMA INPUT: BURST = 100mVP-P
CHROMA = 220mVP-P
5
LUMA INPUT: 0.5VP-P (30% SYNCH)
ADJUST VC FOR V18 = 2VPEAK LUMA,
THEN ADJUST VS FOR V18 = 2VPEAK
4 CHROMA (RED BAR)
3
4
VC = 2.85V
VCC = 12V
PIN 4 : BURST = 100mVP-P
3
CHROMA = 220mVP-P
2
2
1
1
0
0
1
2
3
4
5
PIN 22 - CONTRAST CONTROL (VC, V)
FIGURE 9. LUMA/CHROMA TRACKING WITH CONTRAST CON-
TROL MEASURED AT PIN 18 OUTPUT TERMINAL
0
0
1
2
3
4
5
PIN 3 - CHROMA SATURATION CONTROL (VC, VP-P)
FIGURE 10. SATURATION CONTROL (VS) MEASURED AT
CHROMA AMPLIFIER OUTPUT TERMINAL PIN 2
100
0
-100
100
0
-100
VC = VS = 2.85V
VCC = 12V
NO INPUT SIGNAL
CENTER DIFF. CORRECTED
TO ZERO AT 7.0V - PIN 18
5
6
7
8
9
R - OUT (PIN 18) BLACK LEVEL REFERENCE - (VB ADJ, V)
FIGURE 11. DIFFERENTIAL BLACK-LEVEL TRACKING
MEASURED AT RGB OUTPUT TERMINALS
8
BOTTOM CLIPPING
6
OF RED BAR
4
VS = 2.85V
VCC = 12V
2
PIN 4 : BURST = 100mVP-P
CHROMA = 220mVP-P
ADJUST VC (DL700 DELAY
LINE IN CIRCUIT)
0
0
1
2
3
PIN 2 - CHROMA OUTPUT (VP-P) RED BAR
FIGURE 12. PIN 18 OUTPUT vs PIN 2 VOLTAGE MEASURED AT
CHROMA OUTPUT TERMINALS AND R OUTPUT
7-61
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