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CA3194 Scheda tecnica(PDF) 7 Page - Intersil Corporation |
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CA3194 Scheda tecnica(HTML) 7 Page - Intersil Corporation |
7 / 9 page 7-62 CA3194 FIGURE 13. AVERAGE BEAM LIMITER (VAB) MEASURED AT PIN 18 OUTPUT FIGURE 14. AVERAGE BEAM LIMITER (VAB) MEASURED AT PIN 18 OUTPUT FIGURE 15. AVERAGE BEAM LIMITER (VAB) MEASURED AT PIN 18 OUTPUT FIGURE 16. SANDCASTLE INPUT WAVEFORM FIGURE 17. KILLER-THRESHOLD LEVEL CONTROL FIGURE 18. EXTERNAL OVERLOAD DETECTOR Typical Performance Curves (Continued) VCC = 12V VC : SET FOR V18 = 2VP-P VIN : SET FOR BLACK LEVEL = 7V 10 6 PIN 24 - AVERAGE BEAM LIMITER (VAB, V) PIN 20: LUMA = 0.5VP-P (30% SYNC) 9 8 7 02 46 8 10 INITIAL BLACK LEVEL SET 7.0V PEAK WHITE LEVEL BLACK LEVEL REDUCED LUMA VCC = 12V VC = 5V VB = 3.5V PIN 20: LUMA = 0.5VP-P RC - CONTRAST TERMINAL RESISTANCE = 47k Ω 0 PIN 24 - AVERAGE BEAM LIMITER (VAB, V) 7 (30% SYNC) BLACK LEVEL PEAK WHITE R = 47k Ω 6 5 8 9 10 11 12 13 12 3 4 5 6 789 10 VCC = 12V VC = 5V VB : SET FOR BLACK PIN 20: LUMA = 0.5VP-P VARY RC - CONTRAST 0 PIN 24 - AVERAGE BEAM LIMITER (VAB, V) 6 (30% SYNC) BLACK LEVEL PEAK WHITE R = 47k Ω 5 4 7 8 9 10 11 12 12 3 4 5 6 789 10 TERMINAL RESISTANCE LEVEL = 6.3V R =33k Ω R = 22k Ω R =15k Ω BLANK PEDESTAL 0V VBG = 6.5V TO VCC VBLANK = 2V TO 5V BG PULSE H + V 5 VCC 5.1M 5.1M 5.1M CA3194E 3 CA3194E CHROMA OUTPUT SATURATION CONTROL 2 0.01 µF +5V 5K 27K VCC 47K 300 1.5K (NOTE 2) 1.0 µF (NOTE 1) (NOTE 1) NOTES: 1. Nominal values used in NTSC system. 2. Small signal n-p-n. |
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