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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STV2118B датащи(PDF) 12 Page - STMicroelectronics |
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STV2118B датащи(HTML) 12 Page - STMicroelectronics |
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12 / 25 page  ELECTRICAL CHARACTERISTICS (VCC =9V, Tamb =25 oC, unless otherwise specified) (continued) Symbol Parameter Test Conditions Min. Typ. Max. Unit RGB OUTPUTS (Pins 27-28-29) (continued) Track Tracking between Luminance and Chrominance Signals From Max. contrast (0dB) to -10dB contrast 2dB Bwidth Bandwith of Output Signals at -3dB - CVBS Input (no SVHS) PAL/NTSC - CVBS Input (no SVHS) PAL/NTSC - CVBS Input(no SVHS) SECAM - Y Input SVHS Mode - RGB Inputs fOSC = 3.58MHz, Sharp Typ. fOSC = 4.43MHz, Sharp Typ. fOSC = 4.43MHz, no sharp No trap Filter, Sharp Typ. 8 3.0 3.6 3.0 8 MHz MHz MHz MHz MHz S/N Signal to Noise Ratio of Output (VPP/VRMS) 4.43MHz PAL/NTSC Signal on Y/CVBS Input No signal on R-Y, B-Y inputs Contrast Max., Drive Max., Saturation Typ., Sharp Typ., Bandwidth 5MHz 50 dB Res Residual Frequency at fOSC at 2 fOSC and Higher Harmonics PAL/SECAM PAL/SECAM 25 10 100 50 mVPP mVPP FILTERS VTUN1 Tuning Voltage Range (Pin 8) 3.2 to 4.8 V VTUN2 Cloche Tuning Voltage Range (Pin 9) 2.5 to 6.5 V Y DELAY LINE td1p Delay Time PAL 4.43MHz SVHS mode 330 370 400 ns td1n Delay Time NTSC 3.58MHz SVHS mode 380 410 460 ns td2 Delay Time SECAM SVHS mode 500 540 580 ns td3p Delay Time PAL 4.43MHz CVBS mode 390 425 460 ns td3 Delay Time NTSC 3.58MHz CVBS mode 440 485 530 ns td4 Delay Time SECAM CVBS mode 550 590 630 ns SHARPNESS CIRCUIT (PAL/NTSC only) fSharp Center Frequency SVHS mode 2.5 MHz GSharp Gain Variation from Min. to Max. Sharp at fSharp 6dB Overshoot Amplitude Variation compared to B/W 2T pulse, Sharp Max. 150 % Pre-shoot Amplitude Variation compared to B/W 2T pulse, Sharp Max. -15 % After-shoot Amplitude Variation compared to B/W 2T pulse, Sharp Max. -40 % Coring Coring Range compared to B/W 10 % Y TRAP FILTER fTrap Trap Frequency PAL/NTSC -0.2 fOSC +0.2 MHz Trap Frequency SECAM -0.2 4.25 +0.2 MHz QTrap Trap Quality Factor (Q=1/(fo/f-3dB - f-3dB/fo)) Sharpness Min. Sharpness Max. 1.7 3 - - CRejPN Color Subcarrier Rejection PAL mode, Sharpness Min. NTSC mode, Sharpness Min. 20 18 dB dB CrejS Color Rejection SECAM Mode at 4.1MHz at 4.4MHz 18 18 dB dB CHROMINANCE BANDPASS fC Center Frequency -0.25 fosc +0.25 MHz QBP Bandpass Quality Factor 2.8 3.5 4.2 - CLOCHE FILTER fCloche Resonant Frequency 4.286 MHz QCloche Cloche Quality factor 14 16 18 - ACC CAPACITOR (Pin 5) IC5 Charging Current During burst gate window 250 µA IL5 Leakage Current 0.2 1 µA STV2118B 12/25 |
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