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ADV7341 数据表(PDF) 78 Page - Analog Devices |
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ADV7341 数据表(HTML) 78 Page - Analog Devices |
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78 / 108 page ![]() ADV7340/ADV7341 Data Sheet Rev. C | Page 78 of 108 Figure 90. Standard Definition CGMS Waveform Figure 91. Enhanced Definition (525p) CGMS Waveform Figure 92. Enhanced Definition (625p) CGMS Waveform Figure 93. High Definition (720p) CGMS Waveform CRC SEQUENCE REF 0 IRE –40 IRE +70 IRE +100 IRE 11.2µs 2.235µs ± 20ns 49.1µs ± 0.5µs C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 CRC SEQUENCE REF 5.8µs ± 0.15µs 6T 0mV –300mV 70% ± 10% T = 1/( fH × 33) = 963ns fH = HORIZONTAL SCAN FREQUENCY T ± 30ns +700mV 21.2µs ± 0.22µs 22T C13 C14 C15 C16 C17 C18 C19 BIT 1 BIT 2 BIT 20 R S C0 LSB C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 MSB PEAK WHITE SYNC LEVEL 500mV ± 25mV 5.5µs ± 0.125µs R = RUN-IN S = START CODE 13.7µs CRC SEQUENCE REF 4T 3.128µs ± 90ns 17.2µs ± 160ns 22T T = 1/( fH × 1650/58) = 781.93ns fH = HORIZONTAL SCAN FREQUENCY 1H T ± 30ns 0mV –300mV 70% ± 10% +700mV C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 BIT 1 BIT 2 BIT 20 |
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