전자부품 데이터시트 검색엔진 |
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BA7071F 데이터시트(PDF) 5 Page - Rohm |
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BA7071F 데이터시트(HTML) 5 Page - Rohm |
5 / 7 page 5 Multimedia ICs BA7071F •Circuit operation (1) Synchronization separation circuit Detects the charging current to a externally-connected capacitor, and performs synchronization separation. (2) Horizontal oscillation circuit When a video signal is input, it is synchronized with Hsync by the PLL. The horizontal free-running frequen- cy is determined by external resistor R1. (3) Vertical synchronization separation circuit When a video signal is input, synchronization signal separation is done over the vertical synchronization pulse interval. fH • O = [kHz] 1.57E6 R1 (4) VIN, HD, and VD timing charts 1 / 2H VD (OUT) VIN, VD phase difference Vertical synchronization pulse interval NTSC signal Odd field (IN) NTSC signal Even field (IN) HD Odd field (OUT) HD Even field (OUT) 1. The rise and fall positions for VD are basically the same for both odd and even fields. 2. HD shifts by 1 / 2H during the odd and even field interval. 3. Only the odd field is given for the specification. HD, VD phase difference 1 Fig. 2 HD, VD phase difference 2 •Attached components Resistor R1 should have a tolerance of ± 2%, and a temperature coefficient of 100ppm or lower. |
유사한 부품 번호 - BA7071F |
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유사한 설명 - BA7071F |
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