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ZXFV4583 Datasheet(PDF) 1 Page - Zetex Semiconductors |
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ZXFV4583 Datasheet(HTML) 1 Page - Zetex Semiconductors |
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1 / 14 page  SEMICO NDUC TORS DEVICE DESCRIPTION The ZXFV4583 provides the ability to separate out video synchronization signals for a wide variety of TV and CRT display systems, standard and non-standard. Flexibility arises from the use of just three external resistors to adapt to each application. One resistor controls a fully integrated internal color carrier filter with variable bandwidth. This filter avoids disturbance from the color carrier, permitting accurate threshold slicing for timing extraction. A second resistor controls the voltage threshold for loss of signal detection after a time-out interval. The third resistor controls the timing functions. DC restoration for displays is facilitated by the Back Porch synch output, which can be used to drive an external circuit to clamp the blanking voltage to a fixed level. FEATURES AND BENEFITS • PAL, NTSC, SECAM • Variable filter for optimal accuracy • Sync outputs: composite, horizontal, vertical, back porch, odd/even • No-signal detector • On chip sample / hold capacitors • +5V single supply • Default vertical output where there are no serration pulses • Pin and layout compatible with part EL4583 in SO16N surface mount package APPLICATIONS • Digital image capture • Video input systems requiring separation of picture timing • Video distribution • CCTV surveillance • Digital multimedia • Timing for black level clamp ZXFV4583 ISSUE 3 - NOVEMBER 2003 1 SYNC SEPARATOR WITH VARIABLE FILTER ORDERING INFORMATION Part Number Container Increment ZXFV4583N16TA Reel 7 ″ 500 ZXFV4583N16TC Reel 13 ″ 2500 CONNECTION DIAGRAM |
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