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SAA5191 Datasheet(PDF) 2 Page - NXP Semiconductors |
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SAA5191 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 9 page March 1991 2 Philips Semiconductors Preliminary specification Teletext video processor SAA5191 FEATURES • Adaptive data slicer • Crystal-controlled data clock regeneration with a bit rate of 6.9375 MHz • Adaptive sync separator, horizontal phase detector and 13.5 MHz VCO to provide display phase locked loop (PLL) • TV synchronization at teletext mode GENERAL DESCRIPTION The SAA5191 is a bipolar integrated circuit that extracts teletext data from the video signal (CVBS), regenerates the teletext clock (TTC) and synchronizes the text display to the television signals (VCS). This device operates in conjunction with the Digital Video Teletext (back-end) Decoder (DVTB - SAA9042A) or any other compatible device. QUICK REFERENCE DATA ORDERING AND PACKAGE INFORMATION Note 1. SOT117-1;1996 November 14 SYMBOL PARAMETER MIN. TYP. MAX. UNIT VP supply voltage (pin 16) − 12 − V IP supply current − 70 − mA Vi CVBS CVBS input signal on pin 27 (peak-to-peak value) at pin 2 LOW − 1 − V at pin 2 open-circuit − 2.5 − V Vo outputs signals TTC and TTD (peak-to-peak value, pins 14, 15) 2.5 3.5 4.5 V VF13 13.5 MHz clock output signal (peak-to-peak value pin 17) 12 3 V VSYNC video sync output signal (peak-to-peak value, pin 1) −− 1V SYNC output signal TCS 200 450 650 mV VCS video composite sync level on output pin 25 LOW −− 0.4 V HIGH 2.4 − 5.5 V Tamb operating ambient temperature 0 −+70 °C EXTENDED TYPE NUMBER PACKAGE PINS PIN POSITION MATERIAL CODE SAA5191 28 DIL plastic SOT117(1) |
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