This document is about the SAA5191 integrated circuit. It mainly introduces its features and characteristics, including adaptive data slicer, crystal-controlled data clock regeneration, adaptive sync separator, horizontal phase detector, 13.5 MHz VCO to provide display phase locked loop (PLL) and TV synchronization at teletext mode.
The SAA5191 is a bipolar integrated circuit designed to extract teletext data from the video signal (CVBS), regenerate the teletext clock (TTC), and synchronize text display to television signals. It operates in conjunction with the Digital Video Teletext (back-end) Decoder (DVTB - SAA9042A) or any other compatible device.
Key features include an adaptive data slicer, crystal-controlled data clock regeneration with a bit rate of 6.9375 MHz, and an adaptive sync separator with a horizontal phase detector and 13.5 MHz VCO. The device is available in a 28-pin plastic DIP package (SOT117-1).
| Supply Voltage | 12 V |
|---|---|
| Supply Current | 70 mA |
| Operating Temperature | 0 to +70 °C |
| Data Clock Rate | 6.9375 MHz |
| VCO Frequency | 13.5 MHz |
| Package Type | 28-pin DIP |
It is a bipolar integrated circuit that extracts teletext data from the video signal, regenerates the teletext clock, and synchronizes the text display to television signals.
It operates in conjunction with the Digital Video Teletext (back-end) Decoder (DVTB - SAA9042A) or any other compatible device.
The typical supply voltage is 12 V, with a range from 10.8 V to 13.2 V.