SAA4993H Datasheet | Philips Semiconductors

FEATURES - plete teletext decoder including page memory in a single 40-pin DIL package - Single +5 V power supply - Digital data slicer and display clock phase-locked loop reduces peripheral ponents to a minimum - Both video and scan related synchronization modes are supported - On board single page memory including extension packets for FASTEXT - Single page acquisition system - RGB interface to standard colour decoder ICs, push-pull output drive - Data capture performance similar to SAA5231 (VIP2) - Simple software control via I2C-bus - Option for five national languages - 32 supplementary characters for on-screen displays - Optional storage of packet 24 in the display memory - Page links in packets 27 and 8/30 are Hamming decoded - Separate text and video signal quality detectors, 625/525 video status and language version all readable via I2C-bus - Automatic ODD/EVEN output control with manual override - Control of display PLL free-run and rolling header via I2C-bus - VCS to SCS mode for stable 525 line status display ORDERING INFORMATION EXTENDED TYPE NUMBER SAA5244AP SAA5244AGP Notes 1. SOT129-1; 1996 December 16. 2. SOT205-1; 1996 December 16. PACKAGE PINS 40 44 PIN POSITION DIL QFP MATERIAL plastic plastic DESCRIPTION SAA5244A The Integrated VIP and Teletext (IVT1.1) is a teletext decoder (contained within a single-chip package) for decoding 625-line based World System Teletext transmissions. The teletext decoder hardware is based on a reduced function version of the device SAA5246 (IVT1.0). The Video Input Processor (VIP) section of the device uses mixed analog and digital designs for the data slicer and the display clock phase-locked loop functions. As a result the number of external ponents is greatly reduced and no critical or adjustable ponents are required. A single page static RAM is incorporated in the device thereby giving a genuine single-chip teletext decoder device. CODE SOT129(1) SOT205A(2) March 1992 Philips Semiconductors Product...