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TPU3035 Datasheet(PDF) 4 Page - Micronas |
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TPU3035 Datasheet(HTML) 4 Page - Micronas |
4 / 73 page PRELIMINARY DATA SHEET TPU 3035, TPU 3040 MICRONAS INTERMETALL 4 Multistandard Teletext Processor for Level 1 and 2 Note: This data sheet describes functions and characteristics of TPU3040 TC25. If not otherwise designated, the pin numbers mentioned refer to the 44-pin PLCC package. For corresponding PDIP numbers see page 11. Revision bars indicate significant changes to the previous version. 1. Introduction The TPU 3040 is a single chip World System Teletext (WST) decoder for applications in analog and digital TV sets. Based on a 65C02 core with RAM and ROM on chip, an adaptive data slicer, a display controller and a number of interfaces, the TPU 3040 offers acquisition and display of various teletext and data services such as WST, PDC, VPS and WSS. 1.1. Features The TPU 3040 is an integrated circuit designed in CMOS technology. As a stand-alone system or in combi- nation with the DIGIT 3000 system, the TPU 3040 offers a wide range of new and interesting features, some of them unique in comparison with other products on the market. The TPU 3035 is a stripped-down version of TPU 3040, designed for low-cost applications. The basic chip archi- tecture remains unchanged, whereas some of the more sophisticated features are removed (see Tab 1–1). In the following description only the TPU 3040 is mentioned. Table 1–1: Feature List TPU 3035 3040 Acquisition No. of analog comp. video inputs 1 2 Clamping x x AGC x x Sync. separation with PLL x x Adaptive data slicer x x Signal quality detection x x PAL VBI acquisition x x NTSC VBI acquisition – – MAC VBI acquisition (PLCC44 only) – x MAC packet text acquisition (PLCC44 only) – – Full-field acquisition – – Asynchronous acquisition & display x x Ghost row acquisition x x EPG support – x Internal row 26 processing (Extended Character Sets) – x FLOF/TOP s/w support on chip x x PDC acquisition x x VPS acquisition x x WSS acquisition – x US captioning – x Software acquisition (advanced header, magazine shuffle, ...) x x Full parallel acquisition x x |
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