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TDA4471 датащи(PDF) 1 Page - TEMIC Semiconductors |
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TDA4471 датащи(HTML) 1 Page - TEMIC Semiconductors |
1 / 16 page TELEFUNKEN Semiconductors TDA4471 Preliminary Information Rev. A1: 18.08.1995 1 (16) Multistandard Video-IF and Quasi Parallel Sound Processing Description The TDA4471 is an integrated bipolar circuit for full multistandard video/sound IF (VIF/SIF) signal processing in TV/VCR and Multimedia applications. The circuit processes all TV video IF signals with negative modulation (e.g. B/G standard), positive modulation (e.g. L standard) and the AM, FM/NICAM sound IF signals. Specially two video IF inputs (2 x VIF) in combination with one sound IF input (1 x SIF) and the common pinning with the TDA4474 gives flexibility to design a universal IF module for various applications. Features D 5V supply voltage; low power consumption D Active carrier generation by FPLL principle (frequency–phase–locked–loop) for true synchronous demodulation D Very linear video demodulation, good pulse response and excellent intermodulation figures D VCO circuit is operating on picture carrier frequency, the VCO frequency is switchable for the L’ mode D Alignment–free AFC without external reference circuit, polarity of the AFC curve is switchable D VIF–AGC for negative modulated signals (peak sync detection) and for positive modulation (peak white/black level detector) D Tuner AGC with adjustable take over point D Alignment–free quasi parallel sound (QPS) mixer for FM/NICAM sound IF signals D Intercarrier output signal is gain controlled (necessary for digital sound processing) D Complete alignment–free AM demodulator with gain controlled AF output D Separate SIF–AGC with average detection D Parallel operation of the AM demodulator and QPS mixer (for NICAM–L stereo sound) D Two video IF inputs (2 x VIFin) D One sound IF input (1 x SIFin) D Package and relevant pinning is compatible with the TDA4474; simplifies the design of an universal IF module Package: 30 pin shrink–dual–inline–plastic (SDIP30) |
Аналогичный номер детали - TDA4471 |
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Аналогичное описание - TDA4471 |
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