поискавой системы для электроныых деталей |
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TDA4557 датащи(PDF) 7 Page - NXP Semiconductors |
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TDA4557 датащи(HTML) 7 Page - NXP Semiconductors |
7 / 11 page March 1991 7 Philips Semiconductors Product specification Multistandard decoder TDA4557 Identification part Switching voltages for chrominance filters and crystals at pin 28 (PAL) at pin 27 (SECAM) at pin 26 (NTSC 3.58 MHz) at pin 25 (NTSC 4.43 MHz) Control voltage OFF state V25,26,27,28-9 −− 0.5 V Control voltage ON state during scanning; colour OFF V25,26,27,28-9 2.1 2.45 2.7 V colour ON V25,26,27,28-9 5.5 5.8 6.2 V Output current −I 25,26,27,28-9 −− 3mA Voltage for forced switching ON PAL V28-9 9 − VP V SECAM V27-9 9 − VP V NTSC 3.58 MHz V26-9 9 − VP V NTSC 4.43 MHz V25-9 9 − VP V Delay time for restart of scanning tdS 2 to 3 vertical periods colour ON tdC1 2 to 3 vertical periods colour OFF tdC2 0 to 1 vertical periods SECAM identification (pin 23) Input voltage for horizontal identification (H) V23-9 0 − 2V vertical identification (V) V23-9 10 − VP V combined (H) and (V) identification V23-9 − 6 (note 2) − V Sequence of standard inquiry PAL-SECAM-NTSC 3.58 MHz-NTSC 4.43 MHz Reliable SECAM identification by PAL priority circuit Scanning time for each standard tS 4 vertical periods PARAMETER SYMBOL MIN. TYP. MAX. UNIT |
Аналогичный номер детали - TDA4557 |
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Аналогичное описание - TDA4557 |
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