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TDA8366H датащи(PDF) 36 Page - NXP Semiconductors |
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TDA8366H датащи(HTML) 36 Page - NXP Semiconductors |
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36 / 48 page ![]() January 1995 36 Philips Semiconductors Objective specification I2C-bus controlled PAL/NTSC TV processor TDA8366 TEST AND APPLICATION INFORMATION handbook, full pagewidth MLA746 - 1 BAND PASS 47 and 46 33 31 32 4.4 MHz 3.6 MHz 36 TDA4661 43 19 18 17 28 27 30 29 21 22 23 24 RI GI BI RGBIN CHROMA EXT CVBS/ TXT CVBS IFDEM2 IFDEM1 1 2 HOUT FBI RO GO BO 20 BCLIN 16 BLKIN 44 45 EWD VDR VDR SEC RYO BYO BYI SCO RYI TDA8395 37 to text decoder 39 38 6 5 8 9 15 4 11 STEREO AND CONTROL BAND PASS SCL SDA CVBS/Y SOUND TRAP QSS IF SAW FILTER from tuner L R TDA8366 2 ref (neg) (pos) Fig.13 Application diagram. East-West output stage In order to obtain correct tracking of the vertical and horizontal EHT-correction, the EW output stage should be dimensioned as illustrated in Fig.14. Resistor REW determines the gain of the EW output stage. Resistor Rc determines the reference current for both the vertical sawtooth generator and the geometry processor. The preferred value of Rc is 39 kΩ which results in a reference current of 100 µA (Vref = 3.9 V). The value of REW must be: Example: With Vref = 3.9 V; Rc =39kΩ and Vscan = 120 V then REW =68kΩ. R EW R c V scan 18 V ref × ----------------------- × = |
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