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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TDA9160 датащи(PDF) 21 Page - NXP Semiconductors |
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TDA9160 датащи(HTML) 21 Page - NXP Semiconductors |
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21 / 27 page  December 1991 21 Philips Semiconductors Preliminary specification PAL/NTSC/SECAM decoder/sync processor TDA9160 QUALITY SPECIFICATION Quality level according to URV 4-2-59/601. Test and application information EW output stage In order to obtain the correct tracking of the vertical and horizontal EHT correction, the EW output stage should be configured as illustrated in figure 8. Note to Fig.8 Resistor Rew determines the gain of the EW output stage. Resistor Rc sets the reference current for both the vertical sawtooth generator and the geometry processor. The preferred value of Rc = 39 kΩ results in a reference current of 100 µA (V ref = 3.9 V). The value of Rew is given in the following equation: Example: If Vref = 3.9 kΩ, Rc = 39 kΩ and Vscan = 120 V then Rew = 68 kΩ SYMBOL PARAMETER RANGE A RANGE B UNIT ESD protection circuit specification (note1) 2000 500 V 100 200 pF 1500 0 Ω Fig.8 Configuration of the EW output stage. R ew R c V scan 18 V ref ) × ( -------------------------------- × = |
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