Datenblatt-Suchmaschine für elektronische Bauteile |
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TEA2031A Datenblatt(PDF) 2 Page - STMicroelectronics |
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TEA2031A Datenblatt(HTML) 2 Page - STMicroelectronics |
2 / 8 page TEA2031A 2/11 Figure 2. Pin Connections Figure 3. Block Diagram GENERAL DESCRIPTION The TEA2031A is intended to provide to 110° color TV sets a parabolic and keystone frame rate mod- ulated correction in addition to the main horizontal scanning. A stable 6.3V internal reference provides current and voltage references to the whole IC. Pins 1 and 2 are two symmetrical inputs of an on- chip multiplier circuit and are internally held at 6.3V reference potential level. Current inputs to these pins are drawn from external sources via ap- propriate resistors. The frame saw-tooth wave- form which has a peak-to-peak value of around 3 volts and a mean value of about 2.5 volts, supplies 1 2 3 4 8 7 6 5 MULTIPLIER INPUT 1 CURRENT REFERENCE GROUND MULTIPLIER INPUT 2 COMPARATOR INPUT 2 MULTIPLIER OUTPUT AND COMPARATOR INPUT 1 OUTPUT CC 1 AND 2 CAN BE INVERTED V POWER SUPPLY 65 87 6.8mH To DIODE MODULATOR 123 4 VCC +24V Multiplier DC 6.3V i1 VREF K . (I1 - I2) 2 VCC 50 µA Comparator 100 Ω Line SAW-TOOTH TEA2031A 120 µA i2 Frame SAW-TOOTH |
Ähnliche Teilenummer - TEA2031A |
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Ähnliche Beschreibung - TEA2031A |
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