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TDA8303A Folha de dados(PDF) 10 Page - NXP Semiconductors |
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TDA8303A Folha de dados(HTML) 10 Page - NXP Semiconductors |
10 / 21 page July 1992 10 Philips Semiconductors Preliminary specification Small signal combination IC for black/white TV TDA8303 TDA8303A SECOND CONTROL LOOP (POSITIVE EDGE) control sensitivity note 22 − 100 − td control range − 25 −µs PHASE ADJUSTMENT (VIA SECOND CONTROL LOOP) control sensitivity − 25 −µA/µs α maximum allowed phase shift −±2 −µs HORIZONTAL OSCILLATOR ffr free running frequency R = 34.3 k Ω; C = 2.7 nF − 15625 − Hz ∆f spread with fixed external components −− 4% ∆ffr frequency variations with supply voltage from 9.5 to 13.2 V −− 2% ∆fT frequency variation with temperature note 25 −−1.6 − Hz/ °C ∆f fr maximum frequency deviation at start of horizontal output −− 10 % ∆f frequency variation when only noise is received note 25 −− 500 Hz HORIZONTAL OUTPUT (PIN 26; OPEN COLLECTOR) V26 output limiting voltage −− 16.5 V VOL LOW level output voltage Isink = 10 mA − 0.2 0.5 V Isink maximum sink current 10 −− mA duty factor of output signal − 46 − % tr rise time of output pulse − 260 − ns tf fall time of output pulse − 100 − ns HORIZONTAL FLYBACK INPUT (PIN 27) I27 required input current during flyback pulse 0.01 − 1.0 mA COINCIDENCE DETECTOR V22 voltage for in-sync condition − 9.8 − V V22 voltage for no-sync condition no signal − 1.5 − V V22 switching level to the phase detector from fast to slow 6.2 6.7 7.2 V V22 hysteresis slow to fast − 0.6 − V V22 switching level to activate the mute function (transmitter identification) 2.5 2.8 3.1 V V22 hysteresis mute function − 2 − V td delay of mute release after transmitter insertion −− 300 µs allowable load on pin 22 −− 10 µA V22 external video mode −− 0.7 V I22 current at pin 22 V22 = 0 V −− 0.8 mA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT δt d δt o ------- |
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Descrição semelhante - TDA8303A |
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