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TDA4854 Datasheet(PDF) 18 Page - NXP Semiconductors |
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TDA4854 Datasheet(HTML) 18 Page - NXP Semiconductors |
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18 / 60 page  1999 Jul 13 18 Philips Semiconductors Product specification I2C-bus autosync deflection controllers for PC/TV monitors TDA4853; TDA4854 Horizontal oscillator: pins HCAP and HREF ffr(H) free-running frequency without PLL1 action (for testing only) RHBUF = ∞; RHREF = 2.4 kΩ; CHCAP = 10 nF; note 3 30.53 31.45 32.39 kHz ∆f fr(H) spread of free-running frequency (excluding spread of external components) −−±3.0 % TCfr temperature coefficient of free-running frequency −100 0 +100 10−6/K fH(max) maximum oscillator frequency −− 130 kHz VHREF voltage at input for reference current 2.43 2.55 2.68 V Unlock blanking detection: pin HUNLOCK Vscan(HUNLOCK) low level voltage of HUNLOCK saturation voltage in case of locked PLL1; internal sink current = 1 mA −− 250 mV Vblank(HUNLOCK) blanking level of HUNLOCK external load current = 0 0.9 1 1.1 V TCblank temperature coefficient of Vblank(HUNLOCK) −−0.9 − mV/K TCsink temperature coefficient of Isink(HUNLOCK) − 0.15 − %/K Isink(int) internal sink current for blanking pulses; PLL1 locked 1.4 2.0 2.6 mA IL(max) maximum external load current VHUNLOCK =1V −−−2mA IL leakage current VHUNLOCK = 5 V in case of unlocked PLL1 and/or protection active −−±5 µA PLL1 phase comparator and frequency-locked loop: pins HPLL1 and HBUF tW(HSYNC)(max) maximum width of horizontal sync pulse (referenced to line period) −− 25 % tlock(HPLL1) total lock-in time of PLL1 − 40 80 ms Ictrl(HPLL1) control currents notes 4 and 5 locked mode, level 1 − 15 −µA locked mode, level 2 − 145 −µA VHBUF buffered f/v voltage at HBUF (pin 27) minimum horizontal frequency − 2.5 − V maximum horizontal frequency − 0.5 − V SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT |
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