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TDA4853 Datasheet, PDF (18/60 Pages) NXP Semiconductors – I2C-bus autosync deflection controllers for PC/TV monitors | |||
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Philips Semiconductors
I2C-bus autosync deï¬ection controllers for
PC/TV monitors
Product speciï¬cation
TDA4853; TDA4854
SYMBOL
PARAMETER
CONDITIONS
MIN.
Horizontal oscillator: pins HCAP and HREF
ffr(H)
âffr(H)
free-running frequency without
PLL1 action (for testing only)
spread of free-running
frequency (excluding spread of
external components)
RHBUF = â;
RHREF = 2.4 kâ¦;
CHCAP = 10 nF; note 3
TCfr
temperature coefï¬cient of
free-running frequency
fH(max)
VHREF
maximum oscillator frequency
voltage at input for reference
current
30.53
â
â100
â
2.43
Unlock blanking detection: pin HUNLOCK
Vscan(HUNLOCK)
low level voltage of HUNLOCK saturation voltage in case â
of locked PLL1; internal
sink current = 1 mA
Vblank(HUNLOCK)
TCblank
TCsink
Isink(int)
blanking level of HUNLOCK
temperature coefï¬cient of
Vblank(HUNLOCK)
temperature coefï¬cient of
Isink(HUNLOCK)
internal sink current
external load current = 0 0.9
â
â
for blanking pulses;
1.4
PLL1 locked
IL(max)
IL
maximum external load current VHUNLOCK = 1 V
â
leakage current
VHUNLOCK = 5 V in case of â
unlocked PLL1 and/or
protection active
PLL1 phase comparator and frequency-locked loop: pins HPLL1 and HBUF
tW(HSYNC)(max)
maximum width of horizontal
â
sync pulse (referenced to line
period)
tlock(HPLL1)
Ictrl(HPLL1)
total lock-in time of PLL1
control currents
â
notes 4 and 5
locked mode, level 1 â
locked mode, level 2 â
VHBUF
buffered f/v voltage at HBUF minimum horizontal
â
(pin 27)
frequency
maximum horizontal
â
frequency
TYP.
31.45
â
0
â
2.55
â
1
â0.9
0.15
2.0
â
â
â
40
15
145
2.5
0.5
MAX. UNIT
32.39 kHz
±3.0 %
+100 10â6/K
130
kHz
2.68 V
250
mV
1.1
V
â
mV/K
â
%/K
2.6
mA
â2
mA
±5
µA
25
%
80
ms
â
µA
â
µA
â
V
â
V
1999 Jul 13
18
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