Philips Semiconductors
Product specification
I2C-bus autosync deflection controller for
PC monitors
TDA4841PS
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Horizontal oscillator: pins HCAP and HREF
ffr(H)
free-running frequency without RHBUF = ∞;
30.53
31.45
32.39
kHz
PLL1 action (for testing only)
RHREF = 2.4 kΩ;
CHCAP = 10 nF; note 3
∆ffr(H)
TCfr
spread of free-running
frequency (excluding spread of
external components)
−
−
±3.0
%
temperature coefficient of
free-running frequency
−100
0
+100
10−6/K
fH(max)
VHREF
maximum oscillator frequency
−
−
130
kHz
V
voltage at input for reference
current
2.43
2.55
2.68
Unlock blanking detection: pin HUNLOCK
Vscan(HUNLOCK)
low-level voltage of HUNLOCK saturation voltage in case
of locked PLL1; internal
−
−
250
mV
sink current = 1 mA
Vblank(HUNLOCK)
TCblank
blanking level of HUNLOCK
IL = 0
0.9
1
1.1
V
temperature coefficient of
Vblank(HUNLOCK)
−
−0.9
−
mV/K
TCsink
Isink(int)
temperature coefficient of
Isink(HUNLOCK)
−
0.15
2.0
−
%/K
mA
internal sink current
for blanking pulses;
PLL1 locked
1.4
2.6
IL(max)
ILI
maximum external load current VHUNLOCK = 1 V
leakage current VHUNLOCK = 5 V in case of
−
−
−
−
−2
±5
mA
µA
unlocked PLL1 and/or
protection active
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
80
%
tlock(HPLL1)
Ictrl(HPLL1)
total lock-in time of PLL1
control currents
40
ms
notes 4 and 5
locked mode; level 1
locked mode; level 2
−
−
−
15
−
−
−
µA
µA
V
145
2.55
VHBUF
buffered f/v voltage at HBUF
(pin 27)
minimum horizontal
frequency
maximum horizontal
frequency
−
0.5
−
V
1999 Oct 25
17
NXP [ NXP ]
