TDA4857PS Datasheet, PDF (21/56 Pages) NXP Semiconductors – I2C-bus autosync deflection controller for PC monitors

Philips Semiconductors
I²C-bus autosync deflection controller for
PC monitors
Product specification
TDA4857PS
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
V_HEHT(EWDRV)
I_i(HSMOD)
R_i(HSMOD)
V_ref(HSMOD)
f_ro(HSMOD)
EHT compensation on
horizontal size via HSMOD
(pin 31)
input current (pin 31)
input resistance
reference voltage at input
roll-off frequency (−3 dB)
I_HSMOD = 0; note 8
−
I_HSMOD = −120 µA; note 8 −
V_HEHT = 0.02 V
−
V_HEHT = 0.69 V
−
300
I_HSMOD = 0
−
I_HSMOD = −60 µA + 15 µA 1
(RMS)
0.69
0.02
0
−120
−
5.0
−
TRACKING OF EWDRV OUTPUT SIGNAL WITH HORIZONTAL FREQUENCY PROPORTIONAL VOLTAGE
f_H(MULTI)
V_PAR(EWDRV)
LE_EWDRV
horizontal frequency range for
15
tracking
parabola amplitude at EWDRV I_HREF = 1.052 mA;
−
(pin 11)
f_H = 31.45 kHz;
control bit FHMULT = 1;
note 10
I_HREF = 2.341 mA;
−
f_H = 70 kHz;
control bit FHMULT = 1;
note 10
function disabled;
−
control bit FHMULT = 0;
note 10
linearity error of horizontal
−
frequency tracking
−
0.72
1.42
1.42
−
Output for asymmetric EW corrections: pin ASCOR
V_{HPARAL(ASCOR)} vertical sawtooth voltage for
EW parallelogram correction
V_{HPINBAL(ASCOR)} vertical parabola voltage for pin
unbalance correction
V_{o(ASCOR)(max)(p-p)} maximum output voltage swing
(peak-to-peak value)
V_{o(ASCOR)(max)}
V_c(ASCOR)
V_{o(ASCOR)(min)}
I_{o(ASCOR)(max)}
maximum output voltage
centre voltage
minimum output voltage
maximum output current
register HPARAL = 0;
−
control bit HPC = 0; note 8
register HPARAL = 15; −
control bit HPC = 0; note 8
register HPARAL = X;
−
control bit HPC = 1; note 8
register HPINBAL = 0;
−
control bit HBC = 0; note 8
register HPINBAL = 15; −
control bit HBC = 0; note 8
register HPINBAL = X;
−
control bit HBC = 1; note 8
−
−
−
−
V_ASCOR ≥ 1.9 V
−
−0.825
0.825
0.05
−1.0
1.0
0.05
4
6.5
4.0
1.9
−1.5
MAX.
−
−
−
−
500
−
−
80
−
−
−
8
−
−
−
−
−
−
−
−
−
−
−
UNIT
V
V
µA
µA
Ω
V
MHz
kHz
V
V
V
%
V
V
V
V
V
V
V
V
V
V
mA
2000 Jan 31
21