Philips Semiconductors
Product specification
I2C-bus autosync deflection controller for
PC monitors
TDA4856
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
EW drive output
EW DRIVE OUTPUT STAGE: pin EWDRV; see Figs 8 to 11
Vconst(EWDRV)
bottom output voltage at
pin EWDRV
(internally stabilized)
register HPIN = 0;
1.05
1.2
1.35
V
register HTRAP = 32;
register HSIZE = 255;
control bit VSC = 1
Vo(EWDRV)(max)
IL(EWDRV)
maximum output voltage
load current
note 9
7.0
−
−
−
−
−
V
±2
600
mA
10−6/K
TCEWDRV
temperature coefficient of
output signal
−
VHPIN(EWDRV)
horizontal pincushion
register HPIN = 0; control
bit VSC = 1; note 8
−
−
−
−
−
−
−
−
−
−
−
−
0.04
1.42
0.2
−
−
−
−
−
−
−
−
−
−
−
−
V
V
V
V
V
V
V
V
V
V
V
V
register HPIN = 63;
control bit VSC = 1; note 8
VHCORT(EWDRV)
horizontal corner correction at register HCORT = 0;
top of picture
control bit VSC = 0; note 8
register HCORT = 63;
control bit VSC = 0; note 8
−0.64
0
register HCORT = X;
control bit VSC = 1; note 8
VHCORB(EWDRV)
VHTRAP(EWDRV)
VHSIZE(EWDRV)
horizontal corner correction at register HCORB = 0;
bottom of picture
0.2
control bit VSC = 0; note 8
register HCORB = 63;
control bit VSC = 0; note 8
−0.64
0
register HCORB = X;
control bit VSC = 1; note 8
horizontal trapezium correction register HTRAP = 63;
note 8
−0.5
0.5
register HTRAP = 0;
note 8
register HTRAP = 32;
note 8
−0.01
0.13
horizontal size
register HSIZE = 255;
note 8
register HSIZE = 0; note 8
IHSMOD = 0; note 8
−
−
−
3.6
−
−
−
V
V
V
VHEHT(EWDRV)
EHT compensation on
horizontal size via HSMOD
(pin 31)
0.02
0.69
IHSMOD = −120 µA; note 8
Ii(HSMOD)
input current (pin 31)
VHEHT = 0.02 V
VHEHT = 0.69 V
−
0
−
µA
µA
Ω
−
−120
−
−
Ri(HSMOD)
Vref(HSMOD)
fro(HSMOD)
input resistance
300
−
500
−
reference voltage at input
roll-off frequency (−3 dB)
IHSMOD = 0
5.0
−
V
IHSMOD = −60 µA
+ 15 µA (RMS)
1
−
MHz
1999 Jul 13
22
NXP [ NXP ]
