tda4855 NXP Semiconductors, tda4855 Datasheet - Page 19

• Manufacturer Part Number: tda4855
• Description: Autosync Deflection Controller Asdc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
1996 Jul 18
A
V
I
V
V
V
T
f
V
V
Focus section [FOCUS (pin 10)]
I
V
V
EWTRP
H(MULTI)
FOCUS(p-p)
V
RACKING OF
DJUSTMENT OF TRAPEZIUM CORRECTION
TRP(EWDRV)
ref(EWTRP)
off(EWTRP)
PARM(p-p)
PAR(EWDRV)
EWWID
FOCUS(min)
FOCUS(max)
Autosync Deflection Controller (ASDC)
EWDRV
SYMBOL
EWDRV
trapezium correction voltage
input current for maximum
positive trapezium correction
input current for maximum
negative trapezium correction
reference voltage at input
trapezium correction is centred
if EWTRP (pin 20) is forced to
ground
amplitude of superimposed
logarithmic parabola
(peak-to-peak value)
f
parabola amplitude at EWDRV
(pin 11)
linearity error of f
voltage range to inhibit tracking
amplitude of horizontal
parabola (peak-to-peak value)
input voltage for minimum
horizontal parabola amplitude
input voltage for maximum
horizontal parabola amplitude
H
range for tracking
OUTPUT SIGNAL WITH
PARAMETER
H
tracking
(see Figs 3 to 8) [EWTRP (
f
H
PROPORTIONAL VOLTAGE
I
I
note 11
note 15
I
f
I
f
function disabled; note 16 2.7
V
V
EWTRP
EWTRP
HREF
H
HREF
H
FOCUS
FOCUS
= 31.45 kHz; note 16
= 70 kHz; note 16
19
= 1.052 mA;
= 2.341 mA;
CONDITIONS
= 0; note 11
= 135 A;
= 1 V
= 4 V
PIN
20)]
0
24
1.3
2.7
0
0.9
3.65
110
MIN.
+0.5
0
5.0
1.45
3.0
3.0
0.03
1
1.0
4.0
0.5
120
TYP.
Preliminary specification
0.1
145
80
1.6
3.3
3.3
8
0.1
1.1
4.4
MAX.
135
TDA4855
V
V
V
V
mV
kHz
V
V
V
%
V
mA
mA
V
V
A
A
UNIT