Philips Semiconductors
Product specification
I2C-bus autosync deflection controller for
PC monitors
TDA4841PS
Vertical linearity error
(1)
handbook, halfpage
I
VOUT
MBG551
(µA)
+415
(2)
1
I
(3)
I
2
0
(4)
3
I
(1) IVOUT = IVOUT1 − IVOUT2
.
−415
(2) I1 = IVOUT at VVCAP = 1.9 V.
(3) I2 = IVOUT at VVCAP = 2.6 V.
(4) I3 = IVOUT at VVCAP = 3.3 V.
V
VCAP
I
1 – I3
Which means: I0
=
--------------
2
I
1 – I2
I2 – I3
Vertical linearity error = 1 – max
or
--------------
I0
--------------
I0
Fig.27 Definition of vertical linearity error.
H-focus pre-correction
handbook, halfpage
(1)
(2)
MGS282
t
t
= 450 ns
= 300 ns
precor
precor
(1) Line flyback pulse at HFLB (pin 1).
(2) Horizontal focus parabola at FOCUS (pin 32).
Fig.28 Definition of H-focus pre-correction.
46
1999 Oct 25
NXP [ NXP ]
