STV6889 Datasheet, PDF (41/56 Pages) STMicroelectronics – HIGH-END I²C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR

Figure 14. Geometric corrections’ schematic diagram
STV6889
V_midref
X²
Int. V-ramp
X⁴
(linear, before
corrections)
X³
VDC-AMP
VDyCorPol ^V_VD-DC
-1
VDyCor
32
Keystone
Pin cushion
Top corner
Bot. corner
“W”
“S”
KEYST
PCC
TCC
BCC
EWWC
EWSC
Parallelogram
PARAL
Pin cushion
asymmetry
Top corner
asymmetry
Bottom corner
asymmetry
PCAC
TCAC
BCAC
HSIZE
H-size control
DC
0...2.5V
Breathing
HEHTG
tracking
V_HEHTnull
17
HEHTIn
V_EW-base
V_EW(max)
0V
EWOut
0V
24
V_EW(min)
Tracking
1
with hor.
frequency
EWTrHFr ⁰
0V
9
HPLL1F
To HPLL2
V_HOThrfr
Internal dynamic
phase waveform
Controls:
1-quadrant
2-quadrant
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