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STV6888
LOW-COST I2C DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
Version 4.1
STV6888LOW-COST I2 C CONTROLLED DEFLECTION PROCESSOR
FOR MUL TISYNC MONITOR
FEATURES
General ADVANCED I2 C BUS CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR HIGH-END CRT MONITORS SINGLE SUPPLY VOLTAGE 12V VERY LOW JITTER DC/DC CONVERTER CONTROLLER ADVANCED EW DRIVE ADVANCED ASYMMETRY CORRECTIONS AUTOMATIC MULTISTANDARD
SYNCHRONIZATION VERTICAL DYNAMIC CORRECTION
WAVEFORM OUTPUT X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTSI2 C BUS STATUS REGISTER
Horizontal section 100 kHz maximum frequency Corrections of geometric asymmetry:
Pin cushion asymmetry, Parallelogram Tracking of asymmetry corrections with vertical
size and position Fully integrated internal horizontal moiré
cancellation and moiré cancellation output
Vertical section 200 Hz maximum frequency Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position Vertical moiré cancellation through vertical
ramp waveform Compensation of vertical breathing with EHT
variation
EW section Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately Horizontal size adjustment Tracking of EW waveform with Vertical size and position and adaptation to frequency Compensation of horizontal breathing through
EW waveform
Dynamic correction section Output with vertical dynamic correction
waveform for dynamic corrections like focus,
brightness uniformity, ... Fixed on screen by means of tracking system
DC/DC controller section Step-up and step-down conversion modes External sawtooth configuration Bus-controlled output voltage Synchronization on hor. frequency with phase
selection Selectable polarity of drive signal
DESCRIPTIONThe STV6888 is a monolithic integrated circuit as-
sembled in a 32-pin shrink dual-in-line plastic
package. This IC controls all the functions related
to horizontal and vertical deflection in multimode
or multi-frequency computer display monitors.
The internal sync processor, combined with the
powerful geometry correction block, makes the
STV6888 suitable for very high performance mon-
itors, using few external components.
Combined with other ST components dedicated
for CRT monitors (microcontroller, video preampli-
fier, video amplifier, OSD controller) the STV6888
allows fully I2C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components
ORDERING INFORMATION
