STV6888 Datasheet, PDF (1/46 Pages) STMicroelectronics – LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR

STV6888
LOW-COST I²C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
s ADVANCED I²C BUS CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR HIGH-END CRT MONITORS
s SINGLE SUPPLY VOLTAGE 12V
s VERY LOW JITTER
s DC/DC CONVERTER CONTROLLER
s ADVANCED EW DRIVE
s ADVANCED ASYMMETRY CORRECTIONS
s AUTOMATIC MULTISTANDARD
SYNCHRONIZATION
s VERTICAL DYNAMIC CORRECTION
WAVEFORM OUTPUT
s X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTS
s I²C BUS STATUS REGISTER
Horizontal section
s 100 kHz maximum frequency
s Corrections of geometric asymmetry:
Pin cushion asymmetry, Parallelogram
s Tracking of asymmetry corrections with vertical
size and position
s Fully integrated internal horizontal moiré
cancellation and moiré cancellation output
Vertical section
s 200 Hz maximum frequency
s Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position
s Vertical moiré cancellation through vertical
ramp waveform
s Compensation of vertical breathing with EHT
variation
EW section
s Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately
s Horizontal size adjustment
s Tracking of EW waveform with Vertical size and
position and adaptation to frequency
s Compensation of horizontal breathing through
EW waveform
August 2003
Dynamic correction section
s Output with vertical dynamic correction
waveform for dynamic corrections like focus,
brightness uniformity, ...
s Fixed on screen by means of tracking system
DC/DC controller section
s Step-up and step-down conversion modes
s External sawtooth configuration
s Bus-controlled output voltage
s Synchronization on hor. frequency with phase
selection
s Selectable polarity of drive signal
DESCRIPTION
The 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
Ordering code
STV6888
package
Shrink 32
.
Version 4.1
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