STV6889
HIGH-END I虜C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
PRODUCT PREVIEW
FEATURES
General
鈥?Advanced I
2
C-bus controlled deflection
processor dedicated for high-end CRT monitors
鈥?Single supply voltage 12V
鈥?Very low jitter
鈥?DC/DC converter controller
鈥?Advanced EW drive
鈥?Advanced asymmetry corrections
鈥?Automatic multistandard synchronization
鈥?Vertical dynamic correction waveform output
鈥?X-ray protection and Soft-start & stop on
horizontal and DC/DC drive outputs
鈥?I
2
C-bus status register
Horizontal section
鈥?150 kHz maximum frequency
鈥?Corrections of geometric asymmetry: Pin
cushion asymmetry, Parallelogram, separate
Top/Bottom corner asymmetry
鈥?Tracking of asymmetry corrections with vertical
size and position
鈥?Fully integrated horizontal moir茅 cancellation
Vertical section
鈥?200 Hz maximum frequency
鈥?Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position
鈥?Vertical size and position prescales for factory
adjustment
鈥?Vertical moir茅 cancellation through vertical
ramp waveform
鈥?Compensation of vertical breathing with EHT
variation; I
2
C-bus gain adjustment
EW section
鈥?Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately, S-
and W-corrections
鈥?Horizontal size adjustment
鈥?Tracking of EW waveform with Vertical size and
position, horizontal size and frequency
鈥?Compensation of horizontal breathing with EHT
variation, I
2
C-bus gain adjustment
Dynamic correction section
鈥?Generates vertical waveform for dynamic
corrections like focus, brightness uniformity, ...
鈥?1 output with vertical dynamic correction
waveform, both polarities, tracking with vertical
size and position
DC/DC controller section
鈥?Step-up and step-down conversion modes
鈥?External sawtooth configuration
鈥?I
2
C-bus-controlled output voltage
鈥?Synchronized on hor. frequency with phase
selection
鈥?Selectable polarity of drive signal
鈥?Protection at H unlock condition
DESCRIPTION
The STV6889 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.
Combined with other ST components dedicated
for CRT monitors (microcontroller, video preampli-
fier, video amplifier, OSD controller), the STV6889
allows fully I
2
C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SDIP 32
(Shrink DIP package)
ORDER CODE:
STV6889
Version 1.1
May 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
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