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STV6889 bảng dữ liệu(PDF) 1 Page - STMicroelectronics

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May 2004
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This is preliminary information on a new product now in development. Details are subject to change without notice.
Version 1.1
STV6889
HIGH-END I²C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
PRODUCT PREVIEW
FEATURES
General
• Advanced I2C-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 outputs
•I2C-bus status register
Horizontal section
• 150 kHz maximum frequency
• Corrections of geometric asymmetry: Pin
cushion asymmetry, Parallelogram, separate
Top/Bottom corner asymmetry
• Tracking of asymmetry corrections with vertical
size and position
• Fully integrated horizontal moiré cancellation
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 size and position prescales for factory
adjustment
• Vertical moiré cancellation through vertical
ramp waveform
• Compensation of vertical breathing with EHT
variation; I2C-bus gain adjustment
EW section
• Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately, S-
and W-corrections
• Horizontal size adjustment
• Tracking of EW waveform with Vertical size and
position, horizontal size and frequency
• Compensation of horizontal breathing with EHT
variation, I2C-bus gain adjustment
Dynamic correction section
• Generates vertical waveform for dynamic
corrections like focus, brightness uniformity, ...
• 1 output with vertical dynamic correction
waveform, both polarities, tracking with vertical
size and position
DC/DC controller section
• Step-up and step-down conversion modes
• External sawtooth configuration
•I2C-bus-controlled output voltage
• Synchronized on hor. frequency with phase
selection
• Selectable polarity of drive signal
• 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 I2C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SDIP 32 (Shrink DIP package)
ORDER CODE: STV6889
1


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