ImageQuest Q770 - Page 22

Q770 Technical Service Manual
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MC68HC705BD7B
TDA9116
FEATURES
General
ADVANCED I
2
C BUS CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR HIGH-END CRT MONITORS
• SINGLE SUPPLY VOLTAGE 12V
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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
I
2
C BUS STATUS REGISTER
Horizontal section
150 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
DESCRIPTION
The TDA9116 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
TDA9116 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 TDA9116
allows fully I
2
C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SHRINK 32 (Plastic Package)
ORDER CODE: TDA9116
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