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TDA9115
LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR LOW-END CRT MONITORS
Version 4.1
TDA9115LOW-COST I2 C CONTROLLED DEFLECTION PROCESSOR
FOR MUL TISYNC MONITOR
FEATURES
GeneralI2 C-BUS-CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR LOW-END CRT MONITORS SINGLE SUPPLY VOLTAGE 12V VERY LOW JITTER DC/DC CONVERTER CONTROLLER ADVANCED EW DRIVE AUTOMATIC MULTISTANDARD
SYNCHRONIZATION DYNAMIC CORRECTION WAVEFORM
OUTPUT X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTS
Horizontal section 150 kHz maximum frequency Corrections of geometric asymmetry:
Pin cushion asymmetry, Parallelogram Tracking of asymmetry corrections with vertical
size and position Horizontal 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 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 Vertical dynamic correction waveform output 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 Synchronization on hor. frequency with phase
selection Selectable polarity of drive signal
DESCRIPTIONThe TDA9115 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 device only requires very few external compo-
nents.
Combined with other ST components dedicated
for CRT monitors (microcontroller, video preampli-
fier, video amplifier, OSD controller) the TDA9115
allows fully I2C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
ORDERING INFORMATION
