參數(shù)資料
型號(hào)： TDA9112
廠商： 意法半導(dǎo)體
英文描述： LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR
中文描述： 低費(fèi)用的I2C可控?fù)隙榷嗤斤@示器處理器
文件頁數(shù)： 1/51頁
文件大?。?/td> 621K
代理商： TDA9112
Version 4.2
November 2001
1/51
TDA9112
LOW-COST I
2
C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
I
ADVANCED I
2
C BUS CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR HIGH-END CRT MONITORS
I
SINGLE SUPPLY VOLTAGE 12V
I
VERY LOW JITTER
I
DC/DC CONVERTER CONTROLLER
I
ADVANCED EW DRIVE
I
ADVANCED ASYMMETRY CORRECTIONS
I
AUTOMATIC MULTISTANDARD
SYNCHRONIZATION
I
2 DYNAMIC CORRECTION WAVEFORM
OUTPUTS
I
X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTS
I
I
2
C BUS STATUS REGISTER
Horizontal section
I
150 kHz maximum frequency
I
Corrections of geometric asymmetry: Pin
cushion asymmetry, Parallelogram, separate
Top/Bottom corner asymmetry
I
Tracking of asymmetry corrections with vertical
size and position
I
Fully integrated horizontal moiré cancellation
Vertical section
I
200 Hz maximum frequency
I
Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position
I
Vertical moiré cancellation through vertical
ramp waveform
I
Compensation of vertical breathing with EHT
variation
EW section
I
Symmetricalgeometrycorrections:Pin cushion,
Keystone, Top/Bottom corners separately
I
Horizontal size adjustment
I
Tracking of EWwaveform withVertical sizeand
position and adaptation to frequency
I
Compensation of horizontal breathing through
EW waveform
Dynamic correction section
I
Generates waveforms for dynamic corrections
like focus, brightness uniformity, ...
I
1 output with vertical dynamic correction
waveform
I
1 output with composite HV dynamic correction
waveform
I
Fixed on screen by means of tracking system
DC/DC controller section
I
Step-up and step-down conversion modes
I
Internal and external sawtooth configurations
I
Bus-controlled output voltage
I
Synchronization on hor. frequency with phase
selection
I
Selectable polarity of drive signal
DESCRIPTION
The TDA9112 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
TDA9112 suitablefor very high performance mon-
itors, using few external components.
Combined with other ST components dedicated
for CRTmonitors (microcontroller, video preampli-
fier, video amplifier, OSD controller) the TDA9112
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:
TDA9112
1
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