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參數(shù)資料
| 型號(hào)： | TDA9112 |
| 廠商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 偏轉(zhuǎn) |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP32 |
| 封裝： | PLASTIC, SDIP-32 |
| 文件頁(yè)數(shù)： | 1/51頁(yè) |
| 文件大小： | 809K |
| 代理商： | TDA9112 |
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Version 4.2
August 2003
1/51
TDA9112
LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
s
ADVANCED I2C BUS CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR HIGH-END CRT MONITORS
s
SINGLE SUPPLY VOLTAGE 12V
s
VERY LOW JITTER
s
DC/DC CONVERTER CONTROLLER
s
ADVANCED EW DRIVE
s
ADVANCED ASYMMETRY CORRECTIONS
s
AUTOMATIC MULTISTANDARD
SYNCHRONIZATION
s
2 DYNAMIC CORRECTION WAVEFORM
OUTPUTS
s
X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTS
s
I2C BUS STATUS REGISTER
Horizontal section
s
150 kHz maximum frequency
s
Corrections of geometric asymmetry: Pin
cushion asymmetry, Parallelogram, separate
Top/Bottom corner asymmetry
s
Tracking of asymmetry corrections with vertical
size and position
s
Fully integrated horizontal moiré cancellation
Vertical section
s
200 Hz maximum frequency
s
Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position
s
Vertical moiré cancellation through vertical
ramp waveform
s
Compensation of vertical breathing with EHT
variation
EW section
s
Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately
s
Horizontal size adjustment
s
Tracking of EW waveform with Vertical size and
position and adaptation to frequency
s
Compensation of horizontal breathing through
EW waveform
Dynamic correction section
s
Generates waveforms for dynamic corrections
like focus, brightness uniformity, ...
s
1 output with vertical dynamic correction
waveform
s
1 output with composite HV dynamic correction
waveform
s
Fixed on screen by means of tracking system
DC/DC controller section
s
Step-up and step-down conversion modes
s
Internal and external sawtooth configurations
s
Bus-controlled output voltage
s
Synchronization on hor. frequency with phase
selection
s
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 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 TDA9112
allows fully I2C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
ORDERING INFORMATION
Ordering code
Package
TDA9112
Shrink 32
1
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