
TDA9109/S
LOW-COST DEFLECTION PROCESSOR
FOR MULTISYNC MONITORS
June 1998
PRELIMINARY DATA
SHRINK32
(Plastic Package)
ORDER CODE : TDA9109/S
HORIZONTAL
.
SELF-ADAPTATIVE
.
DUAL PLL CONCEPT
.
150kHz MAXIMUM FREQUENCY
.
X-RAY PROTECTION INPUT
.
I
2C CONTROLS :
HORIZONTAL
DUTY-CYCLE,
H-POSITION,
FREE RUNNING FREQUENCY, FREQUENCY
GENERATOR FOR BURN-IN MODE
VERTICAL
.
VERTICAL RAMP GENERATOR
.
50 TO 185Hz AGC LOOP
.
GEOMETRY TRACKING WITH VPOS & VAMP
.
I
2C CONTROLS :
VAMP, VPOS, S-CORR, C-CORR
.
DC BREATHING COMPENSATION
I
2C GEOMETRY CORRECTIONS
.
VERTICAL PARABOLA GENERATOR
(Pin Cushion - E/W, Keystone, Corner)
.
HORIZONTAL DYNAMIC PHASE
(Side Pin Balance & Parallelogram)
.
VERTICAL DYNAMIC FOCUS
(Vertical Focus Amplitude)
GENERAL
.
SYNC PROCESSOR
.
12V SUPPLY VOLTAGE
.
8V REFERENCE VOLTAGE
.
HOR. & VERT. LOCK/UNLOCK OUTPUTS
.
READ/WRITE I
2C INTERFACE
.
HORIZONTAL AND VERTICAL MOIRE
.
B+ REGULATOR
- INTERNAL PWM GENERATOR FOR B+
CURRENT MODE STEP-UP CONVERTER
- SOFT START
-I
2C ADJUSTABLE B+ REFERENCE VOLTAGE
- OUTPUT PULSES SYNCHRONIZED ON
HORIZONTAL FREQUENCY
- INTERNAL MAXIMUM CURRENT LIMITATION
.
COMPARED
WITH
THE
TDA9109,
THE TDA9109/S HAS :
- CORNER CORRECTION,
- HORIZONTAL MOIR,
- B+ SOFT START,
- INCREASED MAX. VERTICAL FREQUENCY,
- NO HORIZONTAL FOCUS,
- NO STEP DOWN OPTION FOR DC/DC CON-
VERTER.
DESCRIPTION
The TDA9109/S is a monolithic integrated circuit
assembled in 32-pin shrink dual in line plastic pack-
age. This IC controls all the functions related to the
horizontal and vertical deflection in multimode or
multi-frequency computer display monitors.
The internal sync processor, combined with the very
powerful geometry correction block make the
TDA9109/S suitable for very high performance
monitors, using very few external components.
The horizontal jitter level is very low. It is particularly
well suited for high-end 15" and 17" monitors.
Combined with the ST7275 Microcontroller fam-
ily, TDA9206 (Video preamplifier) and STV942x
(On-Screen Display controller) the TDA9109/S
allows fully I
2C bus controlled computer display
monitors to be built with a reduced number of
external components.
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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