STV6886 Datasheet, PDF (1/43 Pages) STMicroelectronics – LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR

STV6886
LOW-COST I²C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
s SYNC PROCESSOR (separate or composite)
s 12V SUPPLY VOLTAGE
s 8V REFERENCE VOLTAGE
s HOR. LOCK/UNLOCK OUTPUT
s HOR. & VERT. LOCK/UNLOCK INDICATION
s READ/WRITE I²C INTERFACE
s HORIZONTAL AND VERTICAL MOIRE
s B+ REGULATOR
- Internal PWM generator for B+ current mode
step-up converter
- Switchable to step-down converter
- I²C-adjustable B+ reference voltage
- Output pulses synchronized on horizontal
frequency
- Internal maximum current limitation.
Horizontal
s Self-adaptative
s Dual PLL concept
s 80kHz maximum frequency
s X-ray protection input
s I²C controls: Horizontal duty-cycle, H-position,
horizontal size amplitude
Vertical
s Vertical ramp generator
s 50 to 120 Hz agc loop
s Geometry tracking with VPOS & VAMP
s I²C controls:VAMP, VPOS, S-CORR, C-CORR
s Vertical breathing compensation
I²C Geometry Corrections
s Vertical parabola generator (Pin Cushion - E/W,
Keystone, Corner Correction)
s Horizontal dynamic phase
(Side Pin Balance & Parallelogram)
s Horizontal and vertical dynamic focus
(Horizontal Focus Amplitude, Horizontal Focus
Symmetry, Vertical Focus Amplitude)
DESCRIPTION
The STV6886 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
STV6886 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 STV6886
allows fully I²C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SHRINK32 (Plastic Package)
ORDER CODE: STV6886
PIN CONNECTIONS
H/HVIN 1
VSYNCIN 2
HMOIRE/HLOCK 3
PLL2C 4
C0 5
R0 6
PLL1F 7
HPOSITION 8
HFOCUSCAP 9
FOCUS-OUT 10
HGND 11
HFLY 12
HREF 13
COMP 14
REGIN 15
I_SENSE 16
32 5V
31 SDA
30 SCL
29 V_CC
28 BOUT
27 GND
26 HOUT
25 XRAY
24 EWOUT
23 VOUT
22 VCAP
21 V_REF
20 VAGCCAP
19 VGND
18 VBREATH
17 B + GND
April 2000
Version 4.2
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