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STV6886 Datasheet

  • STV6886

  • LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC M...

  • 486.17KB

  • 43頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STV6886
LOW-COST I
2
C 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
2
s
READ/WRITE I C INTERFACE
s
HORIZONTAL AND VERTICAL MOIRE
s
B+ REGULATOR
- Internal PWM generator for B+ current mode
step-up converter
- Switchable to step-down converter
- I
2
C-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
2
s
I C 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
2
s
I C controls:VAMP, VPOS, S-CORR, C-CORR
s
Vertical breathing compensation
I
2
C 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 I
2
C 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
VSYNCIN
HMOIRE/HLOCK
PLL2C
C0
R0
PLL1F
HPOSITION
HFOCUSCAP
FOCUS-OUT
HGND
HFLY
HREF
COMP
REGIN
I
SENSE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
5V
SDA
SCL
V
CC
BOUT
GND
HOUT
XRAY
EWOUT
VOUT
VCAP
V
REF
VAGCCAP
VGND
VBREATH
B + GND
Version 4.2
April 2000
1/43
1

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