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Электронный компонент: STV6889

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May 2004
1/56
This is preliminary information on a new product now in development. Details are subject to change without notice.
Version 1.1
STV6889
HIGH-END IC CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
PRODUCT PREVIEW
FEATURES
General
Advanced I
2
C-bus controlled deflection
processor dedicated for high-end CRT monitors
Single supply voltage 12V
Very low jitter
DC/DC converter controller
Advanced EW drive
Advanced asymmetry corrections
Automatic multistandard synchronization
Vertical dynamic correction waveform output
X-ray protection and Soft-start & stop on
horizontal and DC/DC drive outputs
I
2
C-bus status register
Horizontal section
150 kHz maximum frequency
Corrections of geometric asymmetry: Pin
cushion asymmetry, Parallelogram, separate
Top/Bottom corner asymmetry
Tracking of asymmetry corrections with vertical
size and position
Fully integrated horizontal moir cancellation
Vertical section
200 Hz maximum frequency
Vertical ramp for DC-coupled output stage with
adjustments of: C-correction, S-correction for
super-flat CRT, Vertical size, Vertical position
Vertical size and position prescales for factory
adjustment
Vertical moir cancellation through vertical
ramp waveform
Compensation of vertical breathing with EHT
variation; I
2
C-bus gain adjustment
EW section
Symmetrical geometry corrections: Pin cushion,
Keystone, Top/Bottom corners separately, S-
and W-corrections
Horizontal size adjustment
Tracking of EW waveform with Vertical size and
position, horizontal size and frequency
Compensation of horizontal breathing with EHT
variation, I
2
C-bus gain adjustment
Dynamic correction section
Generates vertical waveform for dynamic
corrections like focus, brightness uniformity, ...
1 output with vertical dynamic correction
waveform, both polarities, tracking with vertical
size and position
DC/DC controller section
Step-up and step-down conversion modes
External sawtooth configuration
I
2
C-bus-controlled output voltage
Synchronized on hor. frequency with phase
selection
Selectable polarity of drive signal
Protection at H unlock condition
DESCRIPTION
The STV6889 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.
Combined with other ST components dedicated
for CRT monitors (microcontroller, video preampli-
fier, video amplifier, OSD controller), the STV6889
allows fully I
2
C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SDIP 32 (Shrink DIP package)
ORDER CODE: STV6889
1
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Table of Contents
3
2/56
1 PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 PIN FUNCTION REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 QUICK REFERENCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6 ELECTRICAL PARAMETERS AND OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . 9
6.1 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.2 Supply and Reference voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.3 Synchronization inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.4 Horizontal section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.5 Vertical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.6 EW drive section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.7 Dynamic correction outputs section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.8 DC/DC controller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6.9 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7 TYPICAL OUTPUT WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
8 IC-BUS CONTROL REGISTER MAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
9 OPERATING DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1 Supply and control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1.1 Power supply and voltage references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1.2 IC-bus control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2 Synchronization processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2.1 Synchronization signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.2.2 Sync. presence detection flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2.3 MCU controlled sync. selection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.2.4 Automatic sync. selection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.3 Horizontal section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.3.2 PLL1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.3.3 Voltage controlled oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.3.4 PLL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
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STV6889
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9.3.5 Dynamic PLL2 phase control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9.3.6 Output Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.3.7 Soft-start and soft-stop on H-drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.3.8 Horizontal moir cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.4 Vertical section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.2 S and C corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.3 Vertical breathing compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.4 Vertical after-gain and offset control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.4.5 Vertical moir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.4.6 Biasing of vertical booster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.5 EW drive section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.6 Dynamic correction outputs section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.6.1 Vertical dynamic correction output
VDyCor
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.7 DC/DC controller section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.7.1 Synchronization of DC/DC controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.7.2 Soft-start and soft-stop on B-drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.8 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.8.1 Safety functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.8.2 Composite output
HLckVBk
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
10 INTERNAL SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
11 PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
12 GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
1
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STV6889
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1 PIN CONFIGURATION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
H/HVSyn
VSyn
HLckVBk
HPLL2C
CO
HGND
RO
HPLL1F
HPosF
IC
HFly
RefOut
BComp
BRegIn
BISense
HOscF
HEHTIn
VEHTIn
VOscF
VAGCCap
VGND
VCap
VOut
EWOut
XRay
HOut
GND
BOut
Vcc
SCL
SDA
VDyCor
2
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STV6889
5/56
2 BLOCK DIAGRAM
Horiz
ontal
VC
O
P
hase
/frequenc
y
comparat
or
Hor
i
z
ont
al

po
si
t
i
on
Lo
ck de
tectio
n
P
LL1
V
-
s
y
nc d
e
tecti
o
n
Inpu
t sele
ction
P
o
larity handli
n
g
Ve
r
t
ical osci
llator
wi
th A
G
C
P
LL2
P
h
a
s
e co
mparator
P
h
a
s
e sh
ifter
H
duty
cont
r
o
ller
Pi
n
cus
h
i
o
n a
symm.
Par
a
l
l
e
l
ogr
am
To
p c
o
rn
er
as
ymm.
B
o
tto
m
co
r
n
e
r

a
s
ym
m
.
H
o
r
.
d
u
ty
cy
cl
e
H-
dr
iv
e
buffer
H
-moir c
ontroll
er
H-moi
r


amp
l
i
t
ude
V-
s
y
n
c
e
x
tracti
on
&
detec
tion
T
r
a
ckin
g
V
-
dy
namic
c
o
rrec
t
i
o
n
(focus, bri
g
htness)
VDyCor
ampl
i
t
ude
H-
sy
n
c
detec
tion
Po
l
a
r
i
t
y
handli
n
g
V
-
bl
ank
H-
l
o
c
k
S
a
fety
pr
oc
e
s
so
r
IC-bus
inte
r
f
ace
Su
p
p
ly
superv
i
sio
n
Refe
r
e
nce
generati
o
n
B+
DC
/D
C
c
onverter
control
l
er
B+
r
e
f
.
V-
ram
p
c
ontrol
Ver
t
i
c
al
si
ze &
p
o
s.
Pre
scal
e
si
ze & pos.
Ver
t
i
c
al
moi
r
E
W
generator
Pi
n
c
u
shi
o
n
Keys
t
o
ne
Top co
rner
s
B
o
tt
o
m
c
o
rn
e
r
s
Int
e
rn
al
ref.
:
M
ul
t
i
pl
e b
i
t

dj
u
s
t
m
e
n
t
s
H

si
ze
S-c
o
r
r
ec
t
i
on
W
-
co
rr
ect
i
on
S-
& C-
co
r
r
ect
i
on
PLL1

sp
eed
H/
HVSy
n
HLckVBk
SD
A
SCL
Vcc
Re
fOu
t
GND
VSyn
V
GND
V
O
s
cF
VAGCC
a
p
VCap
VD
y
C
or
VOut
VEH
T
I
n
H
EHTIn
EW
Out
IC
BCom
p
BR
egI
n
BI
Se
nse
BOut
XRay
HOu
t
H
P
LL2
C
HFl
y
H
O
scF
CO
RO
H
P
LL1F
HPo
s
F
HGND
B
r
ea
t
h
i
n
g

ga
i
n
B
r
ea
t
h
i
n
g
g
a
i
n
10
23
18
17
24
11
14
15
16
28
25
26
5
12
4
6
8
9
7
1
3
31
30
29
13
27
2
21
19
20
22
32
STV
6
8
8
9
IC
-
bus c
ontrol regi
sters

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