Version 4.0
August 2001
1/45
TDA9115
LOW-COST I
2
C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
s
I
2
C-BUS-CONTROLLED
DEFLECTION PROCESSOR DEDICATED
FOR LOW-END CRT MONITORS
s
SINGLE SUPPLY VOLTAGE 12V
s
VERY LOW JITTER
s
DC/DC CONVERTER CONTROLLER
s
ADVANCED EW DRIVE
s
AUTOMATIC MULTISTANDARD
SYNCHRONIZATION
s
DYNAMIC CORRECTION WAVEFORM
OUTPUT
s
X-RAY PROTECTION AND SOFT-START &
STOP ON HORIZONTAL AND DC/DC DRIVE
OUTPUTS
Horizontal section
s
150 kHz maximum frequency
s
Corrections of geometric asymmetry:
Pin cushion asymmetry, Parallelogram
s
Tracking of asymmetry corrections with vertical
size and position
s
Horizontal moir cancellation output
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 moir cancellation through vertical
ramp waveform
s
Compensation of vertical breathing with EHT
variation
EW section
s
Symmetrical geometry corrections: Pin cushion,
Keystone
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
Vertical dynamic correction waveform output for
dynamic corrections like focus, brightness
uniformity, ...
s
Fixed on screen by means of tracking system
DC/DC controller section
s
Step-up and step-down conversion modes
s
External sawtooth configuration
s
Synchronization on hor. frequency with phase
selection
s
Selectable polarity of drive signal
DESCRIPTION
The TDA9115 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 device only requires very few external compo-
nents.
Combined with other ST components dedicated
for CRT monitors (microcontroller, video preampli-
fier, video amplifier, OSD controller) the TDA9115
allows fully I
2
C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SHRINK 32 (Plastic Package)
ORDER CODE: TDA9115
1
TABLE OF CONTENTS
2
2/45
1 -PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 -BLOCK DIAGRAM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 -PIN FUNCTION REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 -QUICK REFERENCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 -ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6 -ELECTRICAL PARAMETERS AND OPERATING CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . 8
6.1 THERMAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.2 SUPPLY AND REFERENCE VOLTAGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.3 SYNCHRONIZATION INPUTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.4 HORIZONTAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.5 VERTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6.6 EW DRIVE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.7 DYNAMIC CORRECTION OUTPUTS SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.8 DC/DC CONTROLLER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.9 MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 -TYPICAL OUTPUT WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8 -I
2
C BUS CONTROL REGISTER MAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 -OPERATING DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 SUPPLY AND CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1.1 Power supply and voltage references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1.2 I
2
C Bus Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2 SYNC. PROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2.1 Synchronization signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.2.2 Automatic sync. selection mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.3 HORIZONTAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.3.2 PLL1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
9.3.3 Voltage controlled oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.3.4 PLL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.3.5 Dynamic PLL2 phase control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.3.6 Output section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.3.7 Soft-start and soft-stop on H-drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.3.8 Horizontal moir cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
9.4 VERTICAL SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
9.4.2 Vertical moir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.5 EW DRIVE SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9.6 DYNAMIC CORRECTION OUTPUT SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.6.1 Vertical Dynamic Correction output VDyCor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.7 DC/DC CONTROLLER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.8 MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.8.1 Safety functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.8.2 Soft start and soft stop functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.8.3 X-ray protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.8.4 Composite output HLckVBk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10 -INTERNAL SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
11 -PACKAGE MECHANICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
12 -GLOSSARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
TDA9115
3/45
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
HMoir
HFly
RefOut
BComp
BRegIn
BISense
HOscF
HEHTIn
VEHTIn
VOscF
VAGCCap
VGND
VCap
VOut
EWOut
XRay
HOut
GND
BOut
Vcc
SCL
SDA
VDyCor
TDA9115
4/4
5
2
-
BL
OCK
DIAGR
AM
TDA9115
Horizontal
VCO
Phase/frequency
comparator
Horizontal position
Lock detection
PLL1
V-sync detection
Input selection
Polarity handling
Vertical oscillator
with AGC
S-correction
C-correction
PLL2
Phase comparator
Phase shifter
H duty controller
Pin cushion asymm.
Parallelogram
H-drive
buffer
H-moir controller
H-moir amplitude
V-sync
extraction
& detection
Geometry
tracking
V-dynamic
correction
(focus, bright.)
VDyCor amplitude
H-sync
detection
Polarity
handling
V-blank
H-lock
3
HLckVBk
Safety
processor
25
XRay
11
HMoir
32
VDyCor
19
VOscF
21
VGND
2
VSyn
27
GND
26
HOut
5
HPLL2C
12
HFly
4
HOscF
6
C0
8
R0
9
HPLL1F
10
HPosF
7
HGND
H/HVSyn
1
I
2
C Bus
interface
31
SDA
SCL
30
Supply
supervision
Reference
generation
13
RefOut
29
Vcc
I
2
C Bus registers
B+
DC/DC
converter
controller
28
BOut
16
BISense
15
BRegIn
14
BComp
VAGCCap
20
22
VCap
V-ramp control
Tracking EHT
Vertical size
Vertical position
Vertical moir
18
VEHTIn
23
VOut
17
HEHTIn
EW generator
Pin cushion
Keystone
24
EWOut
Internal
ref.
:
Functions controlled via I
2
C Bus
H size
TDA9115
5/45
3 - PIN FUNCTION REFERENCE
Pin
Name
Function
1
H/HVSyn
TTL compatible Horizontal / Horizontal and Vertical Sync. input
2
VSyn
TTL compatible Vertical Sync. input
3
HLckVBk
Horizontal PLL1 Lock detection and Vertical early Blanking composite output
4
HOscF
High Horizontal Oscillator sawtooth threshold level Filter input
5
HPLL2C
Horizontal PLL2 loop Capacitive filter input
6
CO
Horizontal Oscillator Capacitor input
7
HGND
Horizontal section GrouND
8
RO
Horizontal Oscillator Resistor input
9
HPLL1F
Horizontal PLL1 loop Filter input
10
HPosF
Horizontal Position Filter and soft-start time constant capacitor input
11
HMoir
Horizontal Moir cancellation output
12
HFly
Horizontal Flyback input
13
RefOut
Reference voltage Output
14
BComp
B+ DC/DC error amplifier (Comparator) output
15
BRegIn
Regulation feedback Input of the B+ DC/DC converter controller
16
BISense
B+ DC/DC converter current (I) Sense input
17
HEHTIn
Input for compensation of Horizontal amplitude versus EHT variation
18
VEHTIn
Input for compensation of Vertical amplitude versus EHT variation
19
VOscF
Vertical Oscillator sawtooth low threshold Filter (capacitor to be connected to VGND)
20
VAGCCap
Input for storage Capacitor for Automatic Gain Control loop in Vertical oscillator
21
VGND
Vertical section GrouND
22
VCap
Vertical sawtooth generator Capacitor
23
VOut
Vertical deflection drive Output for a DC-coupled output stage
24
EWOut
E/W Output
25
XRay
X-Ray protection input
26
HOut
Horizontal drive Output
27
GND
Main GrouND
28
BOut
B+ DC/DC converter controller Output
29
Vcc
Supply voltage
30
SCL
I
2
C bus Serial CLock Input
31
SDA
I
2
C bus Serial DAta input/output
32
VDyCor
Vertical Dynamic Correction output
PDF 
ZIP