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PDF TDA9115 Data sheet ( Hoja de datos )
| Número de pieza | TDA9115 | |
| Descripción | LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR FOR MULTISYNC MONITOR | |
| Fabricantes | ST Microelectronics | |
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TDA9115
LOW-COST I2C CONTROLLED DEFLECTION PROCESSOR
FOR MULTISYNC MONITOR
FEATURES
General
s I2C-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 moiré 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 moiré 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 I2C bus-controlled computer display
monitors to be built with a reduced number of ex-
ternal components.
SHRINK 32 (Plastic Package)
ORDER CODE: TDA9115
August 2001
Version 4.0
1/45
1
1 page  
TDA9115
3 - PIN FUNCTION REFERENCE
Pin Name
1 H/HVSyn
2 VSyn
3 HLckVBk
4 HOscF
5 HPLL2C
6 CO
7 HGND
8 RO
9 HPLL1F
10 HPosF
11 HMoiré
12 HFly
13 RefOut
14 BComp
15 BRegIn
16 BISense
17 HEHTIn
18 VEHTIn
19 VOscF
20 VAGCCap
21 VGND
22 VCap
23 VOut
24 EWOut
25 XRay
26 HOut
27 GND
28 BOut
29 Vcc
30 SCL
31 SDA
32 VDyCor
Function
TTL compatible Horizontal / Horizontal and Vertical Sync. input
TTL compatible Vertical Sync. input
Horizontal PLL1 Lock detection and Vertical early Blanking composite output
High Horizontal Oscillator sawtooth threshold level Filter input
Horizontal PLL2 loop Capacitive filter input
Horizontal Oscillator Capacitor input
Horizontal section GrouND
Horizontal Oscillator Resistor input
Horizontal PLL1 loop Filter input
Horizontal Position Filter and soft-start time constant capacitor input
Horizontal Moiré cancellation output
Horizontal Flyback input
Reference voltage Output
B+ DC/DC error amplifier (Comparator) output
Regulation feedback Input of the B+ DC/DC converter controller
B+ DC/DC converter current (I) Sense input
Input for compensation of Horizontal amplitude versus EHT variation
Input for compensation of Vertical amplitude versus EHT variation
Vertical Oscillator sawtooth low threshold Filter (capacitor to be connected to VGND)
Input for storage Capacitor for Automatic Gain Control loop in Vertical oscillator
Vertical section GrouND
Vertical sawtooth generator Capacitor
Vertical deflection drive Output for a DC-coupled output stage
E/W Output
X-Ray protection input
Horizontal drive Output
Main GrouND
B+ DC/DC converter controller Output
Supply voltage
I2C bus Serial CLock Input
I2C bus Serial DAta input/output
Vertical Dynamic Correction output
5/45
5 Page 
TDA9115
6.5 VERTICAL SECTION
VCC = 12V, Tamb = 25°C
Symbol
Parameter
Test Conditions
AGC-controlled vertical oscillator sawtooth; VRefO = 8V
RL(VAGCCap)
Ext. load resistance on
VAGCCap pin(10)
∆Vamp/Vamp(R=∞) ≤1%
VVOB
Sawtooth bottom voltage on
VCap pin(11)
No load on VOscF pin(11)
VVOT
Sawtooth top voltage on VCap
pin
AGC loop stabilized
V sync present
No V sync
tVODis
fVO(0)
fVOCapt
Sawtooth Discharge time
Free-running frequency
AGC loop capture frequency
CVCap=150nF
CVCap=150nF
CVCap=150nF
V----∆-V---V-O---V-a---mO-----pd---e(--1-v--6---)
∆----V-V---V--V--O-O----S-a---m-–---c-p--o----r
Sawtooth non-linearity(12)
S-correction range
∆----V-V---V--V--O-O----C-a---m-–----cp--o----r
C-correction range
AGC loop stabilized, (12)
AGC loop stabilized, (13)
tVR=1/4 TVR(15)
tVR=3/4 TVR
AGC loop stabilized, (14)
tVR=1/2 TVR(15)
CCOR(Sad0A):
x0000000b
x1000000b
x1111111b
Value
Units
Min. Typ. Max.
65 MΩ
1.8 1.9 2.0
V
5V
4.9 V
80 µs
100 Hz
50 185 Hz
0.5 %
-5 %
+5 %
-3 %
0%
+3 %
V-----V--∆-O---V--a--V-m---O--p---a-⋅--m-∆----pf--V----O--
Frequency drift of sawtooth
amplitude(17)(18)
AGC loop stabilized
fVOCapt(min)≤fVO≤fVOCapt(max)
Vertical outpu t drive signal (on pin VOut);VRefO = 8V
VPOS (Sad08):
Vmid(VOut)
Middle point on VOut sawtooth
x0000000b
x1000000b
x1111111b
Vamp
VoffVOut
IVOut
Amplitude of VOut sawtooth
VSIZE (Sad07):
x0000000b
(peak-to-peak voltage)
x1000000b
x1111111b
Level on VOut pin at V-drive ”off” I2Cbit VOutEn at 0
Current delivered by VOut out-
put
VVEHT
Control input voltage range on
VEHTIn pin
3.65
3.5
-5
1
200 ppm/Hz
3.2 3.3
3.5
3.8
V
V
V
2.25
3.0
3.75
3.8
2.5
5
V
V
V
V
mA
VRefO V
-V----a---m----∆p----V-⋅---∆a---m-V----pV----E----H----T- Breathing compensation
VVEHT>VRefO
V VEHT(mi n)≤VVEHT≤VRefO
0 %/V
2.5 %/V
Note 10: Value of acceptable cumulated parasitic load resistance due to humidity, AGC storage capacitor leakage, etc.,
for less than 1% of Vamp change.
11/45
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TDA9115.PDF ] | |
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