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TDA9108 Datasheet

MONITOR HORIZONTAL PROCESSOR

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TDA9108
MONITOR HORIZONTAL PROCESSOR
. POS/NEG SYNC INPUT
. SYNC POLARITY DETECTION
. 2 PLLs CONCEPT
. 2 COMPLEMENTARY OUTPUTS
. DC ADJUSTABLE FREQUENCY
. DC ADJUSTABLE DUTY CYCLE
. X-RAY PROT INPUT
. BACK PORCH CLAMPING PULSE GENER-
ATOR
. H-DRIVE INHIBITION WHEN VS < VS START
DESCRIPTION
The TDA9108 is a horizontal deflection processor
specially designed for monitor applications. The
H-drive output duty cycle, the horizontal frequency
and the horizontal position are DC adjustable ; it
accepts both POS/NEG polarity on sync input and
delivers polarity information on a dedicated pin. All
these features make the device a good choice for
multifrequency application.In addition to this, X-ray
protection, 2 complementary H-drive output , and
a back porch clamping pulse generator are also
included. It is a monolithic integrated circuit encap-
sulated in a 14 lead dual line plastic package.
PIN CONNECTIONS
SU PP LY VOLTAGE
NEGATIVE H-DRIVE
POSITIVE H-DRIVE
DUTY CYCLE ADJUSTMENT
2nd PLL LOOP FILTER
FLYBACK INPUT
BACK PORCH CLAMPING PULSE OUTPUT
1
2
3
4
5
6
7
October 1993
DIP14
(Plastic Package)
ORDER CODE : TDA9108
14 GR OUN D
13 H-FREQUENCY SETTING
12 H-OSCILLATOR CAPACITOR
11 1st PLL LOOP FILTER
10 SYNC POLARITY
9 SYN C INPUT
8 X-RAY PROTECTION INPUT
1/9


STMicroelectronics Electronic Components Datasheet

TDA9108 Datasheet

MONITOR HORIZONTAL PROCESSOR

No Preview Available !

TDA9108
BLOCK DIAGRAM
HOR IZONTAL
FLYBACK IN
76
LOO P
FILTER
5
SUPPLY 1
GROUND 14
INPUT 9
BACK PORCH
CLAMP PULSE
GENERATOR
2nd PHASE
COMPARATOR
SYNC
EXTRACTOR
H-S ync
HORIZONTAL
PULSE
SHAPER
4 HORIZONTAL
DUTY CYCLE
OUTPUT
STAGE
2 NEGATIVE OUTPUT
3 POSIT IVE OUTPUT
SYNC 10
POLARITY
POLARITY
DETECTION
1st PHASE
COMPARATOR
11
LOOP FILTER
OSCILLATOR
13 12
RC
THYRISTOR
FUNCTION
8 X-RAY
PROT INPUT
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
V2
V4
V8
V9
V10
I2
I3
I6
I7
Ptot
Tstg , Tj
Parameter
Supply Voltage (Pin 1)
Voltage at Pin 2
Voltage at Pin 4
Voltage at Pin 8
Voltage at Pin 9
Voltage at Pin 10
Pin 2 Peak Current
Pin 3 Peak Current
Pin 6 Input Current
Pin 7 Input Current
Total Power Dissipation at Tamb 70oC
Storage and Junction Temperature
Value
15
18
0, VS
0 , VS
0 , VS
0, VS
1
0.5
30
10
0.9
- 40 , + 150
Unit
V
V
V
V
V
V
A
A
mA
mA
W
oC
THERMAL DATA
Symbol
Parameter
Rth (j-a) Thermal Resistance Junction-ambient
Max.
Value
90
Unit
oC/W
ELECTRICAL CHARACTERISTICS
(refer to the test circuit, VS = 12V, TA = 25oC, unless otherwise specified)
Symbol
VS
IS
VS
Parameter
Supply Voltage Range
Supply Current (Pin 1)
Supply voltage at which the output pulses
(at Pin 2 and 3) are switched off
Test conditions
I3 = 0
Min.
10
Typ.
12
38
Max.
13.2
55
4
Unit
V
mA
V
2/9


Part Number TDA9108
Description MONITOR HORIZONTAL PROCESSOR
Maker ST Microelectronics
Total Page 9 Pages
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