TDA9108
MONITOR HORIZONTAL PROCESSOR
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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 V
S
< V
S START
DIP14
(Plastic Package)
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
ORDER CODE :
TDA9108
SU PP LY VOLTAGE
NEGATIVE H-DRIVE
1
2
3
4
5
6
7
14
13
GR OUN D
H-FREQUENCY SETTING
POSITIVE H-DRIVE
DUTY CYCLE ADJUSTMENT
2nd PLL LOOP FILTER
FLYBACK INPUT
BACK PORCH CLAMPING PULSE OUTPUT
12
11
10
9
8
H-OSCILLATOR CAPACITOR
1st PLL LOOP FILTER
SYNC POLARITY
SYN C INPUT
X-RAY PROTECTION INPUT
9108-01.EPS
October 1993
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