TDA9108

MONITOR HORIZONTAL PROCESSOR

October 1993

DIP14

(Plastic Package)

ORDER CODE : TDA9108

.

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

.

1

2

3

4

5

6

7

14

13

12

11

10

9

8

SU PP LY VOLTAGE

NEGATIVE H-DRIVE

POSITIVE H-DRIVE

DUTY CYCLE ADJUSTMENT

2nd PLL LOOP FILTER

FLYBACK INPUT

BACK PORCH CLAMPING PULSE OUTPUT

GR OUN D

H-FREQUENCY SE TTING

H-OSCILLATOR CAPACITOR

1st PLL LOOP FILTER

SYNC POLARITY

SYN C INPUT

X-RAY PROTECTION INPUT

PIN CONNECTIONS

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.

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