ELECTRICAL CHARACTERISTICS (continued)

Symbol

Parameter

Test conditions

Min.

Typ. Max.

Unit

VERTICAL SECTION

=

dF .

10

6

dV .

300

ppm

V

1

2

C2

R1

R2

I1

if

C1

C3

R3

3

HOR. SYNC.

ϕ1

HORIZONTAL

OSCILLATOR

V

3L

V

DC

V

3L

V (V)

t (s)

= 6.8V

V

H

= 6V

V

= 2V

1/fv

ts

Technical note 1

R1 = 6.8k

Ω

R2 = 56 k

Ω

C2 = 1.8 nF

(A)

voltage range.

The voltage at Pin 3 is limited by two clamping

When the PLL1 is synchronized and perfectly

Remark: The value of C2 influences the horizontal

oscillator free running frequency; it doesn’t effect

the relative pull-in range. If the

horizontal fre-

quency is changed by using R1, the pull-in range

changes accordingly with the formula (A).

Technical note 2

"C5", according with the formula (B):

=

12

is recommended.

Technical note 3

oscillator charging period of the waveform at

Pin 2:

360 x 0.75

4

degree

V

Technical note 4

The second PLL can recover the storage of hori-

zontal output stage maintaining a constant duty

cycle till the trailing edge of the output pulse gets

the trailing edge of the flyback pulse. From this

point on, only the leading edge of the output pulse

will be shifted covering a total phase shift of: 0.30T;

overcoming this value, it will produce a notch in the

Technical note 5

The voltage reference at Pin 19 can be used to

polarize the DC operating point of the vertical

booster. This voltage corresponds to the double of

the mean value voltage of the vertical sawtooth at

Pin 13.

Technical note 6

=

1

=

TDA9102F

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