TDA4855 datasheet(18/44 Pages) PHILIPS

18 / 44 page

1996 Jul 18

Philips Semiconductors

Preliminary speciﬁcation

Autosync Deﬂection Controller (ASDC)

TDA4855

Vertical output stage [VOUT1 (pin 13) and VOUT2 (pin 12)]

∆IVOUT(nom)

nominal differential output

current (peak-to-peak value)

(

∆IVOUT =IVOUT1 − IVOUT2)

nominal settings; note 11

0.76

0.85

0.94

∆IVOUT(max)

maximum differential output

current (peak value)

(

∆IVOUT =IVOUT1 − IVOUT2)

0.54

0.6

0.66

VVOUT1, VVOUT2

allowed voltage at outputs

−

4.2

V(offset)

maximum offset error of vertical

output currents

nominal settings; note 11

−−±2.5

V(lin)

maximum linearity error of

vertical output currents

nominal settings; note 11

−−±1.5

EW drive output

EW DRIVE OUTPUT STAGE [EWDRV (PIN 11)]

VEWDRV

bottom output voltage

(internally stabilized)

VPAR(EWDRV) =0;

VDC(EWDRV) =0;

EWTRP centred

1.05

1.2

1.35

maximum output voltage

note 14

7.0

−−

IEWDRV

output load current

−−±2.0

TCEWDRV

temperature coefﬁcient of

output signal

−−

600

10−6/K

ADJUSTMENT OF EW PARABOLA AMPLITUDE (see Figs 3 to 8) [EWPAR (PIN 21)]

VPAR(EWDRV)

parabola amplitude

IEWPAR = 0; note 11

−

0.05

−

IEWPAR = −135 µA;

note 11

−

IEWPAR

input current for maximum

amplitude

−110

−120

−135

µA

input current for minimum

amplitude

−

−µA

Vref(EWPAR)

reference voltage at input

−

5.0

−

ADJUSTMENT OF HORIZONTAL SIZE (see Figs 3 to 8) [EWWID (PIN 32)]

VDC(EWDRV)

EW parabola DC voltage shift

IEWWID = −135 µA;

note 11

−

0.1

−

IEWWID = 0; note 11

−

4.2

−

IEWWID

input current for maximum DC

shift

−

−µA

input current for minimum DC

shift

−110

−120

−135

µA

Vref(EWWID)

reference voltage at input

−

5.0

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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