TDA9178 datasheet(16/36 Pages) PHILIPS

16 / 36 page

1999 Sep 24

Philips Semiconductors

Preliminary speciﬁcation

YUV one chip picture improvement based on luminance

vector-, colour vector- and spectral processor

TDA9178

output resistance

−−

150

Ω

Io(bias)

output bias current

1.3

−−

load capacitance

−−

COLOUR DIFFERENCE INPUTS U AND V(PINS UIN AND VIN)

Vi(U)(p-p)

input voltage U

(peak-to-peak value)

−

1.33

1.9

Vi(V)(p-p)

input voltage V

(peak-to-peak value)

−

1.05

1.9

Ii(bias)

input bias current

no clamp

−−

0.1

µA

COLOUR DIFFERENCE OUTPUTS U AND V(PINS UOUT AND VOUT)

Vo(cl)

output voltage level during

clamping

−

2.7

−

GUV(i-o)

gain inputs to output

transparent

0.90

1.00

1.10

Eoffset

offset error

transparent

−1

∆G

track

UV gain tracking error

transparent

−−

BUV

bandwidth

1fH mode;

transparent (

−3 dB)

2.5

−−

MHz

2fH mode;

transparent (

−3 dB)

−−

MHz

output resistance

−−

150

Ω

Io(bias)

output bias current

1.3

−−

load capacitance

−−

Luminance vector processing

BLACK STRETCH

BLOScor(i)

input black offset correction

HISTOGRAM

White-point stretch

GWP(max)

maximum luminance gain for white

stretch

maximum non-linearity

setting gain

−

1.1

−

Non-linear ampliﬁer

Gnla(min)

minimum segment gain

maximum non-linearity

setting gain

−

0.4

−

Gnla(max)

maximum segment gain

maximum non-linearity

setting gain

−

2.0

−

Gnla

non-linear control curve

63 steps

−

0 to 100

−

VARIABLE GAMMA

Gg(var)(min)L

minimum variable gamma setting

−

0.5

−

Gg(var)(max)

maximum variable gamma setting

−

1.5

−

Gnla

non-linear control curve

63 steps

−

0 to 100

−

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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