TDA9171 datasheet(7/20 Pages) PHILIPS

7 / 20 page

1996 Jun 17

Philips Semiconductors

Preliminary speciﬁcation

YUV picture improvement processor based

on histogram modiﬁcation and blue stretch

TDA9171

CHARACTERISTICS

VCC =8V; Tamb =25 °C; unless otherwise speciﬁed.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supplies

VCC

supply voltage

7.2

−

8.8

ICC

supply current

−

Vref

reference voltage

−

5.0

−

Iload

load current

−−

1mA

Luminance input and output selection

LUMINANCE INPUT (PIN 7)

ViY(es)

input voltage (excluding sync)

ViAMPSEL = low

−

0.3

0.45

ViAMPSEL = middle or high −

1.0

1.5

ViY(cl)

input voltage level during clamping

−

1.5

−

IY(bias)

input bias current

−−

0.1

µA

LUMINANCE INPUT VOLTAGE RANGE SELECTION (PIN 6)

ViAMPSEL(l)

input voltage for lower range

ViAMPSEL = low

−−

0.5

ViAMPSEL(h)

input voltage for higher range

ViAMPSEL = high

3.5

5.0

5.5

ViAMPSEL(m) input voltage for higher range

including 0.7 attenuation

ViAMPSEL = middle

1.5

−

2.5

IAMPSEL(bias) input bias current

−−

µA

LUMINANCE OUTPUT (PIN 14)

VoY(es)

output voltage (excluding sync)

ViAMPSEL = low

−

0.3

−

ViAMPSEL = high

−

1.0

−

VoY(is)

output voltage (including sync)

ViAMPSEL = middle

−

1.0

−

VoY(cl)

output voltage level during clamping

ViAMPSEL = low

−

2.8

−

ViAMPSEL = high

−

1.7

−

ViAMPSEL = middle

−

2.2

−

VoN

output voltage noise

with respect to peak

white

−−−52

bandwidth

minimum NLC gain

−

MHz

BY(nl)

bandwidth non-linear processing

−−

MHz

Ebl

black level error

minimum NLC gain

−−

1.0

EG(n)

nominal gain error

minimum NLC gain;

ViAMPSEL = low

−−

minimum NLC gain;

ViAMPSEL = middle or high

−−

load capacitance

fi = 5 MHz

−−

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