TDA9725 datasheet(18/44 Pages) PHILIPS

18 / 44 page

1996 Oct 14

Philips Semiconductors

Product speciﬁcation

Y/C automatic adjustment processor

(VHS standard)

TDA9725

LINE NOISE CANCELLER (YNR WEAK; PLAYBACK MODE); note 9

LNC1

depth 1

−30 dB non-recursive

−7.0

−5.5

−4.5

LNC2

depth 2

−20 dB non-recursive

−4.3

−3.3

−2.3

LNC3

depth 3

0 dB non-recursive

−1.0

−0.2

VERTICAL NOISE CANCELLER (YNR STRONG; PLAYBACK MODE); note 9

VNC1

depth 1

−30 dB recursive

−10.0

−8.5

−7.5

VNC2

depth 2

−20 dB recursive

−9.0

−7.5

−6.5

VNC3

depth 3

0 dB recursive

−1.8

−0.4

PICTURE CONTROL; (note 10)

PC1

response 1 (sharp)

V1 =0V; fi = 0.5 MHz

0.5

1.0

PC2

response 2 (sharp)

V1 =0V; fi = 2 MHz

3.7

4.7

5.7

PC3

response 3 (soft)

V1 = 3.2 V; fi = 0.5 MHz

−2.3

−1.3

−0.8

PC4

response 4 (soft)

V1 = 3.2 V; fi = 2 MHz

−6.8

−5.8

−4.8

PC5

response 5 (centre)

pin 1 open-circuit or > 4.1 V;

fi = 2 MHz

−0.5

+0.0

+0.5

delay time

pin 1 open-circuit; fi = 0.1 MHz

185

210

235

Character insert (artiﬁcial sync/black/white/through; pin 42)

internal resistance to

ground

V42 = 0 to 1.0 V

405060k

Ω

VAS

input voltage for artiﬁcial

sync (inserts sync level)

4.0

−

5.0

VAB

input voltage for artiﬁcial

black (inserts black level)

2.75

−

3.5

VAW

input voltage for artiﬁcial

white (inserts white level)

1.5

−

2.25

VTHR

input voltage for through

mode

−

1.0

CVBS input (pin 43)

V43

DC voltage

2.35

2.75

3.15

Vi(p-p)

CVBS input voltage

(peak-to-peak value)

0.3

1.0

2.0

AGC detector (pin 44)

V44

detector voltage

V43 = 1 V (p-p)

1.8

2.5

3.2

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

TDA9725 Datasheet(PDF) 18 Page - NXP Semiconductors

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