TDA8844 datasheet(22/68 Pages) PHILIPS

22 / 68 page

December 16, 1997

Philips Semiconductors

Tentative Device Speciﬁcation

I2C-bus controlled PAL/NTSC/SECAM TV

processors

TDA884X/5X-N2 series

Table 35 AFC window

Table 36 IF sensitivity

Table 37 Modulation standard

Table 38 Video mute

Table 39 Sound mute

Table 40 Fixed audio volume

Table 41 PLL demodulator frequency adjust

AFW

AFC WINDOW

normal

enlarged

IFS

IF SENSITIVITY

normal

reduced

MOD

MODULATION

negative

positive

VSW

STATE

normal operation

IF-video signal switched off

STATE

normal operation

sound mute active

FAV

MODE

normal volume control

audio output level ﬁxed

IFA

IFB

IFC

IF FREQUENCY

58.75 MHz

45.75 MHz

38.90 MHz

38.00 MHz

33.40 MHz

33.90 MHz

Table 42 Switch-off in vertical overscan

Table 43 Vertical scan disable

Table 44 Chroma bandpass centre frequency

Table 45 Blue stretch

Table 46 Black stretch

Table 47 2nd CVBS output (TDA 885X)

Table 48 Blue back when no video signal is identiﬁed

Table 49 Helper output blanking (PALPLUS)

OSO

MODE

Switch-off undeﬁned

Switch-off in vertical overscan

VSD

MODE

Vertical scan active

Vertical scan disabled

CENTRE FREQUENCY

0FSC

1.1 x FSC

BLS

BLUE STRETCH MODE

0off

1on

BKS

BLACK STRETCH MODE

0off

1on

CS1

CS0

CVBS-2 OUTPUT

internal CVBS

external CVBS

Y/C (Y + C)

CVBS-3

BLUE BACK

0off

1on

HOB

OUTPUT BLANKING

not active

active

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