TDA9554PS datasheet(71/125 Pages) PHILIPS

71 / 125 page

2000 Jun 22

Philips Semiconductors

Tentative Device Speciﬁcation

TV signal processor-Teletext decoder with

embedded

µ-Controller

TDA955X/6X/8X PS/N1 series

Table 65

Automatic colour limiting

Table 66

Chroma bandpass centre frequency

Table 67

Bypass of chroma base-band delay line

Table 68

Forced Colour-On

Table 69 Selected video out (pin 38)

Table 70 Condition AVL/SNDIF/REFO/REFIN (pin 27)

Table 71 Source select

Table 72 Selection of audio output signal on AUDEEM

pin, note 1

Note

1. This function can be activated only when the MOD bit

is 0.

Table 73 Blanking of RGB outputs

Table 74 Synchronization of OSD/TEXT display

Table 75

Phase 1 (

ϕ1) time constant

Table 76

Synchronization mode

Table 77

Stand-by

Table 78

Video ident mode

ACL

COLOUR LIMITING

not active

active

CENTRE FREQUENCY

0FSC

1.1

× FSC

BPS

DELAY LINE MODE

active

bypassed

FCO

CONDITION

off

1on

SVO

CONDITION

IF video available at output

selected CVBS available at output

CMB1 CMB0

CONDITION

AVL/SNDIF active (depends on SIF bit)

output voltage 2.3 V + subcarrier;

output voltage 0 V

output voltage 4.5V

INA

INB

INC

SELECTED SIGNALS

CVBS1

CVBS2

100

Y/C

E2D

MODE

deemphasis (front-end audio available)

selected audio signal available

RGBL

CONDITION

normal operation

RGB outputs blanked continuously

HP2

µ-CONTROLLER COUPLED TO

ϕ1 loop

ϕ2 loop

FOA

FOB

MODE

normal

slow

slow/fast

fast

POC

MODE

active

not active

STB

MODE

stand-by

normal

VIM

MODE

ident coupled to internal CVBS (pin 40)

ident coupled to selected CVBS

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