TDA9550 datasheet(74/125 Pages) PHILIPS

74 / 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 107 Selection QSS out or AM out

Table 108 Nominal frequency FM demodulator

Table 109 FM demodulator at 10.7 MHz

Table 110Enable fast blanking ext.RGB/YUV

Table 111 RGB blanking

Table 112 Black current stabilization

Table 113 Cathode drive level (15 steps; 3.5 V/step)

Note

1. The given values are valid for the following conditions:

a) - Nominal CVBS input signal

b) - Nominal settings for contrast, WPA and peaking

c) - Black- and blue-stretch switched-off

d) - Gain of output stage such that no clipping occurs

e) - Beam current limiting not active

f) The tolerance on these values is about

± 3 V.

Table 114Synchronisation on YUV input

Table 115RGB/YUV switch

Note

1. YUV input with the specification:

Y = +1.4 VP-P; U = −1.33 VP-P; V = −1.05 VP-P.

These signal amplitudes are based on a colour bar

signal with 75% saturation.

2. YPRPB input with the specification:

Y = +1.0 VP-P; PB = +0.7 VP-P; PR = +0.7 VP-P.

These signal amplitudes are based on a colour bar

signal with 100% saturation.

Table 116 RGB blanking mode (110

° types)

MODE

QSS output selected

AM output selected

FMC

FMB

FMA

FREQUENCY

5.5 MHz

6.0 MHz

4.5 MHz

6.5 MHz

5.74 MHz

6.75 MHz

4.74 MHz

8.60 MHz

FMD

MODE

frequency FM demodulator determined by the

bits FMA, FMB and FMC

frequency FM demodulator 10.7 MHz

IE2

FAST BLANKING

not active

active

RBL

RGB BLANKING

not active

active

AKB

MODE

active

not active

CL3

CL2

CL1

CL0

SETTING CATHODE

DRIVE AMPLITUDE;

NOTE 1

0000

50 VBL-WH

0111

75 VBL-WH

1111

95 VBL-WH

SOY

MODE

sync coupled to CVBS (Y) input

sync coupled to Y input

YUV1

YUV0

MODE

RGB input activated

spare

YUV input; input conditions: note 1

YPRPB input; input conditions: note 2

HBL

MODE

normal blanking (horizontal ﬂyback)

wide blanking

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