Datasheet SAA5244AGP, SAA5244AP Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

SAA5244A

Integrated VIP and teletext decoder
(IVT1.1)

Product specification
File under Integrated Circuits, IC02

March 1992

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

FEATURES

• Complete teletext decoder including page memory in a
single 40-pin DIL package

• Single +5 V power supply

• Digital data slicer and display clock phase-locked loop

reduces peripheral components to a minimum

• Both video and scan related synchronization modes are
supported

• On board single page memory including extension
packets for FASTEXT

• Single page acquisition system

• RGB interface to standard colour decoder ICs, push-pull

output drive

• Data capture performance similar to SAA5231 (VIP2)

2

• Simple software control via I

• Option for five national languages

• 32 supplementary characters for on-screen displays

• Optional storage of packet 24 in the display memory

• Page links in packets 27 and 8/30 are Hamming

decoded

• Separate text and video signal quality detectors,
625/525 video status and language version all readable
via I2C-bus

• Automatic ODD/EVEN output control with manual
override

• Control of display PLL free-run and rolling header via
I2C-bus

• VCS to SCS mode for stable 525 line status display

C-bus

SAA5244A

DESCRIPTION

The Integrated VIP and Teletext (IVT1.1) is a teletext
decoder (contained within a single-chip package) for
decoding 625-line based World System Teletext
transmissions. The teletext decoder hardware is based on
a reduced function version of the device SAA5246
(IVT1.0).
The Video Input Processor (VIP) section of the device
uses mixed analog and digital designs for the data slicer
and the display clock phase-locked loop functions. As a
result the number of external components is greatly
reduced and no critical or adjustable components are
required. A single page static RAM is incorporated in the
device thereby giving a genuine single-chip teletext
decoder device.

ORDERING INFORMATION

EXTENDED TYPE

NUMBER

SAA5244AP 40 DIL plastic SOT129

SAA5244AGP 44 QFP plastic SOT205A

Notes

1. SOT129-1; 1996 December 16.

2. SOT205-1; 1996 December 16.

March 1992 2

PINS PIN POSITION MATERIAL CODE

PACKAGE

(1)

(2)

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

QUICK REFERENCE DATA

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

V

DD

I

DD

V

syn

V

vid

f

XTAL

T

amb

positive supply voltage 4.5 5 5.5 V
supply current − 74 148 mA
sync amplitude 0.1 0.3 0.6 V
video amplitude 0.7 1 1.4 V
crystal frequency − 27 − MHz
operating ambient temperature range −20 − 70 °C

March 1992 3

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

handbook, full pagewidth

Y

BLAN

23 19 21 18 15-17 22

DATA

SLICER

AND

CLOCK

REGENERATOR

RGBREF RGB

DISPLAY

ODD / EVENCOR

TELETEXT

ACQUISITION

AND

DECODING

PAGE

MEMORY

SAA5244A

V

SS

REF

OSCOUT

OSCIN

DCVBS

5

6

2
3

2

I

C-BUS

INTERFACE

ANALOG

TO

DIGITAL

CONVERTER

CRYSTAL

OSCILLATOR

4 7 9 8 11 13 12

OSCGND BLACK IREF CVBS POL STTV / LFB

TIMING

CHAIN

INPUT

CLAMP

AND SYNC

SEPARATOR

SAA5244A

DISPLAY

CLOCK
PHASE

LOCKED

LOOP

VCR / FFB

25

SDA

24

SCL

1

V

DD

10
14

20

V

DD

V

SS

MLA228 - 1

Fig.1 Block diagram for SOT129 (DIL40) package.

March 1992 4

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

PINNING

SYMBOL SOT129 SOT205A DESCRIPTION

V

DD

OSCOUT 2 19 27 MHz crystal oscillator output
OSCIN 3 20 27 MHz crystal oscillator input
OSCGND 4 21 0 V crystal oscillator ground
V

SS

REF−−− negative reference voltage for the ADC. The pin should be connected to 0 V
REF+ 6 23 positive reference voltage for the ADC. The pin should be connected to +5 V
BLACK 7 24 video black level storage pin, connected to ground via a 100 nF capacitor
CVBS 8 25 composite video input pin. A positive-going 1 V (peak-to-peak) input is required,

IREF 9 26 reference current input pin, connected to ground via a 27 kΩ resistor
V

DD

POL 11 28 STTV/LFB/FFB polarity selection pin
STTV/LFB 12 29 sync to TV output pin/line flyback input pin. Function controlled by an internal

VCR/FFB 13 32 PLL time constant switch/field flyback input pin. Function controlled by an

V

SS

R 15 34 dot rate character output of the RED colour information
G 16 35 dot rate character output of the GREEN colour information
B 17 36 dot rate character output of the BLUE colour information
RGBREF 18 37 input DC voltage to define the output high level on the RGB pins
BLAN 19 38 dot rate fast blanking output
V

SS

COR 21 40 programmable output to provide contrast reduction of the TV picture for mixed

ODD/

EVEN 22 41 25 Hz output synchronized with the CVBS input’s field sync pulses to produce a

Y 23 42 dot rate character output of teletext foreground colour information open drain

SCL 24 43 serial clock input for the I

SDA 25 44 serial data port for the I

n.c. − 4 to 7

i.c. 26 to 40 1 to 3

1 18 +5 V supply

5 22 0 V ground

connected via a 100 nF capacitor

10 27 +5 V supply

register bit (scan sync mode)

internal register bit (scan sync mode)

14 33 0 V ground

20 39 0 V ground

text and picture displays or when viewing newsflash/subtitle pages; open drain
output

non-interlaced display by adjustment of the vertical deflection currents

output

device

power-down of the device
not connected

30, 31

internally connected. Must be left open-circuit in application

8 to 17

2

C-bus. It can still be driven during power-down of the

2

C-bus; open drain output. It can still be driven during

March 1992 5

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

handbook, halfpage

V

DD

OSCOUT

OSCIN

OSCGND

V

SS

REF

BLACK

CVBS

IREF

V

DD

POL

STTV / LFB

VCR / FFB

V

SS

R

1
2
3
4
5
6
7
8
9

10

SAA5244A

11
12
13

15

40
39
38
37
36
35

34

i.c.

33
32
31
30
29
28
2714
26

SAA5244A

RGBREF

BLAN

V

SS

G

16

B

17
18
19
20

MLA035 - 3

SDA

25

SCL

24

Y

23

ODD / EVEN

22

COR

21

Fig.2 Pin configuration; SOT129 (DIL40).

March 1992 6

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

SDA

handbook, full pagewidth

i.c.

n.c.

i.c.

index
corner

1
2
3
4
5
6
7
8
9

10

11

SCL

44

43

ODD / EVEN

Y
42

41

SAA5244A

COR

40

SAA5244A

G

VSS

RGBREF

BLAN

B

R

39

38

37

36

35

34

33

V

SS

32

VCR / FFB

31

n.c.

30

n.c.

29

STTV / LFB

28

POL

27

V

DD

26

IREF

25

CVBS

24

BLACK

23

REF

20

21

OSCIN

OSCGND

22

VSS

12

13

14

15

16

17

18

19

DD

i.c.

V

OSCOUT

Fig.3 Pin configuration; SOT205A (QFPL44).

MLA227 - 2

March 1992 7

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

LIMITING VALUES

In accordance with the Absolute Maximum System (IEC 134)

SYMBOL PARAMETER MIN. MAX. UNIT

V

DD

V

I

V

O

I

O

I

IOK

T

amb

T

stg

V

stat

Note

1. The human body model ESD simulation is equivalent to discharging a 100 pF capacitor through a 1.5 kΩ resistor;
this produces a single discharge transient. Reference Philips Semiconductors test method UZW-B0/FQ-A302
(compatible with MIL-STD method 3015.7).

supply voltage (all supplies) −0.3 6.5 V
input voltage (any input) −0.3 VDD+0.5 V
output voltage (any output) −0.3 VDD+0.5 V
output current (each output) −±10 mA
DC input or output diode current −±20 mA
operating ambient temperature range −20 70 °C
storage temperature range −55 125 °C
electrostatic handling

human body model (note 1) −2000 2000 V

Failure Rate

The failure rate at T

=55°C will be a maximum of 1000 FITS (1 FIT = 1 x 10−9 failures per hour).

amb

March 1992 8

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

CHARACTERISTICS

V

=5 V±10%; T

DD

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

DD

I

DD

supply voltage range (VDD−VSS) 4.5 5 5.5 V
total supply current − 74 148 mA

Inputs

CVBS
V

t

syn

syn

sync amplitude 0.1 0.3 0.6 V
delay from CVBS to TCS

output from STTV buffer
(nominal video, average of
leading/trailing edge)

t

syd

change in sync delay between
all black and all white video
input at nominal levels

V

vid(p-p)

video input amplitude
(peak-to-peak)

display PLL catching range ±7 −− %

Z

src

C

I

source impedance −−250 Ω

input capacitance −−10 pF
IREF
R

g

resistor to ground − 27 − kΩ
POL
V

IL

V

IH

I

LI

C

I

input voltage LOW −0.3 − 0.8 V

input voltage HIGH 2.0 − VDD+0.5 V

input leakage current VI= 0 to V

input capacitance −−10 pF
LFB
V

IL

V

IH

I

LI

I

I

t

LFB

input voltage LOW −0.3 − 0.8 V

input voltage HIGH 2.0 − VDD+0.5 V

input leakage current VI= 0 to V

input current note 1 −1 − 1mA

delay between LFB front edge

and input video line sync
VCR/FFB
V

IL

V

IH

I

LI

I

I

input voltage LOW −0.3 − 0.8 V

input voltage HIGH 2.0 − VDD+.5 V

input leakage current VI= 0 to V

input current note 1 −1 − 1mA

= −20 to +70 °C, unless otherwise specified

amb

DD

DD

DD

−150 0 150 ns

0 − 25 ns

0.7 1 1.4 V

−10 − 10 µA

−10 − 10 µA

− 250 − ns

−10 − 10 µA

March 1992 9

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Inputs

RGBREF (NOTE 2)
V

I

I

LI

I

DC

SCL
V

IL

V

IH

I

LI

f

SCL

t

r

t

f

C

I

Inputs/outputs

input voltage −0.3 − VDD+0.5 V

input leakage current VI= 0 to V

DD

−10 − 10 µA

DC current −−10 mA

input voltage LOW −0.3 − 1.5 V

input voltage HIGH 3.0 − VDD+0.5 V

input leakage current VI= 0 to V

DD

−10 − 10 µA
clock frequency 0 − 100 kHz
input rise time 10% to 90% −−2µs
input fall time 90% to 10% −−2µs
input capacitance −−10 pF

C

RYSTAL OSCILLATOR (OSCIN; OSCOUT)

f

XTAL

G

v

G

m

C

l

C

FB

crystal frequency − 27 − MHz
small signal voltage gain 3.5 −− −
mutual conductance f = 100 kHz 1.5 −− mA/V
input capacitance −−10 pF
feedback capacitance −−5pF

BLACK
C

blk

I

LI

storage capacitor to ground − 100 − nF
input leakage current VI= 0 to V

SDA
V

IL

V

IH

I

LI

C

l

t

r

t

f

V

OL

t

f

C

L

input voltage LOW −0.3 − 1.5 V
input voltage HIGH 3.0 − VDD+0.5 V
input leakage current VI= 0 to V
input capacitance −−10 pF
input rise time 10% to 90% −−2µs
input fall time 90% to 10% −−2µs
output voltage LOW IOL= 3 mA 0 − 0.5 V
output fall time 3 to 1 V −−200 ns
load capacitance −−400 pF

DD

DD

−10 − 10 µA

−10 − 10 µA

March 1992 10

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Outputs

STTV
G

stt

gain of STTV relative to video
input

V

tcs

V

DCs

TCS amplitude 0.2 0.3 0.45 V
DC shift between TCS output

and nominal video output

I

O

C

L

output drive current −−3.0 mA
load capacitance −−100 pF

R, G AND B
V

OL

V

OH

output voltage LOW IOL= 2 mA 0 − 0.2 V
output voltage HIGH IOH= −1.6 mA;

RGBREF ≤
VDD−2 V

 output impedance −−200 Ω

Z

o

C

L

I

DC

t

r

t

f

load capacitance −−50 pF
DC current −−−3.3 mA
output rise time 10% to 90% −−20 ns
output fall time 90% to 10% −−20 ns

BLAN
V

OL

V

OH

output voltage LOW IOL= 1.6 mA 0 − 0.4 V
output voltage HIGH IOH= −0.2 mA;

VDD= 4.5 V

V

OH

output voltage HIGH IOH= 0 mA;

VDD= 5.5 V

V

OH

C

L

t

r

t

f

allowed voltage at pin with external pull-up −−VDDV
load capacitance −−50 pF
output rise time 10% to 90% −−20 ns
output fall time 90% to 10% −−20 ns

ODD/EVEN
V

OL

V

OH

C

L

t

r

t

f

output voltage LOW IOL= 1.6 mA 0 − 0.4 V
output voltage HIGH IOH= −1.6 mA VDD−0.4 − V
load capacitance −−120 pF
output rise time 0.6 to 2.2 V −−50 ns
output fall time 2.2 to 0.6V −−50 ns

0.9 1.0 1.1

−−0.15 V

RGBREF

−0.25 V

RGBREF RGBREF

+0.25 V

V

1.1 −− V

−−2.8 V

DD

V

March 1992 11

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Outputs

COR AND Y(OPEN DRAIN)
V

OH

V

OL

C

L

t

f

I

LO

T

SK

Timing

2

I

C-BUS

t

LOW

t

HIGH

t

SU;DAT

t

HD;DAT

t

SU;STO

t

BUF

t

HD;STA

t

SU;STA

pull-up voltage at pin −−VDDV
output voltage LOW IOL= 5 mA 0 − 1.0 V
load capacitance −−25 pF
output fall time load resistor of

−−50 ns

1.2 kΩ to VDD;
measured between

−0.5 and 1.5 V

V

DD

output leakage current VI= 0 to V
skew delay between display

DD

−10 − 10 µA

−−20 ns

outputs R, G, B, COR, Y and
BLAN

clock LOW period 4 −− µs
clock HIGH period 4 −− µs
data set-up time 250 −− ns
data hold time 170 −− ns
set-up time from clock HIGH

4 −− µs

to STOP
START set-up time following a

4 −− µs

STOP
START hold time 4 −− µs
START set-up time following

4 −− µs

clock LOW-to-HIGH transition

Notes to the characteristics

1. This current is the maximum allowed into the inputs when line and field flyback signals are connected to these inputs.
Series current limiting resistors must be used to limit the input currents to ± 1 mA.

2. RGBREF is the positive supply for the RGB output pins and it must be able to source the IOH current from the R, G
and B pins. The leakage specification on RGBREF only applies when there is no current load on the RGB pins.

March 1992 12

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March 1992 13

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

(IVT1.1)

LSP

(Line Sync Pulse)

EP

(Equalizing Pulse)

BP

(Broad Pulse)

TCS interlaced

TCS interlaced

TCS non-interlaced

0 4.66

0 2.33

0

32 34.33

27.33 32

[1]

621

(308)

309 310 311 312 313 314 (1) 315 (2) 316 (3) 317 (4) 318 (5) 319 (6) 320 (7)

308 309 310 311 312 1 2 3 4 5 6 7

622

(309)

[2]

623

(310)

624

(311)

625

(312)

1 2 3456 7

59.33

64 µs

64 µs

64 µs

MLA037 - 2

[1] LSP, EP and BP are combined to give TCS as shown below. All timings measured from falling edge of LSP.
[2] Line numbers placed in the middle of the line. Equivalent count numbers in brackets.

handbook, full pagewidth

Fig.4 Composite sync waveforms.

SAA5244A

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

handbook, full pagewidth

LSP

(TCS)

R, G, B, Y

(1)

R, G, B, Y

(1)

0 4.66

0

0

16.67

lines 42 to 291 inclusive (and 355 to 604 inclusive interlaced)

41

(a) LINE RATE

(b) FIELD RATE

40 µs

display period

display period

56.67 µs

291

line numbers

SAA5244A

64 µs

312

MLA662 - 1

(1) also BLAN in character and box blanking

handbook, full pagewidth

SDA

t

BUF

SCL

SDA

MBC764

Fig.5 Display output timing (a) line rate (b) field rate.

t

HD;STA

t

LOW

t

r

t

SU;STA

t

HD;DAT

t

HIGH

t

f

t

SU;DAT

t

SU;STO

Fig.6 I2C-bus timing.

March 1992 14

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March 1992 15

FIRST FIELD START (EVEN)

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

(IVT1.1)

TCS interlaced

ODD/EVEN output
(normal sync mode)

ODD/EVEN output
(normal sync mode
when VCS to SCS
mode active)

ODD/EVEN output
(slave sync mode)

TCS interlaced

621

(308)

309 310 311 312

622

(309)

623

(310)

2 µs

624

(311)

625

(312)

313 314 (1) 315 (2) 316 (3) 317 (4) 318 (5) 319 (6) 320 (7)

1 2 3456 7

48 µs

31 µs

SECOND FIELD START (ODD)

ODD/EVEN output
(normal sync mode)

ODD/EVEN output
(normal sync mode
when VCS to SCS
mode active)

ODD/EVEN output
(slave sync mode)

2 µs

16 µs

SAA5244A

31 µs

MBA073 - 4

Line numbers placed in the middle of the line. Equivalent count numbers in brackets.

Fig.7 ODD/EVEN timing.

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

APPLICATION INFORMATION

handbook, full pagewidth

10 p 100 nF15 p

SS
DD

CVBS

R17 27

V

DDD

(1)

C1C2C3

100 nF

SS

STTV / LFB

VCR / FFB

R9

RGBREF

C4

1 nF

R1

3.3
kΩ

27 MHz, 3rd Overtone

V

DD

V

SS

L1

4.7 µH

X1

V

SS V

C8
100
nF

LK2 LK1

R10

V

V

V

SS

(1)
(1)

OSCOUT

OSCIN

OSCGND

C7 100 nF

BLACK

100 nF

kΩ

V

SS

R

G

B

BLAN

V

SS

V

DD

1

2

3

4
5

REF+

6
7
8
9

IREF

10

POL

11
12
13
14
15
16
17
18
19
20 21

MLA054 - 5

SAA5244A

40

39

38

37

36

35

34

33

32

31

30

29

28

27

25

25

24

23

22

SDA

SCL

ODD / EVEN

2.7 kΩ

V

DD

i.c.

COR

SAA5244A

Y

2.7 kΩ

V

DD

(1) Value dependent on application.

Fig.8 Application diagram.

March 1992 16

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

SAA5244A page memory organization

The organization of the page memory is shown in Fig.9. The device provides an additional row as compared with first
generation decoders; this brings the display format up to 40 characters by 25 rows. Rows 0 to 23 form the teletext page;
row 24 is available for software generated status messages and FLOF/FASTEXT prompt information.

fixed character

written by IVT hardware

7 characters

for status

71

alphanumerics white for normal
alphanumerics green when looking
for display page

24 characters from page header
rolling when display page looked for

MAIN PAGE DISPLAY AREA

8 characters

always rolling

(time)

824

ROW

0
1
2
3
4

5

to

20

PACKET X / 22
PACKET X / 23

PACKET X / 24 STORED HERE IF R0D7 = 1

10 14

10 bytes for

received

page information

14 bytes

free for use

by microcontroller

Fig.9 Basic page memory organization.

Row 0:

Row 0 is for the page header. The first seven columns (0
to 6) are free for status messages. The eighth is an
alphanumeric white or green control character, written
automatically by SAA5244A to give a green rolling header
when a page is being looked for. The last eight characters
are for rolling time.

Row 25:

The first 10 bytes of row 25 contain control data relating to
the received page as shown in Table 1. The remaining 14
bytes are free for use by the microcomputer.

21
22
23
24
25

MBA274

ROW

PACKET X / 24 if R0D7 = 0
PACKET X / 27 / 0
PACKETS 8 / 30 / 0 to 15

MBA275 - 2

0
1
2

Fig.10 Organization of the extension memory.

March 1992 17

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

Table 1 Row 25 received control data format

D0 PU0 PT0 MU0 MT0 HU0 HT0 C7 C11 MAG0 0
D1 PU1 PT1 MU1 MT1 HU1 HT1 C8 C12 MAG1 0
D2 PU2 PT2 MU2 MT2 HU2 C5 C9 C13 MAG2 0
D3 PU3 PT3 MU3 C4 HU3 C6 C10 C14 0 0
D4 HAM.ER HAM.ER HAM.ER HAM.ER HAM.ER HAM.ER HAM.ER HAM.ER
D5 0 0 0 0 0 0 0 0 0 PBLF
D60000000000
D70000000000

Column 0 1 2 3 4 5 6 7 8 9

Where:

Page number
MAG magazine
PU page units
PT page tens
PBLF page being looked for
FOUND LOW for page has been found
HAM.ER Hamming error in corresponding byte
Page sub-code
MU minutes units
MT minutes tens
HU hours units
HT hours tens
C4-C14 transmitted control bits.

FOUND 0

March 1992 18

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

Register maps

SAA5244A mode registers R0 to R11 are shown in Table 2. R0 to R10 are WRITE only; R11 is READ/WRITE.
Register map (R3), for page requests, is shown in detail in Table 3.

Table 2 Register map

REGISTER D7 D6 D5 D4 D3 D2 D1 D0

Adv.
control

Mode 1 VCS TO

Page
request
address

Page
request
data

Display
control
(normal)

Display
control
(newsflash
/subtitle)

Display
mode

Cursor
row

Cursor
column

Cursor
data

Device
status

0 X24

POS

SCS

2 −−−−TB START

3 −−−PRD4 PRD3 PRD2 PRD1 PRD0

−−−−−−−−

5 BKGND

OUT

6 BKGND

OUT

7 STATUS

TOP

−−−−−−−−

9 SUPPL.

BLAST

10 SUPPL.

ROW 24

11 − D6 D5 D4 D3 D2 D1 D0

11B

625/525
SYNC

FREE
RUN PLL

− ACQ

BKGNDINCOR

BKGNDINCOR

CURSORONREVEALONBOTTOM

CLEAR
MEM.

SUPPL.
ROW 0

ROM
VER R4

AUTO
ODD/
EVEN

ON/OFF

OUT

OUT

A0 R4 R3 R2 R1 R0

C5 C4 C3 C2 C1 C0

ROM
VER R3

DISABLE
HDR
ROLL

− DEW/

COR
IN

COR
IN

HALF

ROM
VER R2

− DISABLE
ODD/
EVEN

TCS

FULL
FIELD

TEXT
OUT

TEXT
OUT

DOUBLE
HEIGHT

ROM
VER R1

ON

COLUMN
SC2

TEXT
IN

TEXT
IN

BOX
24

ROM
VER R0

− R11/R11B
SELECT

T1 T0

START
COLUMN
SC1

PON
OUT

PON
OUT

BOX
1-23

TEXT
SIGNAL
QUALITY

START
COLUMN
SC0

PON
IN

PON
IN

BOX
0

VCS
SIGNAL
QUALITY

Notes to Table 2

1. ‘− ‘ indicates these bits are inactive and must be written to logic 0 for future compatibility.

2. All bits in registers R0 to R10 are cleared to logic 0 on power-up except bits D0 to D1 of registers R1, R5 and R6
which are set to logic 1.

3. All memory is cleared to ‘space’ (00100000) on power-up, except row 0 column 7 chapter 0, which is ‘alpha’ white
(00000111) as the acquisition circuit is enabled but the page is on hold.

4. TB must be set to logic 0 for normal operation.

5. The I

March 1992 19

2

C slave address is 0010001

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

REGISTER DESCRIPTION

R0 ADVANCED CONTROL - auto increments to Register 1

R11/R11B
SELECT

DISABLE
ODD/

EVEN

DISABLE HDR
ROLL

AUTO ODD/EVEN When set forces ODD/EVEN low if any TV picture displayed, if DISABLE ODD/EVEN = 0
FREE RUN PLL Will force the PLL to free run in all conditions
X24 POS Automatic display of FASTEXT prompt row when logic 1

R1 MODE - auto increments to Register 2

T0, T1 Interlace/non-interlace 312/313 line control (see Table 4)
TCS ON Text composite sync or direct sync select
DEW/FULL FIELD Field-flyback or full channel mode
ACQ

ON/OFF Acquisition circuits turned off when logic 1

VCS TO SCS When logic 1 enables display of messages with 60 Hz input signal

Selects reading of R11 or R11B

Forces ODD/EVEN output LOW when logic 1

Disables green rolling header and time

R2 PAGE REQUEST ADDRESS - auto increments to Register 3

COL SC0 - SC2 Point to start column for page request data (see Table 3)
TB Must be logic 0 for normal operation

R3 PAGE REQUEST DATA - does not auto increment (see Table 3)

R5 NORMAL DISPLAY CONTROL - auto increments to Register 6
R6 NEWSFLASH/SUBTITLE DISPLAY CONTROL - auto increments to Register 7

PON Picture on
TEXT Text on
COR Contrast reduction on
BKGND Background colour on
These functions have IN and OUT referring to inside and outside the boxing function respectively.

R7 DISPLAY MODE - does not auto increment

BOX ON 0 Boxing function allowed on Row 0
BOX ON 1-23 Boxing function allowed on Row 1-23
BOX ON 24 Boxing function allowed on Row 24
DOUBLE HEIGHT To display double height text
BOTTOM HALF To select bottom half of page when DOUBLE HEIGHT = 1
REVEAL ON To reveal concealed text
CURSOR ON To display cursor
STATUS TOP Row 25 displayed above or below the main text

March 1992 20

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

R9 CURSOR ROW - auto increments to Register 10

R0 to R4 Active row for data written to or read from memory via the I
A0 Selects display memory page (when = 0) or extension packet memory (when = 1)
CLEAR MEM. When set to 1, clears the display memory.

This bit is automatically reset

SUPPL. BLAST When set to 1, column 4b and 5b (of Table 6) are mapped into 4 and 5 respectively, replacing

blast-through alphanumerics in graphics mode

R10 CURSOR COLUMN - auto increments to Register 11 or 11B

C0 to C5 Active column for data written to or read from memory via the I
SUPPL. ROW 0 When set to 1, column 4b and 5b (of Table 6) are mapped into columns 6 and 7 respectively,

just for row 0 columns 0 to 7

SUPPL. ROW 24 When set to 1, column 4b and 5b (of Table 6) are mapped into columns 6 and 7 respectively

just for row 24

R11 CURSOR DATA - does not auto increment

2

D0 to D6 Data read from/written to memory via I

This location automatically increments each time R11 is accessed

R11B DEVICE STATUS - does not auto increment

VCS SIGNAL
QUALITY

TEXT SIGNAL
QUALITY

ROM VER R0 to
R4

625/525 SYNC If the input video is a 525 line signal when = 1

Indicates that the video signal quality is good and PLL is phase locked to input video when = 1

If a good teletext signal is being received when = 1

Indicated language/ROM variant. For Western European = 01000

C, at location pointed to by R9 and R10.

2

C-bus

2

C-bus

March 1992 21

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

Table 3 Register map for page requests (R3)

START

COLUMN

0 Do care

Magazine

1 Do care

Page tens PT3 PT2 PT1 PT0

2 Do care

Page units PU3 PU2 PU1 PU0

3 Do care

Hours tens X X HT1 HT0

4 Do care

Hours units HU3 HU2 HU1 HU0

5 Do care

Minutes tens X MT2 MT1 MT0

6 Do care

Minutes units MU3 MU2 MU1 MU0

PRD4 PRD3 PRD2 PRD1 PRD0

SAA5244A

HOLD MAG2 MAG1 MAG0

Notes to Table 3

1. Abbreviations are as for Table 1 except for DO CARE bits.

2. When the DO CARE bit is set to logic 1 this means the corresponding digit is to be taken into account for page
requests. If the DO CARE bit is set to logic 0 the digit is ignored. This allows, for example, ‘normal’ or ‘timed page’
selection.

HOLD is set LOW, the page is held and not updated.

3. If

4. Columns auto-increment on successive I2C-bus transmission bytes.

Table 4 Interlace/non-interlace 312/313 line control (T0 and T1)

T1 T0 RESULT

0 0 interlaced 312.5/312.5 lines
0 1 non-interlaced 312/313 lines (note 1)
1 0 non-interlaced 312/312 lines (note 1)
1 1 scan-locked

Note to Table 4

1. Reverts to interlaced mode if a newsflash or subtitle is being displayed.

March 1992 22

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

Table 5 Crystal characteristics

SYMBOL PARAMETER MIN. TYP. MAX. UNIT

Crystal (27 MHz, 3rd overtone)

C1 series capacitance − 1.7 − pF
C0 parallel capacitance − 5.2 − pF
C

L

Rr resonant resistance −− 50 Ω
R1 series resistance − 20 −Ω
Xa ageing −− ±510
Xj adjustment tolerance −− ±25 10
Xd drift −− ±25 10

handbook, full pagewidth

load capacitance − 20 − pF

1

SAA5244A

−6

/yr

−6

−6

3.3 kΩ

1 nF

4.7 µH

27 MHz

10 p

Fig.11 Crystal oscillator application diagram.

CLOCK SYSTEMS
Crystal oscillator

The crystal is a conventional 2-pin design operating at
27 MHz. It is capable of oscillating with both fundamental
and third overtone mode crystals. External components
should be used to suppress the fundamental output of
the third overtone, as shown in Fig.11. The crystal
characteristics are given in Table 5.

2

CRYSTAL

100 nF15 p

3

4

OSCILLATOR

MLA036 - 5

March 1992 23

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

Character sets

The WST specification allows the selection of national
character sets via the page header transmission bits, C12
to C14. The basic 96 character sets differ only in 13

handbook, full pagewidth

alphanumerics and

graphics 'space'

character

0000010

alphanumerics

character

1011010

SAA5244A

national option characters as indicated in Table 8 with
reference to their table position in the basic character
matrix illustrated in Table 7. The SAA5244A automatically
decodes transmission bits C12 to C14. Table 6 illustrates
the character matrices.

MLA663

alphanumerics or

blast-through

alphanumerics

character

0001001

alphanumerics

character

1111111

contiguous

graphics character

0110111

separated

graphics character

0110111

graphics character

background

= =

Fig.12 Character format.

separated

1111111

colour

contiguous

graphics character

1111111

display

colour

March 1992 24

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

Table 6 SAA5244P/A character data input decoding

b

B

I
T
S

b4b3b2b

0 0 0 0

0 0 0 1

0 0 1 0

0 0 1 1

0 1 0 0

0 1 0 1

0 1 1 0

0 1 1 1

1 0 0 0

7

b
b

0

6
5

1

r
o
w

column

0

1

2

3

4

5

6

7

8

0

0

alpha -

numerics

black

alpha -

numerics

red

alpha -

numerics

green

alpha -

numerics

yellow
alpha -

numerics

blue

alpha ­numerics
magenta

alpha ­numerics

cyan

alpha ­numerics

white

flash

0

0

0

0

1

122a3 3a 4 4b 5 5b 6 6a

graphics

black

graphics

red

graphics

green

graphics

yellow

graphics

blue

graphics
magenta

graphics

cyan

graphics

white

conceal

display

0

0

1

1

0

0

0

1

1

1

1

SAA5244A

1

0

1

0

0

1

1

1

1

1

0

1

7a

7

AV AILABLE AS

NATIONAL OPTIONS

ONLY

1 0 0 1

1 0 1 0

1 0 1 1

1 1 0 0

1 1 0 1

1 1 1 0

1 1 1 1

9

end box

10

11

start box

normal

12

13

14

15

hight

double

height

SO

SI

graphics

separated

graphics

ESC

black

back -

ground

new

back -

ground

hold

graphics

release

graphics

MBA266 - 1

contiguous

steady

ook, full pagewidth

Notes to Table 6 - For character version number (01000) see Register 11B

1. * These control characters are reserved for compatibility with other data codes.

2. ** These control characters are presumed before each row begins.

3. + Columns 4b and 5b can only be accessed when supplementary character bits are set (see Registers 9 and 10).

4. Control characters shown in columns 0 and 1 are normally displayed as spaces.

5. Characters may be referred to by column and row, For example 2/5 refers to %.

March 1992 25

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

6. Black represents displayed colour. White represents background.

7. Character rectangle shown as follows:

8. The SAA5244A national option characters are illustrated in Table 8.

9. Characters 4b/11, 4b/12, 5b/10, 5b/11 and 5b/12 are special characters for combining with character 4b/10.

10. National option characters will be developed according to the setting of control bits C12 to C14. These will be mapped
into the basic code table into positions shown in Table 8.

11. Columns 4b and 5b are mapped into 4 and 5 respectively (replacing blast-through alphanumerics in the graphics
mode) when enabled by R9 bit D7 set to 1.

12. Columns 4b and 5b are mapped into columns 6 and 7 respectively when enabled by R10 bit D6 (row 0 columns 0
to 7) and R10 bit D7 (row 24) set to 1.

13. Columns 2a, 3a, 6a and 7a are displayed in graphics mode.

March 1992 26

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March 1992 27

Table 7 SAA5244A Basic character matrix

(IVT1.1)

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

2/0 2/8 3/0 3/8 4/0 4/8 5/0 5/8 7/86/8 7/0

NC

2/1

2/2 2/10 3/2 3/10 4/2 4/10 5/2 5/10 6/2 6/10 7/2 7/10

2/3

NC

2/4

NC

2/5 2/13 3/5 3/13 4/5 4/13 5/5 6/5 6/13 7/5

2/6 2/14 3/6 3/14 4/6 4/14 5/6 6/6 7/6

2/9 3/1 3/9 4/1 4/9 5/1 5/9 6/1 6/9 7/1 7/9

2/11 3/3 3/11 4/3 4/11 5/3 6/3 6/11 7/3

2/12 3/4 3/12 4/4 4/12 5/4 6/4 6/12 7/4

5/11

NC

5/12

NC

5/13

NC

5/14

6/0

NC

7/11

7/12

7/13

7/14

NC

NC

NC

NC

2/7 2/15 3/7 3/15 4/7 4/15 5/7 6/7 6/15 7/7 7/15

Where: NC = national option character position.

andbook, full pagewidth

5/15

NC

NC

SAA5244A

MLA630

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

Table 8 SAA5244A national option character set

dbook, full pagewidth

LANGUAGE

C12 C13 C14

ENGLISH

GERMAN

SWEDISH

ITALIAN

FRENCH

(1) PHCB are the Page Header Control Bits. Other combinations default to English.

(1)

PHCB

000

001

010

011

100

2 / 3 2 / 4 4 / 0 5 / 11 5 / 12 5 / 13 5 / 14 5 / 15 6 / 0 7 / 11 7 / 12 7 / 13 7 / 14

SAA5244A

CHARACTER POSITION (COLUMN / ROW)

MLA664

March 1992 28

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

PACKAGE OUTLINES

DIP40: plastic dual in-line package; 40 leads (600 mil)

D

seating plane

L

Z

40

e

b

SAA5244A

SOT129-1

M

E

A

2

A

A

1

w M

b

1

21

c

(e )

1

M

H

pin 1 index

1

0 5 10 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

A

A

A

UNIT

inches

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

max.

mm

1 2

min.

max.

b

1.70

1.14

0.067

0.045

b

0.53

0.38

0.021

0.015

cD E e M

1

0.36

0.23

0.014

0.009

52.50

51.50

2.067

2.028

14.1

13.7

0.56

0.54

E

20

(1)(1)

e

L

1

3.60

3.05

0.14

0.12

M

15.80

15.24

0.62

0.60

E

17.42

15.90

0.69

0.63

H

w

0.2542.54 15.24

0.010.10 0.60

max.

2.254.7 0.51 4.0

0.089 0.19 0.020 0.16

(1)

Z

OUTLINE
VERSION

SOT129-1

IEC JEDEC EIAJ

051G08 MO-015AJ

REFERENCES

March 1992 29

EUROPEAN

PROJECTION

ISSUE DATE

92-11-17
95-01-14

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

QFP44: plastic quad flat package; 44 leads (lead length 2.35 mm); body 14 x 14 x 2.2 mm

c

y

X

33 23

34

Z

22

E

A

SAA5244A

SOT205-1

e

w M

b

p

v M

scale

eH

H

19.2

1

18.2

e

pin 1 index

2.3

2.1

b

0.25

12

11

Z

w M

p

D

H

D

0.50

0.35

D

B

0 5 10 mm

(1)

(1) (1)(1)

D

0.25

0.14

14.1

13.9

14.1

13.9

44

1

DIMENSIONS (mm are the original dimensions)

mm

A

max.

2.60

0.25

0.05

UNIT A1A2A3bpcE

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

v M

D

E

A

B

E

19.2

18.2

H

E

LL

2.0

1.2

A

p

A

2

A

1

detail X

Z

D

0.152.35 0.10.3

2.4

1.8

(A )

3

L

p

L

Zywv θ

E

o

2.4

7

o

1.8

0

θ

OUTLINE

VERSION

SOT205-1

IEC JEDEC EIAJ

133E01A

REFERENCES

March 1992 30

EUROPEAN

PROJECTION

ISSUE DATE

95-02-04
97-08-01

Philips Semiconductors Product specification

Integrated VIP and teletext decoder
(IVT1.1)

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

DIP

SOLDERING BY DIPPING OR BY WA VE
The maximum permissible temperature of the solder is

260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

R

EPAIRING SOLDERED JOINTS

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.

QFP

REFLOW SOLDERING
Reflow soldering techniques are suitable for all QFP

packages.
The choice of heating method may be influenced by larger

plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our

Reference Handbook”

(order code 9398 652 90011).

). If the

stg max

“Quality

(order code 9397 750 00192).

SAA5244A

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary from
50 to 300 seconds depending on heating method. Typical
reflow temperatures range from 215 to 250 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheat for 45 minutes at 45 °C.

WAVE SOLDERING
Wave soldering is not recommended for QFP packages.

This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.

If wave soldering cannot be avoided, the following
conditions must be observed:

• A double-wave (a turbulent wave with high upward

pressure followed by a smooth laminar wave)
soldering technique should be used.

• The footprint must be at an angle of 45° to the board

direction and must incorporate solder thieves
downstream and at the side corners.

Even with these conditions, do not consider wave
soldering the following packages: QFP52 (SOT379-1),
QFP100 (SOT317-1), QFP100 (SOT317-2),
QFP100 (SOT382-1) or QFP160 (SOT322-1).

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured. Maximum permissible solder
temperature is 260 °C, and maximum duration of package
immersion in solder is 10 seconds, if cooled to less than
150 °C within 6 seconds. Typical dwell time is 4 seconds
at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

R

EPAIRING SOLDERED JOINTS

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

March 1992 31

Philips Semiconductors Product specification

Integrated VIP and teletext decoder

SAA5244A

(IVT1.1)

DEFINITIONS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

PURCHASE OF PHILIPS I

Purchase of Philips I
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.

2

C COMPONENTS

2

C components conveys a license under the Philips’ I2C patent to use the

March 1992 32