Philips Semiconductors
Preliminary specification
Economy teletext and TV microcontrollers
CONTENTS
1
1.1
1.2
1.3
1.4
1.5
1.6
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.3
7.4
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
8.16
9
9.1
9.2
9.3
9.4
9.5
9.6
FEATURES
General
Microcontroller
Teletext acquisition
Teletext Display
Additional features of SAA529xA devices
Additional features of SAA549x devices
GENERAL DESCRIPTION
ORDERING INFORMATION
QUICK REFERENCE DATA
BLOCK DIAGRAM
PINNING INFORMATION
Pinning
Pin description
FUNCTIONAL DESCRIPTION
Microcontroller
80C51 Features not supported
Additional features
Microcontroller interfacing
TELETEXT DECODER
Data slicer
Acquisition timing
Teletext acquisition
Rolling headers and time
Error checking
Memory organisation of SAA5296/7,
SAA5296/7A and SAA5496/7
Inventory page
Memory Organisation of SAA5291, SAA5291A
and SAA5491
Packet 26 processing
VPS
Wide Screen Signalling (SAA529xA and
SAA549x only)
525-line world system teletext
Fastext detection
Page clearing
Full channel operation
Independent data services (SAA5291,
SAA5291A, SAA5491 only)
THE DISPLAY
Introduction
Character matrix
East/West selection
National option characters
The twist attribute
On Screen Display symbols
2
9.7
9.8
9.9
9.10
9.11
9.12
9.13
9.14
9.15
9.16
9.17
9.18
9.19
9.20
9.21
9.22
9.23
10
10.1
10.2
10.3
10.4
10.5
10.6
11
12
13
14
15
16
17
18
18.1
18.2
18.3
19
20
21
SAA5x9x family
Language group identification
525-line operation
On Screen Display characters
Control characters
Quadruple width display (SAA549x)
Page attributes
Display modes
On Screen Display boxes
Screen colour
Redefinable Colours (SAA549x)
Cursor
Other display features
Display timing
Horizontal timing
Vertical timing
Display position
Clock generator
CHARACTER SETS
Pan-European
Russian
Greek/Turkish
Arabic/English/French
Thai
Arabic/Hebrew
LIMITING VALUES
CHARACTERISTICS
CHARACTERISTICS FOR THE I
2
C-BUS
INTERFACE
QUALITY SPECIFICATIONS
APPLICATION INFORMATION
EMC GUIDELINES
PACKAGE OUTLINES
SOLDERING
Introduction
SDIP
QFP
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
1997 Jul 07
Philips Semiconductors
Preliminary specification
Economy teletext and TV microcontrollers
1
1.1
FEATURES
General
1.4
Teletext Display
SAA5x9x family
•
525-line and 625-line display
•
12
×
10 character matrix
•
Double height, width and size On-Screen Display (OSD)
•
Definable border colour
•
Enhanced display features including meshing and
shadowing
•
260 characters in mask programmed ROM
•
Automatic FRAME output control with manual override
•
RGB push pull output to standard decoder ICs
•
Stable display via slave synchronisation to Horizontal
Sync and Vertical Sync.
1.5
Additional features of SAA529xA devices
•
Single chip microcontroller with integrated teletext
decoder
•
Single +5 V power supply
•
Single crystal oscillator for teletext decoder, display and
microcontroller
•
Teletext function can be powered-down independently
of microcontroller function for reduced power
consumption in stand-by
•
Pin compatibility throughout family.
1.2
Microcontroller
•
80C51 microcontroller core
•
16/32/64 kbyte mask programmed ROM
•
256/768/1280 bytes of microcontroller RAM
•
Eight 6-bit Pulse Width Modulator (PWM) outputs for
control of TV analog signals
•
One 14-bit PWM for Voltage Synthesis Tuner control
•
Four 8-bit Analog-to-Digital converters
•
2 high current open-drain outputs for directly driving
LED’s etc.
•
I
2
C-bus
interface
•
External ROM and RAM capability on QFP80 package
version.
1.3
Teletext acquisition
•
Wide Screen Signalling (WSS) bit decoding (line 23).
1.6
Additional features of SAA549x devices
•
Wide Screen Signalling bit decoding (line 23)
•
Quad width OSD capability
•
32 additional OSD characters in mask programmed
ROM
•
8 foreground and 8 background colours definable from a
palette of 64.
2
GENERAL DESCRIPTION
•
1 page and 10 page Teletext version
•
Acquisition of 525-line and 625-line World System
Teletext, with automatic selection
•
Acquisition and decoding of VPS data (PDC system A)
•
Page clearing in under 64
µs
(1 TV line)
•
Separate storage of extension packets
(SAA5296/7, SAA5296/7A and SAA5496/7)
•
Inventory of transmitted Teletext pages stored in the
Transmitted Page Table (TPT) and Subtitle Page Table
(SPT) (SAA5296/7, SAA5296/7A and SAA5496/7)
•
Automatic detection of FASTEXT transmission
•
Real-time packet 26 engine for processing accented
(and other) characters
•
Comprehensive Teletext language coverage
•
Video signal quality detector.
The SAA529x, SAA529xA and SAA549x family of
microcontrollers are a derivative of the Philips’
industry-standard 80C51 microcontroller and are intended
for use as the central control mechanism in a television
receiver. They provide control functions for the television
system and include an integrated teletext function.
The teletext hardware has the capability of decoding and
displaying both 525-line and 625-line World System
Teletext. The same display hardware is used both for
Teletext and On-Screen Display, which means that the
display features give greater flexibility to differentiate the
TV set.
The family offers both 1 page and 10 page Teletext
capability, in a range of ROM sizes. Increasing display
capability is offered from the SAA5290 to the SAA5497.
1997 Jul 07
3
Philips Semiconductors
Preliminary specification
Economy teletext and TV microcontrollers
3
ORDERING INFORMATION
TYPE NUMBER
(1)
NAME
SAA5290PS/nnn
SAA5291PS/nnn
SAA5291APS/nnn
SAA5296PS/nnn
SAA5296APS/nnn
SAA5491PS/nnn
SAA5496PS/nnn
SAA5291H/nnn
SAA5291AH/nnn
SAA5296H/nnn
SAA5296AH/nnn
SAA5491H/nnn
SAA5496H/nnn
SAA5297PS/nnn
SAA5297APS/nnn
SAA5497PS/nnn
SAA5297H/nnn
SAA5297AH/nnn
SAA5497H/nnn
Note
QFP80
plastic quad flat package; 80 leads (lead length
1.95 mm); body 14
×
20
×
2.8 mm
SDIP52
plastic shrink dual in-line package; 52 leads
(600 mil)
QFP80
plastic quad flat package; 80 leads (lead length
1.95 mm); body 14
×
20
×
2.8 mm
SDIP52
plastic shrink dual in-line package; 52 leads
(600 mil)
PACKAGE
DESCRIPTION
SAA5x9x family
VERSION
PROGRAM
MEMORY (ROM)
SDIP52 plastic shrink dual in-line package; 52 leads
(600 mil)
SOT247-1 16 kbytes
SOT247-1 32 kbytes
SOT318-2 32 kbytes and external
SOT247-1 64 kbytes
SOT318-2 64 kbytes or external
1. ‘nnn’ is a three-digit number uniquely referencing the microcontroller program mask and OSD mask.
4
QUICK REFERENCE DATA
SYMBOL
V
DDA
V
DDM
V
DDT
f
xtal
T
amb
I
DDM
I
DDA
I
DDT
I
DDA
I
DDT
crystal frequency
operating ambient temperature
microcontroller supply current
−
−20
−
−
−
−
−
12
−
20
−
+70
35
MHz
°C
mA
supply voltages
PARAMETER
MIN.
4.5
TYP.
5.0
MAX.
5.5
V
UNIT
SAA5290, SAA5291, SAA5291A and SAA5491
analog supply current
teletext supply current
35
40
50
65
mA
mA
SAA5296, SAA5296A, SAA5297, SAA5297A, SAA5496 and SAA5497
analog supply current
teletext supply current
35
50
50
80
mA
mA
1997 Jul 07
4
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
