Philips Semiconductors
Preliminary specification
TV microcontroller with full screen
On Screen Display (OSD)
CONTENTS
1
1.1
1.2
1.3
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.2.1
7.2.2
7.2.3
7.2.4
7.3
7.3.1
7.3.2
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.4
7.4.1
7.4.2
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.6
7.6.1
7.6.2
7.6.3
7.6.4
7.6.5
7.7
7.8
FEATURES
General
Microcontroller
Display
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pinning
Pin description
FUNCTIONAL DESCRIPTION
Microcontroller
80C51 features not supported
Interrupt priority
Off-chip memory
Idle and Power-down modes
UART function
Additional features
Interrupts
Bit Level I
2
C-bus Interface
Byte Level I
2
C-bus Interface
LED support
6-bit PWM DACs
14-bit PWM DAC
Software ADC
Microcontroller Interfacing
Special Function Register map
Special Function Registers bit description
The display
Introduction
Character matrix
Page attributes
East/west selection
National option characters
The twist attribute
On screen display symbols
Language group identification
525-line operation
Control characters
Display modes
On Screen Display boxes
Screen colour
7.9
7.10
7.11
7.12
7.13
7.14
7.15
8
8.1
8.2
8.3
8.4
8.5
8.6
9
10
11
12
13
14
15
16
16.1
16.2
16.3
17
18
19
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
SAA5288
CHARACTERISTICS FOR THE I
2
C-BUS
INTERFACE
QUALITY SPECIFICATIONS
APPLICATION INFORMATION
EMC GUIDELINES
PACKAGE OUTLINE
SOLDERING
Introduction
Soldering by dipping or by wave
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
1997 Jun 24
2
Philips Semiconductors
Preliminary specification
TV microcontroller with full screen
On Screen Display (OSD)
1
1.1
FEATURES
General
SAA5288
•
260 characters in mask programmed ROM
•
Display clock derived internally to reduce peripheral
components to a minimum
•
Automatic FRAME output control with manual override
•
Standby mode for display hardware
•
525-line and 625-line display
•
12
×
10 character matrix
•
Stable Display via slave synchronization to Horizontal
Sync and Vertical Sync.
2
GENERAL DESCRIPTION
•
On-chip TV control tuning
•
Hardware and software compatible with SAA5290,
SAA5291 and SAA5296
•
Single +5 V power supply
•
RGB interface to standard decoder ICs, push-pull output
drive
•
SDIP52 package
•
Single crystal oscillator for display and microcontroller.
1.2
Microcontroller
•
80C51 microcontroller core
•
16 kbyte mask programmed ROM
•
256 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 (ADCs)
•
2 high current open-drain outputs for directly driving
LED’s etc.
•
Switchable bit or byte-oriented I
2
C-bus interface.
1.3
Display
The SAA5288 is a microcontroller for use in televisions
with an OSD generator compatible with the Economy
Teletext/TV microcontroller family (SAA5290, SAA5291,
SAA5296 etc.). TV control facilities are provided by an
on-chip industry standard 80C51 microcontroller and a
1 kbyte DRAM is included for OSD memory.
Hardware and software compatibility with the Economy
Teletext/TV microcontroller family minimizes the changes
required to develop a TV control function for areas where
teletext is not broadcast.
The device cannot acquire Teletext but is based on a
Teletext device. Therefore, throughout this document
references are made to Teletext especially when
describing the Display/OSD section. The Display/OSD
section is fully compatible with a Teletext display and has
all the features associated with Teletext (i.e. double
height/width, flash, teletext boxes, graphics, etc.).
The Display section is described with reference to Teletext
to allow software compatibility with the Economy
Teletext/TV microcontroller family.
•
Single page (1024
×
8) on-board On Screen Display
(OSD) memory
•
Double size width and height capability for OSD
•
Enhanced display features including meshing,
shadowing and additional display attributes
3
QUICK REFERENCE DATA
SYMBOL
V
DD
I
DDM
I
DDA
I
DDT
f
xtal
T
amb
PARAMETER
supply voltage (all supplies)
microcontroller supply current
analogue supply current
display supply current
crystal frequency
operating ambient temperature
MIN.
4.5
−
−
−
−
−20
TYP.
5.0
15
8
15
12
−
MAX.
5.5
30
15
30
−
+70
V
UNIT
mA
mA
mA
MHz
°
C
1997 Jun 24
3
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
