SAA5x9x family

1.1 General

` 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.
` I2C-bus interface
` External ROM and RAM capability on QFP80 package version.

1.3 Teletext acquisition

` 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 ms (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.

1.4 Teletext Display

` 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

` 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.