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Part Number: SAA5246A
Description: The SAA5246A is a single-chip teletext decoder IC for decoding 625 line base World System Teletext tra...
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SAA5246A
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General Description
SAA5246A General Description
The SAA5246A is a single-chip teletext decoder IC for decoding 625 line base World System Teletext transmissions. The teletext decoder hardware is based on the Enhanced Computer Controlled ECCT device (SAA5243) with some additional features.
The Video Input Processor section of the device uses mixed analog and digital designs in the data slicer and clock phase-locked-loop functions. As a result the number of external components are greatly reduced and no critical or adjustable components are required.
SAA5246A Maximum Ratings
| SYMBOL | PARAMETER | MIN. | MAX. | UNIT |
| VDD VI VO IO IIOK Tamb Tstg Vstat |
supply voltage (all supplies) input voltage (any input) output voltage (any output) output current (each output) DC input or output diode current operating ambient temperature storage temperature electrostatic handling (see note 1) |
-0.3 -0.3 -0.3 - - -20 -55 -2000 |
6.5 VDD +0.5 VDD +0.5 ±10 ±20 +70 +125 +2000 |
V V V mA mA °C °C V |
Note to the Limiting values
1. Electrostatic handling is equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor with a 15 ns rise time.
SAA5246A Features
· Complete Teletext decoder in a 48-pin DIL or 64-pin QFP, integrated circuit
· Single +5 V power supply
· Both video and scan related synchronization modes are supported
· RGB interface to standard colour decoder ICs, push-pull output drive
· Digital data slicer and display clock phase-locked loop reduce peripheral components to a minimum
· Data capture performance similar to SAA5231 (VIP2)
· Option for up to seven national languages
· Optional storage of packet 24 in the display memory
· 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 override
· Control of display PLL free-run and rolling header via I2C-bus
· VCS to SCS mode for stable 525 line status display.
· Single +5 V power supply
· Both video and scan related synchronization modes are supported
· RGB interface to standard colour decoder ICs, push-pull output drive
· Digital data slicer and display clock phase-locked loop reduce peripheral components to a minimum
· Data capture performance similar to SAA5231 (VIP2)
· Option for up to seven national languages
· Optional storage of packet 24 in the display memory
· 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 override
· Control of display PLL free-run and rolling header via I2C-bus
· VCS to SCS mode for stable 525 line status display.
SAA5246A Connection Diagram
SAA5246A
PDF/DataSheet Download
- Datasheet: SAA5246A
- File Size: 645653 KB
- Manufacturer: PHILIPS [Philips Semiconductors]
- Click here to Download
- ·SAA-1
- SII [Seiko Instruments Inc]
- Single-Mode FC ADAPTOR supplied
- 68126 KB
- ·SAA-101100
- SII [Seiko Instruments Inc]
- Single-Mode FC ADAPTOR supplied
- 68126 KB
- ·SAA-101200
- SII [Seiko Instruments Inc]
- Single-Mode FC ADAPTOR supplied
- 68126 KB
- ·SAA-102100
- SII [Seiko Instruments Inc]
- Single-Mode FC ADAPTOR supplied
- 68126 KB
- ·SAA-102200
- SII [Seiko Instruments Inc]
- Single-Mode FC ADAPTOR supplied
- 68126 KB
- ·SAA1027
- PHILIPS [Philips Semiconductors]
- STEPPER MOTOR DRIVE CIRCUIT
- 220011 KB
- ·SAA1027N
- MOTOR CONTROLLER,DIP,16PIN
- 220011 KB
- ·SAA1029
- ETC [ETC]
- UNIVERSAL INDUSTRIAL LOGIC AND INTERFACE CIRCUIT
- 164861 KB
SAA5246A Relative Products
SAA5244A
The Integrated VIP and Teletext (IVT1.1) SAA5244Ais 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 devic...
SAA5233
The SAA5233 is a dual standard Program Delivery Control (PDC) decoder, allowing the reception and decoding of both VPS data (EBU PDC System A) and Teletext packet 8/30/2 data (EBU PDC System B). SAA5233 is intended for use in European video recorders which a...
SAA5231
The SAA5231 is a bipolar integrated circuit intended as a successor to the SAA5030. It extracts Teletext Data from the video signal, regenerates Teletext Clock and synchronizes the text display to the television syncs. The SAA5231 is intended to work in conj...
SAA5191
The SAA5191 is a bipolar integrated circuit that extracts teletext data from the video signal (CVBS), regenerates the teletext clock (TTC) and synchronizes the text display to the television signals (VCS). SAA5191 operates in conjunction with the Digital Vid...
SAA4998H
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