SAA7146, SAA7146A, SAA7146A A Selling Leads, Datasheet
MFG:PHILIPS Package Cooled:QFP D/C:PCS/
SAA7146, SAA7146A, SAA7146A A Datasheet download
Part Number: SAA7146
MFG: PHILIPS
Package Cooled: QFP
D/C: PCS/
SAA7146, SAA7146A, SAA7146A A
- Table of contents:
Info of SAA7146
Info of SAA7146A
Info of SAA7146A A
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About SAA7146A
PDF/DataSheet Download
Datasheet: SAA7146A
File Size: 661097 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About SAA7146A
PDF/DataSheet Download
Datasheet: SAA7146A
File Size: 661097 KB
Manufacturer: PHILIPS [Philips Semiconductors]
Download : Click here to Download
About SAA-1
PDF/DataSheet Download
Datasheet: SAA-1
File Size: 68126 KB
Manufacturer: SII [Seiko Instruments Inc]
Download : Click here to Download
SAA7146A General Description
The SAA7146A, Multimedia PCI-bridge, is a highly integrated circuit for DeskTop Video (DTV) applications. The device provides a number of interface ports that enable a wide variety of video and audio ICs to be connected to the PCI-bus thus supporting a number of video applications in a PC. One example of the application capabilities is shown in Fig.49. Figure1 shows the various interface ports and the main internal function blocks.
SAA7146A Features
• Full size, full speed video delivery to and from the frame
buffer or virtual system memory enables various
processing possibilities for any external PCI device
• Full bandwidth PCI-bus master write and read (up to 132Mbytes/s)
• Virtual memory support (4Mbytes per DMA channel)
• Processing of maximum 4095active samples per line
and maximum 4095lines per frame
• Vanity picture (mirror) for video phone and video conferencing applications
• Video flip (upside down picture)
• Colour space conversion with gamma correction for different kinds of displays
• Chroma Key generation and utilization
• Pixel dithering for low resolution video output formats
• Brightness, contrast and saturation control
• Video and Vertical Blanking Interval (VBI) synchronized programming of internal registers with
Register Programming Sequencer (RPS), ability to control two asynchronous data streams simultaneously
• Memory Management Unit (MMU) supports virtual
demand paging memory management (Windows, Unix,etc.)
• Rectangular clipping of frame buffer areas minimizes
PCI-bus load
• Random shape mask clipping protects selectable areas of frame buffer
• 3*128 Dword video FIFO with overflow detection and'graceful' recovery.
buffer or virtual system memory enables various
processing possibilities for any external PCI device
• Full bandwidth PCI-bus master write and read (up to 132Mbytes/s)
• Virtual memory support (4Mbytes per DMA channel)
• Processing of maximum 4095active samples per line
and maximum 4095lines per frame
• Vanity picture (mirror) for video phone and video conferencing applications
• Video flip (upside down picture)
• Colour space conversion with gamma correction for different kinds of displays
• Chroma Key generation and utilization
• Pixel dithering for low resolution video output formats
• Brightness, contrast and saturation control
• Video and Vertical Blanking Interval (VBI) synchronized programming of internal registers with
Register Programming Sequencer (RPS), ability to control two asynchronous data streams simultaneously
• Memory Management Unit (MMU) supports virtual
demand paging memory management (Windows, Unix,etc.)
• Rectangular clipping of frame buffer areas minimizes
PCI-bus load
• Random shape mask clipping protects selectable areas of frame buffer
• 3*128 Dword video FIFO with overflow detection and'graceful' recovery.
SAA7146A Connection Diagram
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