SAA7113H

General description

The 9-bit video input processor is a combination of a two-channel analog preprocessing circuit including source selection, anti-aliasing filter and ADC, an automatic clamp and gain control, a Clock Generation Circuit (CGC), a digital multistandard decoder (PAL BGHI, PAL M, PAL N, combination PAL N, NTSC M, NTSC-Japan, NTSC N and SECAM), a brightness, contrast and saturation control circuit, a multistandard VBI data slicer and a 27 MHz VBI data bypass.

The pure 3.3 V CMOS circuit SAA7113H, analog front-end and digital video decoder, is a highly integrated circuit for desktop video applications. The decoder is based on the principle of line-locked clock decoding and is able to decode the color of PAL, SECAM and NTSC signals into ITU-R BT 601 compatible color component values. The SAA7113H accepts as analog inputs CVBS or S-video (Y/C) from TV or VTR sources. The circuit is I²C-bus controlled.

The integrated high performance multistandard data slicer supports several VBI data standards:

• Teletext 625 lines: WST (World Standard Teletext) and CCST (Chinese teletext)
• Teletext 525 lines: US-WST, NABTS (North-American Broadcast Text System) and MOJI (Japanese teletext)
• Closed caption: Europe and US (line 21)
• Wide Screen Signalling (WSS)
• Video Programming Signal (VPS)
• Time codes (VITC EBU/SMPTE)
• High-speed VBI data bypass for Intercast application.

Features

• Four analog inputs, internal analog source selectors, e.g. 4 x CVBS or 2 x Y/C or (1 x Y/C and 2 x CVBS)
• Two analog preprocessing channels in differential CMOS style for best S/N-performance
• Fully programmable static gain or automatic gain control for the selected CVBS or Y/C channel
• Switchable white peak control
• Two built-in analog anti-aliasing filters
• Two 9-bit video CMOS Analog-to-Digital Converters (ADCs), digitized CVBS or Y/C-signals are available on the VPO-port via I²C-bus control
• On-chip clock generator
• Line-locked system clock frequencies
• Digital PLL for horizontal sync processing and clock generation, horizontal and vertical sync detection
• Requires only one crystal (24.576 MHz) for all standards
• Automatic detection of 50 Hz and 60 Hz field frequency and automatic switching between PAL and NTSC standards
• Luminance and chrominance signal processing for PAL BGHI, PAL N, combination PAL N, PAL M, NTSC M, NTSC N, NTSC 4.43, NTSC-Japan and SECAM
• User programmable luminance peaking or aperture correction
• Cross-color reduction for NTSC by chrominance comb filtering
• PAL delay line for correcting PAL phase errors
• Brightness Contrast Saturation (BCS) and hue control on-chip
• Real-time status information output (RTCO)
• Two multifunctional real-time output pins controlled by I²C-bus
• Multistandard VBI data slicer decoding World Standard Teletext (WST), North-American Broadcast Text System (NABTS), closed caption, Wide Screen Signalling (WSS), Video Programming System (VPS), Vertical Interval Time Code (VITC) variants (EBU/SMPTE), etc.
• Standard ITU-R BT 656 YUV 4 : 2 : 2 format (8-bit) on VPO output bus
• Enhanced ITU-R BT 656 output format on VPO output bus containing:
• Active video
• Raw CVBS data for Intercast applications (27 MHz data rate)
• Decoded VBI data
• Boundary scan test circuit complies with the "IEEE Std. 1149.b1 - 1994" (ID-Code = 1 7113 02B)
• I²C-bus controlled (full read-back ability by an external controller and bit rate up to 400 kbit/s)
• Low power (< 0.5 W), low voltage (3.3 V), small package (QFP44)
• Power saving mode by chip enable input
• Detection of copy protected input signals according to the Macrovision standard; can be used to prevent unauthorized recording of pay-TV or video tape signals.

Products/packages

Products in the above table are all in production. Some variants are discontinued; click here for information on these variants.

Pricing/ordering/availability

Applications

• Notebook (low power consumption)
• PCMCIA card application
• AGP based graphics cards
• Image processing
• Video phone applications
• Intercast and PC teletext applications
• Security applications.

Related applications
LCD display - discretes focus

Technical documents

Application Notes

AN00084_1; PCI - DVB tuner boards and Windows drivers (14-Dec-00)

Support Documents

75015904; Digital Video Decoders for general applications (2007-03-03)

75007442; Liquid Crystal Displays designer's guide (2001-07-01)

triref_pci_development_board; TriREF PCI Development Board (2003-12-26)

75011987; Your Digital Gateway to the Analog World - Decoder (2001-11-01)

Parametrics/similar products

Similar products

SAA7113H links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.

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