SAA7113 Datasheet

Video ICs


The SAA7113 is 9-bit video input processor is a combination of atwo-channel analog preprocessing circuit including sourceselection, anti-aliasing filter and ADC, an automatic clampand gain control, a Clock Generation Circuit (CGC), adigital multi-standard decoder (PAL BGHI, PAL M, PAL N,combination PAL N, NTSC M, NTSC-Japan, NTSC N andSECAM), a brightness, contrast and saturation controlcircuit, a multi-standard VBI data slicer and a 27 MHzVBI data bypass; see Fig.1. SAA7113 Features • Four analog inputs, internal analog source selectors,e.g. 4× CVBS or 2 × Y/C or (1 × Y/C and 2 × 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 SAA7113 Applications • Notebook (low power consumption)• PCMCIA card application• AGP based graphics cards• Image processing• Video phone applications• Intercast and PC teletext applications• Security applications.


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