參數(shù)資料
型號： 935211970551
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： PLASTIC, SOT-393, QFP-64
文件頁數(shù)： 62/67頁
文件大小： 443K
代理商： 935211970551
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SAA7111
Information as of 2000-08-24
SAA7111; Video Input Processor (VIP)
The Video Input Processor (VIP) 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 multi-standard decoder (PAL BGHI, PAL
M, PAL N, NTSC M and NTSC N), a brightness/contrast/saturation control circuit and a colour space matrix (see Fig.1). The CMOS circuit
SAA7111, 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 colour of PAL and NTSC signals into CCIR-601 compatible colour
component values. The SAA7111 accepts as analog inputs CVBS or S-video (Y/C) from TV or VTR sources. The circuit is I
2PC-bus
controlled.
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Four analog inputsinternal analog source selectorse.g. 4 CVBS or 2 Y/C or (1 Y/C and 2 CVBS)
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Two analog preprocessing channels
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Fully programmable static gain for the main channels or automatic gain control for the selected CVBS or Y/C channel
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Switchable white peak control
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Two built-in analog anti-aliasing filters
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Two 8-bit video CMOS analog-to-digital converters (ADCs)
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On-chip clock generator
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Line-locked system clock frequencies
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Digital PLL for H-sync processing and clock generation
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Requires only one crystal (24.576 MHz) for all standards
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Horizontal and vertical sync detection
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Automatic detection of 50/60 Hz field frequency and automatic switching between standards PAL and NTSC
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Luminance and chrominance signal processing for PAL BGHI, PAL N, PAL M, NTSC MNTSC N and NTSC 4.43
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User programmable luminance peaking or aperture correction
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