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SAA7108AE Datasheet - NXP Semiconductors.

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Part Name
SAA7108AE

Description

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208 Pages

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MFG CO.
NXP
NXP Semiconductors. NXP

General description
The SAA7108AE; SAA7109AE is a new multistandard video decoder and encoder chip, offering high quality video input and TV output processing as required by PC-99 specifications. It enables hardware manufacturers to implement versatile video functions on a significantly reduced printed-circuit board area at very competitive costs.
   
Features
Video decoder
■ Six analog inputs, internal analog source selectors, e.g. 6 × CVBS or (2 × Y/C and
    2 × CVBS) or (1 × Y/C and 4 × CVBS)
■ Two analog preprocessing channels in differential CMOS style for best S/N
    performance
■ Fully programmable static gain or Automatic Gain Control (AGC) 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 Image Port Data (IPD) port under 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 (either 24.576 MHz or 32.11 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-Japan, NTSC N, NTSC 4.43 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
■ Two multifunctional real-time output pins controlled by the I2C-bus
■ Multistandard VBI data slicer decoding World Standard Teletext (WST),
    North-American Broadcast Text System (NABTS), Closed Caption (CC), Wide Screen
    Signalling (WSS), Video Programming System (VPS), Vertical Interval Time Code
    (VITC) variants (EBU/SMPTE) etc.
■ Standard ITU 656 Y-CB-CR 4 : 2 : 2 format (8-bit) on IPD output bus
■ Enhanced ITU 656 output format on IPD output bus containing:
    ◆ Active video
    ◆ Raw CVBS data for INTERCAST applications (27 MHz data rate)
    ◆ Decoded VBI data
■ 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
   (Continue ...)

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