GENERAL DESCRIPTION
The CMOS circuit SAA7186 scales and filters digital video data to randomly sized picture windows. YUV input data in 4:2:2 format are required (SAA7191B source).

FEATURES
• Scaling of video picture windows down to randomly sized windows
• Processes maximum 1023 pixels per line and 1023 lines per field
• Two-dimensional data processing for improved signal quality of scaled video data and for compression of video data
• 16-bit YUV input data buffer
• Interlace/non-interlace video data processing and field control
• Line memories in Y path and UV path to store two lines, each with 2 × 768 × 8 bit capacity
• Vertical sync processing by scale control
• Non-scaled mode to get full picture or to gate videotext lines
• UV input and output data binary/two’s complement
• Switchable RGB matrix and anti-gamma ROMs
• 16-word FIFO register for 32-bit output data
• Output formats: 5-bit and 8-bit RGB, 8-bit YUV or 8-bit monochrome