Introduction
The VSP 94x2A (PRIMUS) is a new component of the Micronas MEGAVISION® IC set in a CMOS embedded DRAM technology. The VSP 94x2A comprises all main functions of a digital featurebox in one monolithic IC. The number of features is limited in favor of a lowcost solution, but no trade-off has been made concerning picture quality.

FEATUREs
– Integrated video matrix switch
    • Up to seven CVBS inputs, up to two Y/C inputs,
    • Three CVBS outputs (Y/C inputs signals are combined to CVBS output format)
    • 9 bit amplitude resolution for CVBS, Y/C A/D converter
    • AGC (Automatic Gain Control)
– Multi-standard color decoder
    • PAL/NTSC/SECAM including all substandards
    • Automatic recognition of chroma standard
    • Only one crystal necessary for all standards
– RGB-FBL or YUV-H-V input
    • 8 bit amplitude resolution for RGB or YUV
    • 8 bit amplitude resolution for FBL or H
– ITU656 support (version dependent, refer to next chapter)
    • ITU656 input/output
    • DS656 output (double-scan ‘656-like’ output)
– Letterbox detection
– Noise reduction
    • Temporal noise reduction
    • Field-based temporal noise reduction for luminance and chrominance
    • Different motion detectors for luminance and chrominance or identical
    • Flexible programming of the temporal noise reduction parameters
    • Automatic measurement of the noise level
– Horizontal scaling of the 1fH signal
    • Split-screen possible with additional PiP or Text processor
– Flexible digital horizontal scaling of the 2fH signal
    • Scaling factors: 3, ..., 0.75 including 16:9 compatibility
    • 5 zone panorama generator
– Embedded memory
    • On-chip memory controller
    • Embedded DRAM core for field memory
    • SRAM for PAL/SECAM delay line
– Data format 4:2:2
– Flexible clock and synchronization concept
    • Horizontal line-locked or free-running mode
    • Vertical locked or free-running mode
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