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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