D-Boss LT-40FLP, Руководство по обслуживанию

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SERVICE MANUAL
PAGE:
41
CIRCUIT DESCRIPTIONS
4. VIDEO PROCESSOR SECTION.
Device: VSP 9417B
Features: Different application modes
Data acquisition connectivity
Multi-standard color decoder with 4H comb filter
Processing of two input channels independently
Second Multi-standard color decoder for slave channel
Scan-rate-conversion (version dependent)
Three D/A converters
Digital output
1) Description
50/60HZ derivatives are also avail-able. The device comprises digital multistandard color
decode for master and slave channel, a RGB interface with fast-blank capability (SCART),
scaling units including panorama, embedded DRAM for upcoversion high performance frame
based up conversion, High-performance frame based up conversion algorithms, picture
improvements, temporal noise reduction as well as A/D and D/A converter adaptive 4H comb
filter Y/C separator with adjustable vertical peaking
The either come form a CVBS, Y/C, RGB or YUV input or from a CCIR 656 compatible digital
input signal. For RGB and YUV, interlace and progressive signals up to XGA can be connected.
High resolution PC signals (SVGA, XGA etc.) may only be reproduced with limited picture
quality
Multi-standard color decoder PAL/NTSC/SECAM including all substandards.
Integrated high-quality A/D converters and associated clamp Multi-standard sync processing
Linear horizontal scaling as well as non-linear horizontal scaling
Peaking, contrast, brightness, color saturation and tint High-quality soft mixer controlled by Fast
Blank Control interface for external field memory I2C-Bus Interface
Fabricated in an advanced CMOS process, the VSP9417B is provided in a space-saving
QFP80 surface-mount plastic package.