VSP9402.Scan rate converter and color decoder

  • Автор записи:
  • Рубрика записи:Chip for TV

Integrated video matrix switch
Up to seven CVBS inputs, up to two Y/C inputs,
Three CVBS outputs (Y/C inputs signals are com-
bined to CVBS output format)
9 bit amplitude resolution for CVBS, Y/C A/D con-
verter
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 lumi-
nance 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 compat-
ibility
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

Scan-rate-conversion
Simple interlaced modes (100/120 Hz): AABB,
AAAA, BBBB (9402A/9412A only)
No scan-rate-conversion modes (50/60 Hz): AB,
AA, BB (9432A/9442A only)
Flexible output sync controller
Flexible positioning of the output signal
Flexible programming of the output sync raster
‘Blank signal’ generation
Signal manipulations
Still field
Insertion of colored background
Windowing
Vertical chrominance shift for improved VCR pic-
ture quality
Sharpness improvement
Digital color transition improvement (DCTI)
Peaking (luminance)
Three D/A converters
9 bit amplitude resolution for Y, -(R-Y), -(B-Y) out-
put
72 MHz clock frequency
Two-fold oversampling for anti-imaging
Simplification of external analog postfiltering
1920 active pixel/per line in default configuration
I 2C-bus control (400 kHz)
Selectable I2C address
1.8 V ±5% and 3.3 V ±5% supply voltages