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PDF KS7333 Data sheet ( Hoja de datos )
| Número de pieza | KS7333 | |
| Descripción | Digital Image Stabilization and Digital Zoom Processor | |
| Fabricantes | Samsung semiconductor | |
| Logotipo |  |
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DATA SHEET
KS7333
PRODUCT INFORMATION
PRODUCT SUMMARY
KS7333 is a product used in video camera systems, such as camcorders and surveillance camera systems that
use charge coupled devices (CCD). It takes the CCD input as digital data and performs 3-D interpolation, image
scaling, and minimization of resolution potential using horizontal/vertical line interpolation on the data. In
addition, it detects the amount of movement caused by shaking while held by the hands through 1-D projection
pattern matching and corrects for it. It also has the 1/16 picture-in-picture function as well as the digital effect
function that uses field memory.
FEATURE
• NTSC/PAL, normal/hi-band, DVC correspondence
• 10 bit S1S2 format A/D signal input (new)
• 10 bit S1S2 signal output for DCP I/F
• Sub-pixel resolution animation movement
detection and compensation (new)
• Adaptable IIR filtering for shaking/panning
compensation
• 1/16 picture in picture function (new)
• 256 step linear interpolation
• High resolution digital zoom using TIIR
(temporal IIR) filter (new)
• Uses 1 field memory (16M SDRAM) (new)
• DPCM compression and recovery for effective
memory use (80%) (new)
• Movement adaptable field noise reducer (new)
• Any point quick zoom (new)
• Any area motion detection
• Line graphic (free line draw) using motion (new)
• Digital effect strobe (external micom control),
afterimage, still image, mirror)
• Serial micom interface
• Dual shutter source mix and individual gamma
compensation (histogram output)
• Low shutter speed control correspondence
• 64 CCD white defect detection and compensation
function
• Digital clamp function
• AE/AF operation function
• OSD visual interpretation tool etc.
(motion vector, window mark, etc)
PROCESSING AND PACKAGE
Processing: 0.35um, TLM, 3.3V CMOS prodessing (CSP7L)
APPLICATIONS
• Camcorder systems
• Surveillance cameras
• PC cameras
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1 page  
DATA SHEET
Pin No.
70
71
72
73
74
75
76
77
78
79
80
Pin Name
SI1
SI2
SI3
SI4
VSS
SI5
SI6
SI7
VDD
SI8
SI9
Table 1. Pin Description (Continued)
I/O Function
I S1S2 data input 1 from ADC
I S1S2 data input 2 from ADC
I S1S2 data input 3 from ADC
I S1S2 data input 4 from ADC
P Ground
I S1S2 data input 5 from ADC
I S1S2 data input 6 from ADC
I S1S2 data input 7 from ADC
P Power
I S1S2 data input 8 from ADC
I S1S2 data input 9 from ADC
KS7333
5
5 Page 
DATA SHEET
KS7333
DIGITAL ZOOM BLOCK
This block receives the AD-converted S1S2 format image as its input, puts it through DPCM compression, and
uses the external SDRAM to store the compressed image signal in real time, 1 field at a time. It then restores the
stored image signal and magnifies it to maximum 255 times the original, using the zoom coefficient controlled by
MICOM. The magnified image is divided into Y/C using the LPF and goes through the 256-step linear
interpolation.
The aperture feature precedes the linear interpolation, and the interpolated image signal is output through the
temporal IIR filter. At the same time, the output is stored in 2 fields of the SDRAM.
• 256-step linear interpolation
• Y/C separation through LPF
• Aperture feature for Y signals
• 1 field memory (16M SDRAM) used
• DPCM compression/restoration for efficient memory use
• Color edge suppression (5 tabs)
DCPM compression/restoration for efficient memory use
It's not matched between SDRAM data width (16 bits) for store and inputted image signal data width-10 bit.
Therefore, in case of storing inputted image, itself (10 bit) data, it's inefficient. To solve that, it compresses 20%
from 10 bit to 8 bit with that inputted image data width by adopting DPCM compression technology.
Y/C separation through LPF
Restored DPCM data which is S1 S2 format needs to separate Y/C for image processing, at this time, Y signal is
separated by LPF and C signal is separated by HPF.
Aperture feature for Y signals
This system is 4 line processing to vertical direction. Aperture to vertical direction decides to considering by
impulse response with using the spline method (refer the micom mode operation part). Horizontal aperture is
obtained by adjusting the gain with edge information by adopting 5 tabs.
YHAFS[1:0]
Input
"00"
"01"
"10"
"11"
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet KS7333.PDF ] | |
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