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STI3220CV
STI3220CV | |
|---|---|
| Manufacturer Part Number | STI3220CV |
| Description | MOTION ESTIMATION PROCESSOR |
| Manufacturer | STMicroelectronics |
| STI3220CV datasheets |
|
Availability: In stock
Quantity: 1000
International delivery:
Warranty: 60 days
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Specifications of STI3220CV | |||
|---|---|---|---|
| Case | QFP | ||
PrevNext
.
.
PIXEL RATE FROM 0 UP TO 20MHz
.
BLOCK SIZE : 8 x 4n, 16 x 4n
MAXIMUM DISPLACEMENT +7/-8 PIXELS
.
HORIZONTAL AND VERTICAL
COMPUTATION OF THE MOTION VECTOR
.
AND MINIMUM DISTORTION
RANDOM ACCESS TO THE 256 DISTOR-
.
TIONS
.
8-BIT UNSIGNED INPUT PIXEL
4-BIT 2’S COMPLEMENT HORIZONTAL DIS-
.
PLACEMENT
4-BIT 2’S COMPLEMENT VERTICAL DIS-
.
PLACEMENT
.
16-BIT UNSIGNED DISTORTION VALUES
.
CLOCK FREQUENCY = INPUT RATE
.
FULLY TTL AND CMOS COMPATIBLE
.
CMOS TECHNOLOGY
.
SINGLE + 5 VOLT POWER SUPPLY
MAXIMUM POWER DISSIPATION :
2.4 WATTS AT 20MHz CLOCK RATE
DESCRIPTION
The Real Time Motion Estimation Chip is a dedi-
cated circuit for motion estimation at video rates.
The chip is optimized to compute the displacement
vector of 8 x 4n or 16 x 4n blocks in a search
window (SW) definedby a maximum horizontal and
vertical displacement of +7/-8 pixels corresponding
to 256 different vectors.
The chip computes 256 distortions for each block
according to the MAE criterion.
Table 1
Picture format
Pixel Rate
CIF 10Hz
1.01MHz
CIF 30Hz
3.04MHz
TV 25Hz
13.5MHz
January 1994
MOTION ESTIMATION PROCESSOR
ORDER CODE : STI3220CV
The minimum distortion and the corresponding
vector are calculated on chip. A random access to
all distortions allows to implement more elaborate
algorithms at the system level.
Displacement vectors of +15/-16 pixels are accom-
modated with a single chip for lower rates (time
multiplexed) or with several chips for higher rates
(spatial multiplexed).
Table 1 shows different application examples for
the motion estimation chip.
Maximum
Block Size
Displacement
+7 / -8
8 x 4n, 16 x 4n
+15 /-16
+7 / -8
8 x 4n, 16 x 4n
+15 /-16
+7 / -8
8 x 4n, 16 x 4n
+15 /-16
STi3220
PQFP144
(Plastic Package)
Minimum
Number of
Chip Clock
chips
Frequency
1.01MHz
1
4.07MHz
1
3.04MHz
1
12.2MHz
1
13.5MHz
1
13.5MHz
4
1/24
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STI3220CV Summary of contents |
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