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参数资料
| 型号： | TMC2272AH5C |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | DSP Peripheral |
| 英文描述： | 12-BIT, DSP-VIDEO IMAGING, PPGA120 |
| 封装： | PLASTIC, PGA-120 |
| 文件页数： | 6/20页 |
| 文件大小： | 170K |
| 代理商： | TMC2272AH5C |
PRODUCT SPECIFICATION
TMC2272A
14
REV. 1.1.3 10/25/00
To convert between Y, R-Y, B-Y and HSV, the TMC2272A
isn’t needed at all; simply use the TMC2330A. To convert
between HSV and any other format, use the TMC2330A to
translate between HSV and Y, R-Y, B-Y, and use the
TMC2272A to translate between Y, R-Y, B-Y and the other
format. See Figures 8 and 9.
Figure 8. Conversion to HSV
Figure 9. Conversion from HSV
EQUALIZING PIPELINE
DELAY, 22 CYCLES
3X TMC2011
TMC2330A
TMC2272A
ANY DESIRED
COLORSPACE
A11-0
X11-0 (Y)
Y11-0 (R-Y)
Z11-0 (B-Y)
XRIN15-0
YPIN15-0
RXOUT15, 10-0
YPOUT15, 10-0
12
V
S
H
NOTE 1
12
B11-0
C11-0
Notes:
1. Connect TMC2272A MSBs (Bits 11) to TMC2330A MSBs (Bits 15) and also to TMC2330A Bits 14-11. Connect
TMC2272A LSBs (Bits 10-0) to TMC2330A LSBs (Bits 10-0). TMC2330A output bits 14-11 are overflow.
2. TMC2272A Y11-0 outputs should not be confused with the designation “Y” used to signify the intensity components.
The assignment of components to TMC2272A inputs and outputs may be altered through the selection of appropriate
coefficients.
EQUALIZING PIPELINE
DELAY, 22 CYCLES
3X TMC2011
TMC2330A
TMC2272A
ANY
COLORSPACE
A11-0
X11-0
Y11-0
Z11-0
XRIN15-0
YPIN15-0
RXOUT15, 10-0
YPOUT15, 10-0
12
V
S
H
NOTE 1
(Y)
(R-Y)
(B-Y)
12
B11-0
C11-0
Notes:
1. Connect input MSBs (Bits 11) to TMC2330A MSBs (Bits 15) and also to TMC2330A Bits 14-11. Connect input LSBs
(Bits 10-0) to TMC2330A LSBs (Bits 10-0).
2. TMC2272A Y11-0 outputs should not be confused with the designation “Y” used for an intensity component. Component
assignment depends on the coefficient used.
Input Interpolation/Output Decimation and
Filtering
In some applications the two color-difference signals (R-Y/B-Y
or Cr/Cb, for example) are transmitted at one-half the rate of
the luminance (Y) signal. These two color-difference signals
are often multiplexed to one signal which is at the same sample
rate as the luminance signal.
In many applications, if the color difference signals are
already band-limited, it is satisfactory to use the same color
difference sample for each two luminance samples. Little
improvement is obtained with a simple averaging ([A+B]/2)
interpolation lter. If the color difference signal is not band-
limited, either of these two methods may yield unsatisfactory
results due to aliasing. In this case, a Fairchild TMC2242B
digital low-pass (half-band) interpolating lter will correctly
band-limit each color difference signal as it is interpolated.
See Figure 10.
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相关代理商/技术参数 |
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| TMC2272AH5C2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TMC2272AH5C3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TMC2272AH6C | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TMC2272AH6C2 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Digital Colorspace Converter 36 Bit Color, 50 MHz |
| TMC2272AH6C3 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Digital Colorspace Converter 36 Bit Color, 50 MHz |
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