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參數(shù)資料
| 型號： | TMC2242CR2C1 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 數(shù)字信號處理外設(shè) |
| 英文描述： | TRANS PNP 20V 5A SOT-89 |
| 中文描述： | 12-BIT, DSP-DIGITAL FILTER, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 89K |
| 代理商： | TMC2242CR2C1 |
PRODUCT SPECIFICATION
TMC2242C
12
Figure 12. Decimating Oversampled Video With a Low Cost 8-bit A/D
TCO = 0 RND = 100 SO(3:0) = 0011 DEC = 0 INT = 1
Note:
Data buses are unsigned binary.
Figure 13. Interpolating Digital Video Signals before Reconstruction
TCO = 0 RND = 110 SO(3:0) = 0011 DEC = 0 INT = 0
Composite
Video
75 Ohm
TMC1175A
8-bit A/D
65-2242C-12
TTL Clock
27.000 MHz (D1)
28.636 MHz (NTSC D2)
300 pF
510 pF
300 pF
2 uH
2 uH
75 Ohm
D7-0
TMC2242C
SO15-8
SI11-4
8
AGND
VIN
28.636 MHz (NTSC D2)
27.000 MHz (D1)
14.318 MHz (NTSC D2)
13.500 MHz (D1)
8
Composite
Video
75 Ohm
TMC3003
10-bit D/A
D9-0
300 pF
510 pF
300 pF
2 uH
2 uH
75 Ohm
TMC2242C
SO15-6
SI11-0
12
10
AGND
IOUT
TTL Clock
27.000 MHz (D1)
28.636 MHz (NTSC D2)
28.636 MHz (NTSC D2)
27.000 MHz (D1)
14.318 MHz (NTSC D2)
13.500 MHz (D1)
65-2242C-13
Applications Discussion
The TMC2242C is well-suited to filtering digitized compos-
ite or component NTSC or PAL video. In Figure 14, the
TMC1175A 8-bit video A/D converter outputs, D
7-0
, are
connected to the TMC2242C inputs, SI
11-4
,
respectively. To
minimize noise and any chance of electrostatic damage,
inputs SI
3-0
should be grounded. Controls RND
2-0
are set to
100 and SO
1
is forced high to effect 8-bit rounding. SO
3-2
,
TCO, and DEC are forced low, whereas INT and SO
0
are
forced high. (Setting SO
0
high and TCO low selects
unsigned binary format at the input and output data ports,
eliminating the need for external MSB inverters.)
In Figure 15, the TMC2242C drives a fast D/A converter to
reconstruct analog composite video. The TMC3003 10-bit
digital-to-analog converter inputs, D
9-0
are connected to the
TMC2242C outputs SO
15-6
, respectively. The TMC2242C
RND
2-0
controls are set to 110 for rounded 10-bit interpola-
tion operation.
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| TMC2246AH5C1 | Image Filter 11 x 10 bit, 60 MHz |
| TMC2246AH5C2 | Image Filter 11 x 10 bit, 60 MHz |
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| TMC2246A | Image Filter 11 x 10 bit, 60 MHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| TMC2246 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Image Filter 11 x 10 bit, 60 MHz |
| TMC2246A | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Image Filter 11 x 10 bit, 60 MHz |
| TMC2246A WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| TMC2246AG1C | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:Image Filter 11 x 10 bit, 60 MHz |
| TMC2246AG1C1 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Image Filter 11 x 10 bit, 60 MHz |
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