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參數(shù)資料
| 型號(hào)： | TMC2242A |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
| 中文描述： | 數(shù)字半帶插值/抽取濾波器的12位In/16-bit輸出，60兆赫 |
| 文件頁(yè)數(shù)： | 11/16頁(yè) |
| 文件大?。?/td> | 86K |
| 代理商： | TMC2242A |
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TMC2242A/TMC2242B
PRODUCT SPECIFICATION
11
Timing Diagrams
(continued)
Figure 9. Threshold Levels for Three State Measurements
65-2242A-11
t
ENA
2.0V
0.8V
t
DIS
Three-State
Outputs
OE
High Impedance
0.5V
0.5V
Applications Discussion
The TMC2242A and TMC2242B are well-suited for filtering
digitized composite NTSC or PAL video. In Figure 10, the
TMC1175A 8-bit video A/D converter outputs, D
7-0
, are
connected to the TMC2242B inputs, SI
11-4
, respectively
(grounding SI
3-0
). The RND
2-0
controls are set to 111 for a
9-bit rounded decimated output on SO
15-7
.
In Figure 11, the TMC2242B 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
TMC2242B outputs SO
15-6
, respectively. The TMC2242B
RND
2-0
controls are set to 110 for rounded 10-bit interpola-
tion operation.
Figure 10. Decimating Oversampled Video With a Low Cost 8-bit A/D
Note:
Data buses are unsigned binarys; TMC2242 input is two’s complement.
Figure 11. Interpolating Digital Video Signals before Reconstruction
Composite
Video
75 Ohm
TMC1175A
8-bit A/D
65-2242A-12
TTL Clock
27.000 MHz (D1)
28.636 MHz (NTSC D2)
300 pF
510 pF
300 pF
2 uH
2 uH
75 Ohm
D6-0
TMC2242B
SO14-7
SI10-4
DEC=0
7
AGND
VIN
28.636 MHz (NTSC D2)
27.000 MHz (D1)
D7
SI11
SO15
14.318 MHz (NTSC D2)
13.500 MHz (D1)
TCO=INT=1
8
9
MSB
Composite
Video
75 Ohm
TMC3003
10-bit D/A
D8-0
300 pF
510 pF
300 pF
2 uH
2 uH
75 Ohm
D9
TMC2242B
SO14-6
SO15
SI10-0
SI11
11 LSB
MSB
12
9
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)
TCO=1 INT=DEC=0
65-2242A-13
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| TMC2242BKTC | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
| TMC2242BKTC1 | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
| TMC2242BKTC2 | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
| TMC2242AR2C1 | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
| TMC2242AR2C2 | Digital Half-Band Interpolating/Decimating Filter 12-bit In/16-bit Out, 60 MHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMC2242AKTC | 功能描述:視頻 IC Interp/Decim Filter Digital HB 12B/16B RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC2242AKTC1 | 功能描述:視頻 IC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC2242AKTC2 | 功能描述:視頻 IC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC2242AKTCT | 功能描述:視頻 IC Interp/Decim Filter Digital HB 12B/16B RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TMC2242AR2C | 功能描述:視頻 IC Interp/Decim Filter Digital HB 12B/16B RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
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