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参数资料
| 型号： | TVP5150PBSG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 颜色信号转换 |
| 英文描述： | COLOR SIGNAL DECODER, PQFP32 |
| 封装： | GREEN, PLASTIC, TQFP-32 |
| 文件页数： | 4/27页 |
| 文件大小： | 453K |
| 代理商： | TVP5150PBSG4 |
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Detailed Description
8
SLES043 — September 2002
TVP5150
f – Frequency – MHz
–40
–35
–30
–25
–20
–15
–10
–5
0
5
10
01234567
No Notch Filter
Notch3 Filter
Notch2 Filter
Amplitude
–
dB
f – Frequency – MHz
0.0
0.2
0.4
0.6
0.8
1.0
012345
A
mp
li
tu
d
e
–
dB
4 line (1,1,1,1)/4
Figure 2–2. Comb Filters Frequency Response
Figure 2–3. Chroma Trap Filter Frequency
Response, NTSC Square Pixel Sampling
4 line (1,3,3,1)/8
3 line (1,2,1)/4
Notch1 Filter
f – Frequency – MHz
–40
–35
–30
–25
–20
–15
–10
–5
0
5
10
01234567
No Notch Filter
Notch3 Filter
Notch1 Filter
f – Frequency – MHz
–40
–35
–30
–25
–20
–15
–10
–5
0
5
10
01234567
Amplitude
–
dB
Amplitude
–
dB
Figure 2–4. Chroma Trap Filter Frequency
Response, 13.5-MHz Sampling
Figure 2–5. Chroma Trap Filter Frequency
Response, PAL Square Pixel Sampling
Notch2 Filter
No Notch Filter
Notch2 Filter
Notch1 Filter
Notch3 Filter
2.5.2 Color Low-Pass Filter
In some applications, it is desirable to limit the U/V bandwidth to avoid crosstalk. This is especially true in case
of nonstandard video signals that have asymmetrical U/V sidebands. In this case, notch filters are provided
that limits the bandwidth of the U/V signals.
Notch filters are needed when the comb filtering turns off due to extreme color transitions in the input image.
The response of these notch filters is shown in Figure 2–6 through Figure 2–9. The notch filters have three
options that allow three different frequency responses based on the color frequency characteristics of the input
video.
相关PDF资料 |
PDF描述 |
|---|---|
| TVP5150PBS | COLOR SIGNAL DECODER, PQFP32 |
| TVP5150PBSR | COLOR SIGNAL DECODER, PQFP32 |
| TVP5151IPBSQ1 | COLOR SIGNAL DECODER, PQFP32 |
| TVP5151IPBSRQ1 | COLOR SIGNAL DECODER, PQFP32 |
| TVP5151IPBSR | COLOR SIGNAL DECODER, PQFP32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TVP5150PBSR | 功能描述:视频 IC Very Low Power Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
| TVP5150PBSRG4 | 制造商:Texas Instruments 功能描述: |
| TVP5151 | 制造商:TI 制造商全称:Texas Instruments 功能描述:Ultralow-Power NTSC/PAL/SECAM Video Decoder |
| TVP5151EVM | 功能描述:视频 IC 开发工具 TVP5151 Eval Mod RoHS:否 制造商:Texas Instruments 产品:Evaluation Boards 类型:YPbPr to RGBHV Converters 工具用于评估:LMH1251 工作电源电压:5 V |
| TVP5151IPBS | 功能描述:视频 IC UltraLo-Pwr NTSC/ RoHS:否 制造商:Fairchild Semiconductor 工作电源电压:5 V 电源电流:80 mA 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-28 封装:Reel |
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