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參數(shù)資料
| 型號： | TVP5154PNPRG4 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER WITH INDEPENDENT SCALERS AND FAST LOCK |
| 中文描述： | 4通道低功耗PAL / NTSC制式/ SECAM制式，帶有獨立的定標器和視頻解碼器快速鎖定 |
| 文件頁數(shù)： | 66/78頁 |
| 文件大?。?/td> | 824K |
| 代理商： | TVP5154PNPRG4 |
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10.4 Field Interleaving
10.4.1 Registers
Field 0
Field 1
Field 2
Field 3
Field 4
Field 0
Field 1
TVP5154
4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER
WITH INDEPENDENT SCALERS AND FAST LOCK
SLES163A–MARCH 2006–REVISED JULY 2006
In systems where either there are insufficient video ports on the back end processor to accommodate both
scaled and unscaled video streams, or where the back end processor does not have sufficient processing
power to perform compression on the unscaled image at the same time as other video processing, such
as composting of scaled images for display, it is possible to configure the TVP5154 to output different
image types on consecutive fields. In this configuration, the field rates for each of the scaled and unscaled
images is reduced to accommodate the interleaving of fields, while maintaining a 27-MHz pixel clock.
This is useful in video recording systems that are required to display a scaled image but still wish to
compress and store full resolution images, albeit at reduced field rates.
Field interleaving can generate a sequence of up to 16 fields, where each field can be either unscaled,
scaled, or blank.
The field loop count register controls how many fields are in the sequence. The field mode registers
control the output field type for each field.
Figure 10-3
shows how to configure field interleaving for a sequence of five fields where the first field is
unscaled, the second field is scaled, the third field is blank, the fourth field is scaled, and the fifth field is
blank.
Figure 10-3. Field Interleaving
Various additional registers exist to configure how the TVP5154 indicates to the back-end processor the
state of the current field. The Output Control register 1Fh allows the scaled/unscaled status to be indicated
by the upper bit of the SAV/EAV codes. The Output Control register 1Fh also allows the scaled/unscaled
status to be indicated by the DID codes of ancillary data.
66
Scaler Configuration
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TVP5156PNP | 功能描述:視頻 IC 4Ch NTSC/PAL Video Decoder 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 |
| TVP5156PNPR | 功能描述:視頻 IC 4Ch NTSC/PAL Video Decoder 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 |
| TVP5157PNP | 功能描述:視頻 IC 4Ch NTSC/PAL Video Decoder 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 |
| TVP5157PNPR | 功能描述:視頻 IC 4Ch NTSC/PAL Video Decoder 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 |
| TVP5158 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:With Independent Scalers, Noise Reduction, Auto Contrast, and Flexible Output Formatter for Security and Other Multi-Channel Video Applications |
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