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參數(shù)資料
| 型號： | ADV7180WBCPZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 57/116頁 |
| 文件大小： | 0K |
| 描述： | IC VIDEO DECODER SDTV 40LFCSP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 視頻解碼器 |
| 應(yīng)用： | 數(shù)碼相機(jī)，手機(jī)，便攜式視頻 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 40-LFCSP-VQ（6x6） |
| 包裝： | 帶卷 (TR) |
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Data Sheet
ADV7180
Rev. I | Page 45 of 116
AV CODE INSERTION AND CONTROLS
This section describes the I2C-based controls that affect the
following:
Insertion of AV codes into the data stream
Data blanking during the vertical blank interval (VBI)
The range of data values permitted in the output data stream
The relative delay of luma vs. chroma signals
Some of the decoded VBI data is inserted during the horizontal
blanking interval. See the Gemstar Data Recovery section for
more information.
BT.656-4, ITU-R BT.656-4 Enable, Address 0x04[7]
Between Revision 3 and Revision 4 of the ITU-R BT.656 standards,
the ITU has changed the toggling position for the V bit within
the SAV EAV codes for NTSC. The ITU-R BT.656-4 standard
bit allows the user to select an output mode that is compliant
with either the previous or new standard. For further information,
visit the International Telecommunication Union website.
Note that the standard change only affects NTSC and has no
bearing on PAL.
When ITU-R BT.656-4 is 0 (default), the ITU-R BT.656-3
specification is used. The V bit goes low at EAV of Line 10
and Line 273.
When ITU-R BT.656-4 is 1, the ITU-R BT.656-4 specification is
used. The V bit goes low at EAV of Line 20 and Line 283.
SD_DUP_AV, Duplicate AV Codes, Address 0x03[0]
Depending on the output interface width, it may be necessary to
duplicate the AV codes from the luma path into the chroma path.
In an 8-bit wide output interface (Cb/Y/Cr/Y interleaved data),
the AV codes are defined as FF/00/00/AV, with AV being the
transmitted word that contains information about H/V/F.
In this output interface mode, the following assignment takes
place: Cb = FF, Y = 00, Cr = 00, and Y = AV.
In a 16-bit output interface (64-lead LQFP only), where Y and
Cr/Cb are delivered via separate data buses, the AV code is
spread over the whole 16 bits. The SD_DUP_AV bit allows the
user to replicate the AV codes on both buses; therefore, the full
AV sequence can be found on the Y bus as well as on the Cr/Cb
bus (see Figure 36).
When SD_DUP_AV is 0 (default), the AV codes are in single
fashion (to suit 8-bit interleaved data output).
When SD_DUP_AV is 1, the AV codes are duplicated (for
16-bit interfaces).
VBI_EN, Vertical Blanking Interval Data Enable,
Address 0x03[7]
The VBI enable bit allows data such as intercast and closed
caption data to be passed through the luma channel of the decoder
with a minimal amount of filtering. All data for Line 1 to Line 21 is
passed through and available at the output port. The ADV7180
does not blank the luma data and automatically switches all filters
along the luma data path into their widest bandwidth. For active
video, the filter settings for YSH and YPK are restored.
section for information on the chroma path.
When VBI_EN is 0 (default), all video lines are filtered/scaled.
When VBI_EN is 1, only the active video region is filtered/scaled.
Y DATA BUS
00
AV
Y
FF
00
AV
Y
FF
Cr/Cb DATA BUS
00
AV
Cb
FF
00
Cb
AV CODE SECTION
FF
00
AV
Cb
AV CODE SECTION
Cb/Y/Cr/Y
INTERLEAVED
8-BIT INTERFACE
16-BIT INTERFACE
SD_DUP_AV = 1
SD_DUP_AV = 0
05700-
027
Figure 36. AV Code Duplication Control (64-Lead LQFP Only)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7180WBST48Z | 制造商:Analog Devices 功能描述: |
| ADV7180WBST48Z-RL | 功能描述:視頻 IC 10-bit 4x Oversampling SDTV 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 |
| ADV7180WBSTZ | 功能描述:視頻 IC 10-bit 4x Oversampling SDTV 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 |
| ADV7180WBSTZ-REEL | 功能描述:視頻 IC 10-bit 4x Oversampling SDTV 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 |
| ADV7181 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
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