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| 型號： | ADV7180 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 10-Bit, 4 x Oversampling SDTV Video Decoder |
| 中文描述： | 10位，4個采樣標(biāo)清視頻解碼器 |
| 文件頁數(shù)： | 55/112頁 |
| 文件大小： | 1320K |
| 代理商： | ADV7180 |
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ADV7180
Table 71. Ancillary Data in Byte Output Format
1
Byte
B9
B8
0
0
0
1
1
1
2
1
1
3
EP
EP
4
EP
EP
5
EP
EP
6
EP
EP
7
EP
EP
8
EP
EP
9
EP
EP
10
11
12
13
14
.
.
.
.
.
.
.
.
.
n 3
1
0
n 2
1
0
n 1
B8
1
This mode does not
fully comply with ITU-R BT.1364.
Rev. A | Page 55 of 112
B7
0
1
1
0
B6
0
1
1
B5
0
1
1
B4
0
1
1
B3
0
1
1
B2
0
1
1
B1
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
.
.
.
0
0
0
B0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
.
.
.
0
0
0
Description
Ancillary data preamble.
I
2
C_DID6_2[4:0]
I
2
C_SDID7_2[5:0]
DC[4:0]
VBI_DATA_STD[3:0]
Line_number[9:5]
Line_number[4:0]
0
0
VBI_WORD_1[7:0]
VBI_WORD_2[7:0]
VBI_WORD_3[7:0]
VBI_WORD_4[7:0]
VBI_WORD_5[7:0]
.
.
.
.
.
.
.
.
.
0
0
0
0
0
0
Checksum
DID.
SDID.
Data count.
ID0 (User Data-Word 1).
ID1 (User Data-Word 2).
ID2 (User Data-Word 3).
ID3 (User Data-Word 4).
ID4 (User Data-Word 5).
ID5 (User Data-Word 6).
ID6 (User Data-Word 7).
ID7 (User Data-Word 8).
ID8 (User Data-Word 9).
0
padding[1:0]
0
Even_Field
0
0
VDP_TTXT_TYPE[1:0]
.
.
.
0
0
.
.
.
0
0
.
.
.
0
0
Pad 0x200. These
padding words may be
present depending on
ancillary data type. User
data-word xx.
CS (checksum word).
Structure of VBI Words in Ancillary Data Stream
Each VBI data standard has been split into a clock-run-in
(CRI), a framing code (FC), and a number of data bytes (n).
The data packet in the ancillary stream includes only the FC
and data bytes. Table 72 shows the format of the VBI_WORD_x
in the ancillary data stream.
Table 72. Structure of VBI Data-Words in Ancillary Stream
Ancillary Data
Byte Number
Byte Type
VBI_WORD_1
FC0
VBI_WORD_2
FC1
VBI_WORD_3
FC2
VBI_WORD_4
DB1
…
…
VBI_WORD_N + 3
DBn
Description
Framing code [23:16]
Framing code [15:8]
Framing code [7:0]
1
st
data byte
…
Last (n
th
) data byte
VDP Framing Code
The length of the actual framing code depends on the VBI data
standard. For uniformity, the length of the framing code
reported in the ancillary data stream is always 24 bits. For
standards with a smaller framing code length, the extra LSB bits
are set to 0. The valid length of the framing code can be
decoded from the VBI_DATA_STD bit available in ID0
(UDW 1). The framing code is always reported in the inverse-
transmission order.
Table 73 shows the framing code and its valid length for VBI
data standards supported by VDP.
Example
For teletext (B-WST), the framing code byte is 11100100
(0xE4), with bits shown in the order of transmission. For
VBI_WORD_1 = 0x27, VBI_WORD_2 = 0x00, and
VBI_WORD_3 = 0x00 translated into UDWs in the ancillary
data stream for nibble mode is as follows:
UDW5 [5:2] = 0010
UDW6 [5:2] = 0111
UDW7 [5:2] = 0000 (undefined bits set to 0)
UDW8 [5:2] = 0000 (undefined bits set to 0)
UDW9 [5:2] = 0000 (undefined bits set to 0)
UDW10 [5:2] = 0000 (undefined bits set to 0)
For byte mode:
UDW5 [9:2] = 0010_0111
UDW6 [9:2] = 0000_0000 (undefined bits set to 0)
UDW7 [9:2] = 0000_0000 (undefined bits set to 0)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7180_12 | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, 4?? Oversampling SDTV Video Decoder |
| ADV7180BCP32Z | 制造商:Analog Devices 功能描述:10-BIT, 4? OVERSAMPLING SDTV VIDEO DECODER - Trays |
| ADV7180BCP32Z-RL | 制造商:Analog Devices 功能描述:IC |
| ADV7180BCPZ | 功能描述:IC VIDEO DECODER SDTV 40-LFCSP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標(biāo)準(zhǔn)包裝:250 系列:- 類型:電平移位器 應(yīng)用:LCD 電視機(jī)/監(jiān)控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
| ADV7180BCPZ | 制造商:Analog Devices 功能描述:IC VIDEO DECODER 10BIT 57.27MSPS LFCSP40 |
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