參數(shù)資料
型號： ADV7184BSTZ
廠商： Analog Devices Inc
文件頁數(shù)： 85/112頁
文件大?。?/td> 0K
描述： IC DECODER VID SDTV MULTI 80LQFP
標準包裝： 1
類型： 視頻解碼器
應用： 投影儀，錄音機，安全
電壓 - 電源，模擬： 3.15 V ~ 3.45 V
電壓 - 電源，數(shù)字： 1.65 V ~ 2 V
安裝類型： 表面貼裝
封裝/外殼： 80-LQFP
供應商設備封裝： 80-LQFP（14x14）
包裝： 托盤
ADV7184
Rev. A | Page 74 of 112
Table 92. PAL CC Data, Half-Byte Mode1
Byte
D [9]
D [8]
D [7]
D [6]
D [5]
D [4]
D [3]
D [2]
D [1]
D [0]
Description
0
Fixed preamble
1
Fixed preamble
2
1
Fixed preamble
3
0
1
0
1
0
DID
4
EP
EF
0
1
0
1
0
0
SDID
5
EP
0
0
1
0
Data count
6
EP
0
CCAP Word1 [7:4]
0
User data-words
7
EP
0
CCAP Word1 [3:0]
0
User data-words
8
EP
0
CCAP Word2 [7:4]
0
User data-words
9
EP
0
CCAP Word2 [3:0]
0
User data-words
10
CS [8]
CS [7]
CS [6]
CS [5]
CS [4]
CS [3]
CS [2]
CS [1]
CS [0]
Checksum
1 The bold values represent Gemstar- or CC-specific values.
Table 93. PAL CC Data, Full-Byte Mode1
Byte
D [9]
D [8]
D [7]
D [6]
D [5]
D [4]
D [3]
D [2]
D [1]
D [0]
Description
0
Fixed preamble
1
Fixed preamble
2
1
Fixed preamble
3
0
1
0
1
0
DID
4
EP
EF
0
1
0
1
0
0
SDID
5
EP
0
0
1
0
Data count
6
CCAP Word1 [7:0]
0
User data-words
7
CCAP Word2 [7:0]
0
User data-words
8
1
0
UDW padding 0x200
9
1
0
UDW padding 0x200
10
CS [8]
CS [7]
CS [6]
CS [5]
CS [4]
CS [3]
CS [2]
CS [1]
CS [0]
Checksum
1 The bold values represent Gemstar- or CC-specific values.
NTSC CC Data
Half-byte output mode is selected by setting GDECAD to 0; full-
byte mode is enabled by setting GDECAD to 1. See the GDECAD,
section. The data packet formats are shown in Table 90 and
Table 91. Only closed caption data can be embedded in the output
data stream.
NTSC closed caption data is sliced on Line 21 on even and odd
fields. The corresponding enable bit must be set high. See the
sections.
PAL CC Data
Half-byte output mode is selected by setting GDECAD to 0;
full-byte output mode is selected by setting GDECAD to 1.
Address 0x4C [0] section. Table 92 and Table 93 list the bytes of
the data packet.
PAL closed caption data is sliced from Line 22 and Line 335.
The corresponding enable bits must be set.
Only closed caption data can be embedded in the output data
GDECEL [15:0], Gemstar Decoding Even Lines,
Address 0x48 [7:0], Address 0x49 [7:0]
The 16 bits of GDECEL [15:0] are interpreted as a collection of
16 individual lines of decode-enable signals. Each bit refers to a
line of video in an even field. Setting the bit enables the decoder
block trying to find Gemstar or closed caption-compatible data
on that particular line. Setting the bit to 0 prevents the decoder
from trying to retrieve data. See Table 94 and Table 95.
To retrieve closed caption data services on NTSC (Line 284),
GDECEL [11] must be set.
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