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參數(shù)資料
| 型號： | ADV7184BSTZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | Multiformat SDTV Video Decoder with Fast Switch Overlay Support |
| 中文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | LEAD FREE, MS-026BEC, LQFP-80 |
| 文件頁數(shù)： | 51/108頁 |
| 文件大?。?/td> | 925K |
| 代理商： | ADV7184BSTZ |
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ADV7184
VDP_TTXT_TYPE_MAN_ENABLE Enable Manual
Selection of Teletext Type, Address 0x60 [2], User Sub Map
0
(default)—Manual programming of the teletext type is
disabled.
1—Manual programming of the teletext type is enabled.
Rev. 0 | Page 51 of 108
VDP_TTXT_TYPE_MAN [1:0] Specify the Teletext Type,
Address 0x60 [1:0], User Sub Map
These bits specify the teletext type to be decoded. These bits are
functional only if VDP_TTXT_TYPE_MAN_ENABLE is set to 1.
Table 67. VDP_TTXT_TYPE_MAN Function
VDP_TTXT_
TYPE_MAN
[1:0]
Description
625/50 (PAL )
00 (default)
Teletext-ITU-
BT.653- 625/50-A.
01
Teletext-ITU-
BT.653- 625/50-B
(WST).
10
Teletext-ITU-
BT.653- 625/50-C.
525/60 (NTSC).
Reserved.
Teletext-ITU-BT.653-
525/60-B.
Teletext-ITU-BT.653-
525/60-C or EIA516
(NABTS).
Teletext-ITU-BT.653-
525/60-D.
11
Teletext-ITU-
BT.653- 625/50-D.
VDP Ancillary Data Output
Reading the data back via I
2
C may not be feasible for VBI data
standards with high data rates (for example, teletext). An
alternative is to place the sliced data in a packet in the line
blanking of the digital output CCIR656 stream. This is available
for all standards sliced by the VDP module.
When data has been sliced on a given line, the corresponding
ancillary data packet is placed immediately after the next EAV
code that occurs at the output (that is, data sliced from multiple
lines are not buffered up and then emitted in a burst). Note that
the line number on which the packet is placed differs from the
line number on which the data was sliced due to the vertical
delay through the comb filters.
Users can enable or disable the insertion of VDP decoded results
into the 656 ancillary streams by using the ADF_ENABLE bit.
ADF_ENABLE Enable Ancillary Data Output Through 656
Stream, Address 0x62 [7], User Sub Map
0
(default)—Disables insertion of VBI decoded data into
ancillary 656 stream.
1—Enables insertion of VBI decoded data into ancillary 656
stream.
The user may select the data identification word (DID) and the
secondary data identification word (SDID) through
programming the ADF_DID[4:0] and ADF_SDID[5:0]
bits
respectively as explained next.
ADF_DID[4:0] User Specified Data ID Word in Ancillary
Data, Address 0x62 [4:0], User Sub Map
This bit selects the data ID word to be inserted in the ancillary
data stream with the data decoded by the VDP.
The default value of ADF_DID [4:0] is 10101.
ADF_SDID[5:0] User Specified Secondary Data ID Word in
Ancillary Data, Address 0x63 [5:0], User Sub Map
These bits select the secondary data ID word to be inserted in
the ancillary data stream with the data decoded by the VDP.
The default value of ADF_SDID [5:0] is 101010.
DUPLICATE_ADF Enable Duplication/Spreading of
Ancillary Data over Y and C Buses, Address 0x 63 [7], User
Sub Map
This bit determines whether the ancillary data is duplicated
over both Y and C buses or if the data packets are spread
between the two channels.
0
(default)—The ancillary data packet is spread across the Y and
C data streams.
1—The ancillary data packet is duplicated on the Y and C data
streams.
ADF_MODE [1:0] Determine the Ancillary Data Output
Mode, Address 0x62 [6:5], User Sub Map
These bits determine if the ancillary data output mode is in byte
mode or nibble mode.
Table 68.
ADF_MODE
[1:0]
Description
00 (default)
Nibble mode.
01
Byte mode, no code restrictions.
10
Byte mode but 0x00 and 0xFF prevented (0x00
replaced by 0x01, 0xFF replaced by 0xFE).
11
Reserved.
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| ADV7186BBCZ | 功能描述:IC VIDEO DECODER 196CSPBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標準包裝:3,000 系列:OMNITUNE™ 類型:調諧器 應用:移動電話，手機，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應商設備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
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