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參數資料
| 型號： | ADV7180BCPZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | 10-Bit, 4 x Oversampling SDTV Video Decoder |
| 中文描述： | COLOR SIGNAL DECODER, QCC40 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, MO-220VJJD-2, LFCSP-40 |
| 文件頁數： | 23/112頁 |
| 文件大小： | 1320K |
| 代理商： | ADV7180BCPZ |
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ADV7180
Rev. A | Page 23 of 112
AV Code Insertion.
At this point, the demodulated chroma (Cr and Cb) signal
is merged with the retrieved luma values. AV codes can be
inserted (as per ITU-R BT.656).
SYNC PROCESSING
The ADV7180 extracts syncs embedded in the analog input
video signal. There is currently no support for external HS/VS
inputs. The sync extraction is optimized to support imperfect
video sources, such as videocassette recorders with head
switches. The actual algorithm used employs a coarse detection
based on a threshold crossing, followed by a more detailed
detection using an adaptive interpolation algorithm. The raw
sync information is sent to a line-length measurement and
prediction block. The output of this is then used to drive the
digital resampling section to ensure that the ADV7180 outputs
720 active pixels per line.
The sync processing on the ADV7180 also includes the
following specialized postprocessing blocks that filter and
condition the raw sync information retrieved from the digitized
analog video:
VSYNC Processor.
This block provides extra filtering of the detected VSYNCs
to improve vertical lock.
HSYNC Processor.
The HSYNC processor is designed to filter incoming
HSYNCs that have been corrupted by noise, providing
much improved performance for video signals with a
stable time base but poor SNR.
VBI DATA RECOVERY
The ADV7180 can retrieve the following information from the
input video:
Wide-screen signaling (WSS)
Copy generation management system (CGMS)
Closed captioning (CCAP)
Macrovision protection presence
EDTV data
Gemstar-compatible data slicing
Teletext
VITC/VPS
The ADV7180 is also capable of automatically detecting the
incoming video standard with respect to
Color subcarrier frequency
Field rate
Line rate
The ADV7180 can configure itself to support PAL B/G/H/I/D,
PAL M/N, PAL Combination N, NTSC M, NTSC J, SECAM
50 Hz/60 Hz, NTSC 4.43, and PAL 60.
GENERAL SETUP
Video Standard Selection
The VID_SEL[3:0] register allows the user to force the digital
core into a specific video standard. Under normal circumstances,
this is not necessary. The VID_SEL[3:0] bits default to an auto-
detection mode that supports PAL, NTSC, SECAM, and variants
thereof. The following section provides more information on
the autodetection system.
Autodetection of SD Modes
To guide the autodetect system of the ADV7180, individual
enable bits are provided for each of the supported video standards.
Setting the relevant bit to 0 inhibits the standard from being
detected automatically. Instead, the system picks the closest of
the remaining enabled standards. The results of the autodetection
block can be read back via the status registers. See the Global
Status Register section for more information.
VID_SEL[3:0], Address 0x00 [7:4]
Table 20. VID_SEL Function
VID_SEL[3:0]
0000 (default)
Description
Autodetect (PAL B/G/H/I/D) <–> NTSC J
(no pedestal), SECAM
Autodetect (PAL B/G/H/I/D) <–> NTSC M
(pedestal), SECAM
Autodetect (PAL N) (pedestal) <–> NTSC J
(no pedestal), SECAM
Autodetect (PAL N) (pedestal) <–> NTSC M
(pedestal), SECAM
NTSC J (1)
NTSC M (1)
PAL 60
NTSC 4.43 (1)
PAL B/G/H/I/D
PAL N = PAL B/G/H/I/D (with pedestal)
PAL M (without pedestal)
PAL M
PAL Combination N
PAL Combination N (with pedestal)
SECAM
SECAM (with pedestal)
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
AD_SEC525_EN, Enable Autodetection of SECAM 525
Line Video, Address 0x07 [7]
Setting AD_SEC525_EN to 0 (default) disables the
autodetection of a 525-line system with a SECAM-style, FM-
modulated color component.
Setting AD_SEC525_EN to 1 enables the detection of a
SECAM-style, FM-modulated color component.
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7180BSTZ | 10-Bit, 4 x Oversampling SDTV Video Decoder |
| ADV7181 | Multiformat SDTV Video Decoder |
| ADV7181B | Multiformat SDTV Video Decoder |
| ADV7181BBCPZ | Multiformat SDTV Video Decoder |
| ADV7181BBSTZ | Multiformat SDTV Video Decoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7180BCPZ | 制造商:Analog Devices 功能描述:IC VIDEO DECODER 10BIT 57.27MSPS LFCSP40 |
| ADV7180BCPZ-REEL | 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:- 產品變化通告: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 |
| ADV7180BST48Z | 功能描述:IC VID DECOD SDTV 10BIT 48LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標準包裝:250 系列:- 類型:電平移位器 應用:LCD 電視機/監控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應商設備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
| ADV7180BST48Z-RL | 功能描述:視頻 IC 48-Lead Low Profile Quad Flat Package 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 |
| ADV7180BSTZ | 功能描述:IC VIDEO DECODER SDTV 64-LQFP RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 標準包裝:250 系列:- 類型:電平移位器 應用:LCD 電視機/監控器 安裝類型:表面貼裝 封裝/外殼:28-WFQFN 裸露焊盤 供應商設備封裝:28-WQFN（4x4）裸露焊盤 包裝:帶卷 (TR) 其它名稱:296-32523-2TPS65198RUYT-ND |
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