參數(shù)資料
型號: AD9880/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 9/64頁
文件大?。?/td> 0K
描述: KIT EVALUATION AD9880
標準包裝: 1
系列: Advantiv®
主要目的: 視頻,視頻處理
嵌入式:
已用 IC / 零件: AD9880
主要屬性: 模擬和 HDMI/DVI 雙路顯示器端口
次要屬性: 自動偏移,色域轉(zhuǎn)換器,RGB 和 YCbCr 輸出格式
已供物品:
相關(guān)產(chǎn)品: AD9880KSTZ-150-ND - IC INTERFACE/HDMI 150MHZ 100LQFP
AD9880KSTZ-100-ND - IC INTERFACE/HDMI 100MHZ 100LQFP
其它名稱: Q5281026
AD9880
Rev. 0 | Page 17 of 64
Sync Slicer
The purpose of the sync slicer is to extract the sync signal from
the green graphics or luminance video signal that is connected
to the SOGIN input. The sync signal is extracted in a two step
process. First, the SOG input (typically 0.3 V below the black
level) is detected and clamped to a known dc voltage. Next, the
signal is routed to a comparator with a variable trigger level (set
by Register 0x1D, Bits [7:3]), but nominally 0.128 V above the
clamped voltage. The sync slicer output is a digital composite
sync signal containing both Hsync and Vsync information (see
Figure 9).
AD9880
PLL CLOCK
GENERATOR
HSYNC FILTER
AND
REGENERATOR
HSYNC 0
SOG OUT
HSYNC
COAST
DATACK
SOGIN 0
COAST
CHANNEL
SELECT
VSYNC 1
ODD/EVEN
FIELD
MUX
RH3
FH4
SP5
MUX
1ACTIVITY DETECT
2POLARITY DETECT
3REGENERATED HSYNC
4FILTERED HSYNC
5SET POLARITY
SP5
AD1
PD2
AD1
PD2
AD1
PD2
SYNC
SLICER
SYNC
SLICER
VSYNC 0
HSYNC 1
HSYNC OUT
VSYNC OUT
SOGIN 1
HSYNC/VSYNC
COUNTER
REG 26H, 27H
SYNC
PROCESSOR
AND
VSYNC FILTER
MUX
PLL SYNC FILTER EN
0x21:6
SP SYNC FILTER EN
0x21:7
SOGOUT SELECT
0x24:2,1
[0x11:7]
HSYNC
SELECT
[0x11:3]
COAST SELECT
0x12:1
VSYNC FILTER EN
0x21:5
FILTER COAST VSYNC
0x12:0
VSYNC
FILTERED
VSYNC
05087-008
AD1
SP5
MUX
Figure 8. Sync Processing Block Diagram
04740-015
SOG INPUT
SOGOUT OUTPUT
CONNECTED TO
HSYNCIN
NEGATIVE PULSE WIDTH = 40 SAMPLE CLOCKS
COMPOSITE
SYNC
AT HSYNCIN
VSYNCOUT
FROM SYNC
SEPARATOR
–300mV
700mV MAXIMUM
0mV
Figure 9. Sync Slicer and Sync Separator Output
相關(guān)PDF資料
PDF描述
S01-02-R SOLDER SLEEVE IMMERS RESIS .650"
ILSB1206ER180K INDUCTOR 18UH 10% 1206
242489-000 CWT-3811
VI-J10-EX CONVERTER MOD DC/DC 5V 75W
GEC20DRYH-S734 CONN EDGECARD 40POS DIP .100 SLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9880XSTZ-100 制造商:Analog Devices 功能描述:IC, ANALOG/HDMI DUAL DISPLAY INTERFACE, PQFP100
AD9882 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Interface for Flat Panel Displays
AD9882/PCB 制造商:Analog Devices 功能描述:DUAL INTRFC FOR FLAT PNL DISPLAY 100LQFP - Bulk
AD9882A 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Interface for Flat Panel Displays
AD9882A/PCB 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual Interface for Flat Panel Displays