參數資料
型號: AD9983AKSTZ-170
廠商: Analog Devices Inc
文件頁數: 9/44頁
文件大小: 0K
描述: IC DISPLAY 8BIT 170MSPS 80LQFP
標準包裝: 1
應用: 視頻
接口: 模擬
電源電壓: 1.7 V ~ 3.47 V
封裝/外殼: 80-LQFP
供應商設備封裝: 80-LQFP(14x14)
包裝: 管件
安裝類型: 表面貼裝
AD9983A
Rev. 0 | Page 17 of 44
HSYNCOUT
VSYNC
FILTER
WINDOW
EXPECTED
EDGE
FILTER
WINDOW
EQUALIZATION
PULSES
HSYNCIN
0
647
5-
01
6
Figure 10. Sync Processing Filter
Vsync Filter and Odd/Even Fields
The Vsync filter is used to eliminate spurious Vsyncs, maintain
a stable timing relationship between the Vsync and Hsync
output signals, and generate the odd/even field output.
The filter works by examining the placement of Vsync with
respect to Hsync and if necessary shifting it in time slightly.
The goal is to keep the Vsync and Hsync leading edges from
switching at the same time, thus eliminating confusion as to
when the first line of a frame occurs. Register 0x14, Bit 2
enables the Vsync filter. Use of the Vsync filter is recommended
for all cases, including interlaced video, and is required when
using the Hsyncs per Vsync counter. Figure 11 and Figure 12
illustrate even/odd field determination in two situations.
FIELD 1
FIELD 0
SYNC SEPARATOR THRESHOLD
FIELD 1
FIELD 0
23
2
1
44
31
HSYNCIN
VSYNCIN
VSYNCOUT
O/E FIELD
ODD FIELD
QUADRANT
06
47
5-
01
7
Figure 11. Vsync Filter—Odd Field
FIELD 1
FIELD 0
SYNC SEPARATOR THRESHOLD
FIELD 1
FIELD 0
23
2
1
44
31
HSYNCIN
VSYNCIN
VSYNCOUT
O/E FIELD
EVEN FIELD
QUADRANT
06
47
5-
01
8
Figure 12. Vsync Filter—Even Field
相關PDF資料
PDF描述
AD9985KSTZ-140 IC INTERFACE 8BIT 140MSPS 80LQFP
AD9990BBCZ IC CCD SGNL PROCESSOR 112CSPBGA
AD9991KCPZRL IC CCD SIGNAL PROCESSOR 56-LFCSP
AD9992BBCZRL IC CCD SGNL PROC 12BIT 105CSPBGA
AD9995KCPZ IC CCD SIGNAL PROCESSOR 56-LFCSP
相關代理商/技術參數
參數描述
AD9983AKSTZ-1701 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 8-Bit Display Interface
AD9983KSTZ-110 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
AD9983KSTZ-140 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
AD9983KSTZ-170 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:
AD9984A 制造商:AD 制造商全稱:Analog Devices 功能描述:High Performance 10-Bit Display Interface