參數(shù)資料
型號: BT849A
英文描述: Single-Chip Video Capture for PCI
中文描述: 單芯片的PCI視頻捕捉
文件頁數(shù): 27/141頁
文件大?。?/td> 1149K
代理商: BT849A
17
F
UNCTIONAL
D
ESCRIPTION
Composite Video Input Formats
L848A_A
Bt848/848A/849A
Single-Chip Video Capture for PCI
Composite Video Input Formats
Bt848 supports several composite video input formats. Table 4 shows the different
video formats and some of the countries in which each format is used.
The video decoder must be programmed appropriately for each of the compos-
ite video input formats. Table 5 lists the register values that need to be programmed
for each input format.
Table 4. Video Input Formats Supported by the Bt848
Format
Lines
Fields
F
SC
NTSC-M
525
60
3.58 MHz
NTSC-Japan
(1)
525
60
3.58 MHz
PAL-B
625
50
4.43 MHz
PAL-D
625
50
4.43 MHz
PAL-G
625
50
4.43 MHz
PAL-H
625
50
4.43 MHz
PAL-I
625
50
4.43 MHz
PAL-M
525
60
3.58 MHz
PAL-N Combination
625
50
3.58 MHz
PAL-N
625
50
4.43 MHz
SECAM
625
50
4.43 MHz
Notes:(1). NTSC-Japan has 0 IRE setup.
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