參數(shù)資料
型號(hào): DMA2271
英文描述: Consumer IC
中文描述: 消費(fèi)性IC
文件頁(yè)數(shù): 20/36頁(yè)
文件大小: 496K
代理商: DMA2271
DMA 2271, DMA 2280, DMA 2281
20
Chroma out
Pins 21–24, 27–30
Luma out
Pins
31–38
Composite
Synchronization out
Pin 53
Horizontal Blank out
Pin 52
Color Key
internal
Combined Horizontal
Blanking and Color Key
Pin 50
Fig. 2–19:
Timing of video and sync signals
t
CK1
t
C52
t
LD
t
C51
t
HB1
t
HB2
t
CK2
2.5.7. Frequency Responses
5
0
–5
–10
–15
–20
–25
–30
–35
–40
0
1
2
3
4
5
6
7
8
Fig. 2–20:
Luminance channel frequency response
dB
f (MHz)
5
0
–5
–10
–15
–20
–25
–30
–35
–40
0
1
2
3
4
Fig. 2–21:
Chrominance channel frequency response
dB
f (MHz)
I
II
III
VI
V
IV
VII
VIII
I
II
III
IV
VI
Table 2–1:
Selection of the luma filter response
LFI
Curve No.
0
1
2
3
I
II
III
IV
Table 2–2:
Selection of the chroma filter response
CFI
Curve No.
0
1
2
3
4
5
6
7
I
II
III
IV
V
VI
VII
VIII
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