參數(shù)資料
型號: AD722
廠商: Analog Devices, Inc.
英文描述: RGB to NTSC/PAL Encoder(RGB與NTSC/PAL制式轉(zhuǎn)換編碼器)
中文描述: RGB到的NTSC / PAL編碼器(與的RGB的NTSC / PAL制式轉(zhuǎn)換編碼器)
文件頁數(shù): 6/12頁
文件大小: 319K
代理商: AD722
REV. 0
–6–
AD722–Typical Characteristics
1ST
2ND
3RD
4TH
5TH
6TH
–0.16
–0.49
–0.53
–0.52
–0.38
0.00
–0.44
–1.14
–1.01
–0.53
–0.01
DG DP (NTSC) (SYNC = EXT)
FIELD = 1 LINE = 27, 100 IRE RAMP
DIFFER0.00
DIFFERENTIAL PHASE (deg)
MIN = –0.53
MAX = 0.00
p–p/MAX = 0.53
MIN = –1.14
MAX = 0.00
pk–pk = 1.14
0.2
0.0
–0.2
–0.4
–0.6
–0.8
0.5
0.0
–0.5
–1.0
–1.5
Figure 10. Composite Output
Differential Phase and Gain, NTSC
1ST
2ND
3RD
4TH
5TH
6TH
0.00
–0.14
–0.32
–0.16
0.04
0.10
0.00
–1.01
–1.18
–0.44
0.42
0.70
0.3
0.2
0.1
0.0
–0.1
–0.2
–0.3
–0.4
–0.5
1.5
1.0
0.5
0.0
–0.5
–1.0
–1.5
–2.0
DG DP (PAL) (SYNC = EXT)
LINE = 25, 700mV RAMP
DIFFERENTIAL PHASE (deg)
MIN = –0.32
MAX = 0.10
pk–pk = 0.42
MIN = –1.18
MAX = 0.70
pk–pk = 1.89
Figure 11. Composite Output
Differential Phase and Gain, PAL
Figure 7. 100% Color Bars on Vector Scope, PAL
I
μs
0.10
0.5
–0.5
0
60
10
20
30
40
50
0.0
V
100
50
0
–50
APL = 11.6%
525 LINE NTSC NO FILTERING
SLOW CLAMP TO 0.00V @ 6.63μs
PRECISION MODE OFF
SYNCHRONOUS SYNC = SOURCE
FRAMES SELECTED : 1 2
Figure 8. Multipulse, NTSC
μs
0.10
0.5
–0.5
0
60
10
20
30
40
50
0.0
V
APL = 11.4%
625 LINE PAL NO FILTERING
SLOW CLAMP TO 0.00V @ 6.72μs
PRECISION MODE OFF SOUND-IN-SYNC OFF
SYNCHRONOUS SYNC = SOURCE
FRAMES SELECTED : 1 2 3 4
Figure 9. Multipulse, PAL
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