AD725 查看數據表（PDF） - Analog Devices

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AD725

Low Cost RGB to NTSC/PAL Encoder with Luma Trap Port

Analog Devices 

AD725–Typical Characteristics

1.0

APL = 46.6%

525 LINE NTSC NO FILTERING

SLOW CLAMP TO 0.00V

@ 6.63␮s

100

0.5

50

0.0

0

–0.5

0

–50

10

20

30

40

50

60

␮s

Figure 7. Modulated Pulse and Bar, NTSC

1.0

APL = 33.5%

625 LINE PAL NO FILTERING

SLOW CLAMP TO 0.00V

@ 6.72 ␮s

0.5

0.0

–0.5

0

10

20

30

40

50

60

␮s

Figure 9. Modulated Pulse and Bar, PAL

200mV

1␮s

Figure 8. Zoom on Modulated Pulse, NTSC

200mV

1␮s

Figure 10. Zoom on Modulated Pulse, PAL

–6–

REV. 0

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