AD724 Analog Devices, AD724 Datasheet - Page 7

• Manufacturer Part Number: AD724
• Description: RGB to NTSC/PAL Encoder
• Manufacturer: Analog Devices

REV. B
DIFFERENTIAL PHASE (deg)
DG DP (NTSC) (SYNC = EXT)
FIELD = 1 LINE = 27, 100 IRE RAMP
DIFFERENTIAL GAIN (%)
–0.2
–0.4
–0.6
DG DP (PAL) (SYNC = EXT)
LINE = 25, 700mV RAMP
DIFFERENTIAL GAIN (%)
–0.1
–0.2
–0.3
–0.4
–0.5
DIFFERENTIAL PHASE (deg)
–0.5
–1.0
–1.5
–2.0
–0.5
–1.0
–1.5
–0.8
0.3
0.2
0.1
0.0
1.5
1.0
0.5
0.0
0.2
0.0
0.5
0.0
0.00
0.00
0.00
0.00
1ST
1ST
Figure 10. Composite Output
Differential Phase and Gain, NTSC
Figure 11. Composite Output
Differential Phase and Gain, PAL
–0.44
–1.01
–0.16
–0.14
2ND
2ND
–0.49
–1.14
–0.32
–1.18
3RD
3RD
MIN = –0.53
MIN = –1.14
MIN = –0.32
MIN = –1.18
–0.53
–1.01
–0.16
–0.44
4TH
4TH
MAX = 0.70
MAX = 0.00
MAX = 0.00
MAX = 0.10
–0.52
–0.53
0.04
0.42
5TH
5TH
p–p/MAX = 0.53
pk–pk = 1.14
pk–pk = 0.42
pk–pk = 1.89
–0.38
–0.01
0.10
0.70
6TH
6TH
–7–
H TIMING (PAL)
LINE = 25
H TIMING MEASUREMENT RS–170A (NTSC)
FIELD = 1 LINE = 22
94ns
100ns
AVERAGE
Figure 12. Horizontal Timing, NTSC
Figure 13. Horizontal Timing, PAL
AVERAGE
4.60 s
4.59 s
5.49 s
256
5.59 s
102ns
124ns
256
9.72 s
293.5mV
39.7 IRE
CYCLES
2.28 s
9.0
AD724
33.8 IRE
249.0mV