ad725-eb Analog Devices, Inc., ad725-eb Datasheet - Page 5

• Manufacturer Part Number: ad725-eb
• Description: Low Cost Rgb To Ntsc/pal Encoder With Luma Trap Port
• Manufacturer: Analog Devices, Inc.

REV. 0
Figure 4. 100% Color Bars on Vector Scope, NTSC
–0.5
1.0
0.5
0.0
0
Figure 3. 100% Color Bars, NTSC
10
20
(3.579545MHz
4.433618MHz)
OSCILLATOR
30
µs
APL = 50.8%
525 LINE NTSC
SLOW CLAMP TO 0.00V @ 6.63 s
FSC
OR
40
GENERATION
TEKTRONIX
PLATFORM
NO FILTERING
SIGNAL
TG2000
50
GENLOCK
Figure 2. Evaluation Setup
FSC
60
RGB
100
0
–50
50
COMPOSITE
SYNC
3
HP3314A
75
4 PLL
–5–
NTSC/PAL
ENCODER
RGB TO
AD725
+5V
Figure 6. 100% Color Bars on Vector Scope, PAL
4FSC
–0.5
1.0
0.5
0.0
Typical Characteristics–AD725
0
COMPOSITE
Figure 5. 100% Color Bars, PAL
VIDEO
10
20
PVM-1354Q
WAVEFORM
TEKTRONIX
MONITOR
MONITOR
MODEL
VM700A
SONY
75
30
APL = 50.6%
625 LINE PAL
SLOW CLAMP TO 0.00V @ 6.72 s
s
40
NO FILTERING
50
60