adv7314 Analog Devices, Inc., adv7314 Datasheet - Page 61

• Manufacturer Part Number: adv7314
• Description: Multiformat 216 Mhz Video Encoder With Six Nsv 14-bit Dacs
• Manufacturer: Analog Devices, Inc.

REV. 0
70%
70%
+700mV
–300mV
+700mV
–300mV
0mV
0mV
10%
10%
70%
–300mV
+700mV
+100 IRE
+70 IRE
–40 IRE
0mV
10%
0 IRE
3.128 s
4.15 s
4T
4T
5.8 s
11.2 s
60ns
90ns
6T
REF
REF
0.15 s
Figure 62. Standard Definition CGMS Waveform
Figure 61. Progressive Scan CGMS Waveform
2.235 s
BIT 1 BIT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BIT 20
BIT 1 BIT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BIT 20
Figure 64. HDTV 1080i CGMS Waveform
Figure 63. HDTV 720P CGMS Waveform
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
REF
REF
T
T
20ns
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
BIT 1 BIT 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BIT 20
30ns
30ns
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
–61–
22.84 s
17.2 s
22T
1H
22T
1H
160ns
210ns
49.1 s
21.2 s
T = 1/(f
f
T = 1/(f
f
H
H
= HORIZONTAL SCAN FREQUENCY
= HORIZONTAL SCAN FREQUENCY
0.5 s
22T
H
H
0.22 s
1650/58) = 781.93ns
2200/77) = 1.038 s
T = 1/(f
f
T
H
= HORIZONTAL SCAN FREQUENCY
30ns
CRC SEQUENCE
CRC SEQUENCE
H
33) = 963ns
CRC SEQUENCE
CRC SEQUENCE
ADV7314