Datasheet

Data Sheet ADV7390/ADV7391/ADV7392/ADV7393
Rev. G | Page 75 of 108
Figure 95. Standard Definition CGMS Waveform
Figure 96. Enhanced Definition (525p) CGMS Waveform
Figure 97. Enhanced Definition (625p) CGMS Waveform
Figure 98. High Definition (720p) CGMS Waveform
CRC SEQUENCE
REF
0 IRE
–40 IRE
+70 IRE
+100 IRE
11.2µs
2.235µs ± 20ns
49.1µs ± 0.5µs
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12
C13 C14 C15 C16 C17
C18 C19
06234-093
C0 C1 C2 C3 C4 C5 C6 C7
C8 C9 C10 C11 C12
CRC SEQUENCE
REF
5.8µs ± 0.15µs
6T
0mV
–300mV
70% ± 10%
T = 1/(f
H
× 33) = 963ns
f
H
= HORIZONTAL SCAN FREQUENCY
T ± 30ns
+700mV
21.2µs ± 0.22µs
22T
C13 C14 C15 C16 C17
C18 C19
BIT 1 BIT 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIT 20
06234-094
R S
C0
LSB
C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12
C13
MSB
PEAK WHITE
SYNC LEVEL
500mV ± 25mV
5.5µs ± 0.125µs
R = RUN-IN
S = START CODE
13.7µs
06234-095
CRC SEQUENCE
REF
4T
3.128µs ± 90ns
17.2µs ± 160ns
22T
T = 1/(
f
H
× 1650/58) = 781.93ns
f
H
= HORIZONTAL SCAN FREQUENCY
1H
T ± 30ns
0mV
–300mV
70% ± 10%
+700mV
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
06234-096