ADV7390/ADV7391/ADV7392/ADV7393
+100 IRE
+70 IRE
CRC SEQUENCE
REF
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
0 IRE
–40 IRE
49.1µs ± 0.5µs
11.2µs
2.235µs ± 20ns
Figure 93. Standard Definition CGMS Waveform
CRC SEQUENCE
+700mV
REF
BIT 1 BIT 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIT 20
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
70% ± 10%
0mV
–300mV
21.2µs ± 0.22µs
22T
5.8µs ± 0.15µs
6T
T = 1/(fH × 33) = 963ns
fH = HORIZONTAL SCAN FREQUENCY
T ± 30ns
Figure 94. Enhanced Definition (525p) CGMS Waveform
R = RUN-IN
S = START CODE
PEAK WHITE
C0
LSB
C13
C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12
R
S
500mV ± 25mV
SYNC LEVEL
MSB
13.7µs
5.5µs ± 0.125µs
Figure 95. Enhanced Definition (625p) CGMS Waveform
CRC SEQUENCE
+700mV
REF
BIT 1 BIT 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIT 20
70% ± 10%
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
0mV
T ± 30ns
–300mV
17.2µs ± 160ns
4T
22T
3.128µs ± 90ns
T = 1/(fH × 1650/58) = 781.93ns
fH = HORIZONTAL SCAN FREQUENCY
1H
Figure 96. High Definition (720p) CGMS Waveform
Rev. 0 | Page 67 of 96
ADI [ ADI ]
