ADV7393 datasheet(67/96 Pages) AD

67 / 96 page

ADV7390/ADV7391/ADV7392/ADV7393

Rev. 0 | Page 67 of 96

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

Figure 93. Standard Definition CGMS Waveform

C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12

CRC SEQUENCE

REF

5.8µs ± 0.15µs

0mV

–300mV

70% ± 10%

T = 1/(

fH × 33) = 963ns

fH = HORIZONTAL SCAN FREQUENCY

T ± 30ns

+700mV

21.2µs ± 0.22µs

22T

C13 C14 C15 C16 C17 C18 C19

BIT 1 BIT 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIT 20

Figure 94. Enhanced Definition (525p) CGMS Waveform

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

Figure 95. Enhanced Definition (625p) CGMS Waveform

CRC SEQUENCE

REF

3.128µs ± 90ns

17.2µs ± 160ns

22T

T = 1/(

fH × 1650/58) = 781.93ns

fH = HORIZONTAL SCAN FREQUENCY

T ± 30ns

0mV

–300mV

70% ± 10%

+700mV

C1 C2 C3

C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19

BIT 1 BIT 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIT 20

Figure 96. High Definition (720p) CGMS Waveform

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