Datasheet

REV. B–6–
AD7722
ZERO FOR LAST 16 SCO CYCLESVALID DATA FOR 16 SCO CYCLES
VALID
CLKIN
SCO
(CFMT = 0)
FSO
(SFMT = 0)
SCO
32 SCO CYCLES
64 CKLIN CYCLES
Figure 2a. Generalized Serial Mode Timing (FSI = Logic Low or High, TSI = DOE)
ZERO FOR LAST 16 SCO CYCLES
VALID DATA FOR 16 SCO CYCLES
VALID
CLKIN
SCO
(CFMT = 0)
FSO
(SFMT = 1)
SCO
HIGH FOR LAST 16 SCO CYCLES
LOW FOR 16 SCO CYCLES
64 CKLIN CYCLES
32 SCO CYCLES
Figure 2b. Generalized Serial Mode Timing (FSI = Logic Low or High, TSI = DOE)
t
2
t
3
t
4
t
5
0.8V
2.3V
t
8
t
1
t
6
t
7 t
9
t
9
t
10
CLKIN
FSI
SCO
Figure 3. Serial Mode Timing for Clock Input, Frame Sync Input, and Serial Clock Output
CLKIN
LOW FOR
D15–D0
t
1
t
10
t
11
t
12
t
14
t
13
t
13
D15 D14 D13 D1 D0
D15 D14 D13 D1 D0
t
12
t
11
FSI
SCO
FSO
SDO
SCO
FSO
SDO
SFMT = LOGIC
LOW(0)
SFMT = LOGIC
HIGH(1)
Figure 4. Serial Mode Timing for Frame Sync Input, Frame Sync Output, Serial Clock Output,
and Serial Data Output (CFMT = Logic Low, TSI = DOE)