Datasheet

Data Sheet AD5161
Rev. B | Page 13 of 20
SPI INTERFACE
Table 6. AD5161 Serial Data-Word Format
B7 B6 B5 B4 B3 B2 B1 B0
D7 D6 D5 D4 D3 D2 D1 D0
MSB LSB
2
7
2
0
SDI
CLK
CS
VOUT
1
0
1
0
1
0
1
0
D7
D6 D5 D4 D3 D2 D1 D0
RDAC REGISTER LOAD
Figure 37. SPI Interface Timing Diagram (V
A
= 5 V, V
B
= 0 V, V
W
= V
OUT
)
t
CSHO
t
CSS
t
CL
t
CH
t
DS
t
CSW
t
S
t
CS1
t
CSH1
t
CH
SDI
CLK
CS
VOUT
1
0
1
0
1
0
V
DD
0
±1LSB
(DATA IN)
Dx Dx
Figure 38. SPI Interface Detailed Timing Diagram (V
A
= 5 V, V
B
= 0 V, V
W
= V
OUT
)