Datasheet

AD9786
Rev. B | Page 50 of 56
03152-091
DVDDS
OPCLK
DGND;8
DVDDS;16
1
2
3
6
5
15
4
C53
0.1μF
C52
4.7μF
6.3V
C44
4.7μF
6.3V
C51
0.1μF
C43
4.7μF
6.3V
C50
0.1μF
R50
9kΩ
R48
9kΩ
R45
9kΩ
OPCLK_3
SPCSB
SPCLK
R20
10kΩ
SPSDI
R21
10kΩ
SPSDO
U5
12 13
11
9
10
DVDDS
8
3
5
4
2
1
6
PRE
CLR
Q
Q_
J
K
CLK
74LCX112
U7
74AC14
74AC14
74AC14
SPI PORT
P1
U5
U5
U5
21
3
5
4
6
74AC14
74AC14
74AC14
U5
U5
++
U6
13 12
10
8
11
9
74AC14
74AC14
74AC14
U6
U6
U6
12
4
6
3
5
74AC14
74AC14
74AC14
U6
U6
DGND;8
DVDDS;16
13
12
11
7
9
14
10
PRE
CLR
Q
Q_
J
K
CLK
74LCX112
U7
+
Figure 91. SPI and One-Port Clock Circuitry, Rev. F Evaluation Board