Datasheet
AD9785/AD9787/AD9788
Rev. A | Page 11 of 64
74
VREF
73
IPTAT
72
AGND
69
SPI_CSB
70
RESET
71
IRQ
75
I120
68
SCLK
67
SPI_SDIO
66
SPI_SDO
64
DGND
63
SYNC_O+
62
SYNC_O–
61
DVDD33
60
DVDD18
59
P2D[0]
58
P2D[1]
57
P2D[2]
56
P2D[3]
55
P2D[4]
54
DGND
53
DVDD18
52
P2D[5]
51
P2D[6]
65
PLL_LOCK
PIN 1 INDICATOR
100
AVDD33
99
AGND
98
AVDD33
97
AGND
96
AVDD33
95
AGND
94
AGND
93
OUT1_P
92
OUT1_N
91
AGND
90
AUX1_P
89
AUX1_N
88
AGND
87
AUX2_N
86
AUX2_P
85
AGND
84
OUT2_N
83
OUT2_P
82
AGND
81
AGND
80
AVDD33
79
AGND
78
AVDD33
77
AGND
76
AVDD33
26
P1D[8]
27
P1D[7]
28
P1D[6]
29
P1D[5]
30
P1D[4]
31
P1D[3]
32
DGND
33
DVDD18
34
P1D[2]
35
P1D[1]
36
P1D[0]
37
DATACLK
38
DVDD33
39
T
XENABLE
40
P2D[15]
41
P2D[14]
42
P2D[13]
43
DVDD18
44
DGND
45
P2D[12]
46
P2D[11]
47
P2D[10]
48
P2D[9]
49
P2D[8]
50
P2D[7]
2
CVDD18
3
CGND
4
CGND
7
CGND
6
REFCLK–
5
REFCLK+
1
CVDD18
8
CGND
9
CVDD18
10
CVDD18
12
AGND
13
SYNC_I+
14
SYNC_I–
15
DGND
16
DVDD18
17
P1D[15]
18
P1D[14]
19
P1D[13]
20
P1D[12]
21
P1D[11]
22
DGND
23
DVDD18
24
P1D[10]
25
P1D[9]
11
CGND
AD9788
TOP VIEW
(Not to Scale)
ANALOG DOMAIN
DIGITAL DOMAIN
0
7098-003
Figure 4. AD9788 Pin Configuration
Table 8. AD9788 Pin Function Descriptions
Pin No. Mnemonic Description
1, 2, 9, 10 CVDD18 1.8 V Clock Supply.
3, 4, 7, 8, 11 CGND Clock Common.
5 REFCLK+ Differential Clock Input, Positive.
6 REFCLK− Differential Clock Input, Negative.
12, 72, 77, 79, 81, 82, 85,
88, 91, 94, 95, 97, 99
AGND Analog Common.
13 SYNC_I+ Differential Synchronization Input, Positive.
14 SYNC_I− Differential Synchronization Input, Negative.
15, 22, 32, 44, 54, 64 DGND Digital Common.
16, 23, 33, 43, 53, 60 DVDD18 1.8 V Digital Supply.
17 P1D[15] Port 1, Data Input D15 (MSB).
18 P1D[14] Port 1, Data Input D14.
19 P1D[13] Port 1, Data Input D13.
20 P1D[12] Port 1, Data Input D12.
21 P1D[11] Port 1, Data Input D11.
24 P1D[10] Port 1, Data Input D10.
25 P1D[9] Port 1, Data Input D9.
26 P1D[8] Port 1, Data Input D8.
27 P1D[7] Port 1, Data Input D7.
28 P1D[6] Port 1, Data Input D6.
29 P1D[5] Port 1, Data Input D5.
30 P1D[4] Port 1, Data Input D4.