Datasheet
AD9776/AD9778/AD9779
Rev. A | Page 9 of 56
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
74
VREF
73
IPTAT
72
AGND
69
CSB
70
RESET
71
IRQ
75
I120
68
SCLK
67
SDIO
66
SDO
64
DGND
63
SYNC_O+
62
SYNC_O–
61
DVDD33
60
DVDD18
59
NC
58
NC
57
NC
56
NC
55
P2D<0>
54
DGND
53
DVDD18
52
P2D<1>
51
P2D<2>
65
PLL_LOCK
PIN 1
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<4>
27
P1D<3>
28
P1D<2>
29
P1D<1>
30
P1D<0>
31
NC
32
DGND
33
DVDD18
34
NC
35
NC
36
NC
37
DATACLK
38
DVDD33
39
TXENABLE
40
P2D<11>
41
P2D<10>
42
P2D<9>
43
DVDD18
44
DGND
45
P2D<8>
46
P2D<7>
47
P2D<6>
48
P2D<5>
49
P2D<4>
50
P2D<3>
2
CVDD18
3
CGND
4
CGND
7
CGND
6
CLK–
5
CLK+
1
CVDD18
8
CGND
9
CVDD18
10
CVDD18
12
AGND
13
SYNC_I+
14
SYNC_I–
15
DGND
16
DVDD18
17
P1D<11>
18
P1D<10>
19
P1D<9>
20
P1D<8>
21
P1D<7>
22
DGND
23
DVDD18
24
P1D<6>
25
P1D<5>
11
CGND
AD9776
TOP VIEW
(Not to Scale)
ANALOG DOMAIN
DIGITAL DOMAIN
NC = NO CONNECT
05361-002
Figure 3. AD9776 Pin Configuration
Table 6. AD9776 Pin Function Descriptions
Pin
No.
Mnemonic Description
1 CVDD18 1.8 V Clock Supply.
2 CVDD18 1.8 V Clock Supply.
3 CGND Clock Common.
4 CGND Clock Common.
5 CLK+
1
Differential Clock Input.
6 CLK−
1
Differential Clock Input.
7 CGND Clock Common.
8 CGND Clock Common.
9 CVDD18 1.8 V Clock Supply.
10 CVDD18 1.8 V Clock Supply.
11 CGND Clock Common.
12 AGND Analog Common.
13 SYNC_I+ Differential Synchronization Input.
14 SYNC_I− Differential Synchronization Input.
15 DGND Digital Common.
16 DVDD18 1.8 V Digital Supply.
17 P1D<11> Port 1, Data Input D11 (MSB).
18 P1D<10> Port 1, Data Input D10.
19 P1D<9> Port 1, Data Input D9.
Pin
No.
Mnemonic Description
20 P1D<8> Port 1, Data Input D8.
21 P1D<7> Port 1, Data Input D7.
22 DGND Digital Common.
23 DVDD18 1.8 V Digital Supply.
24 P1D<6> Port 1, Data Input D6.
25 P1D<5> Port 1, Data Input D5.
26 P1D<4> Port 1, Data Input D4.
27 P1D<3> Port 1, Data Input D3.
28 P1D<2> Port 1, Data Input D2.
29 P1D<1> Port 1, Data Input D1.
30 P1D<0> Port 1, Data Input D0 (LSB).
31 NC No Connect.
32 DGND Digital Common.
33 DVDD18 1.8 V Digital Supply.
34 NC No Connect.
35 NC No Connect.
36 NC No Connect.
37
DATACLK
Data Clock Output.
38 DVDD33 3.3 V Digital Supply.