Analog Devices AD9776A Manual page 12

AD9776A/AD9778A/AD9779A
CVDD18
CVDD18
CGND
CGND
REFCLK+
REFCLK–
CGND
CGND
CVDD18
CVDD18
CGND
AGND
SYNC_I+
SYNC_I–
DGND
DVDD18
P1D13
P1D12
P1D11
P1D10
P1D9
DGND
DVDD18
P1D8
P1D7
NC = NO CONNECT
NOTES
1. FOR OPTIMAL THERMAL PERFORMANCE, THE EXPOSED
PAD SHOULD BE SOLDERED TO THE GROUND PLANE FOR
THE 100-LEAD, THERMALLY ENHANCED TQFP PACKAGE.
Table 8. AD9778A Pin Function Descriptions
Pin
No. Mnemonic Description
1 CVDD18 1.8 V Clock Supply.
2 CVDD18 1.8 V Clock Supply.
3 CGND Clock Ground.
4 CGND Clock Common.
5 REFCLK+ Differential Clock Input.
6 REFCLK− Differential Clock Input.
7 CGND Clock Ground.
8 CGND Clock Ground.
9 CVDD18 1.8 V Clock Supply.
10 CVDD18 1.8 V Clock Supply.
11 CGND Clock Ground.
12 AGND Analog Ground.
13 SYNC_I+ Differential Synchronization Input.
14 SYNC_I− Differential Synchronization Input.
15 DGND Digital Ground.
16 DVDD18 1.8 V Digital Supply.
17 P1D13 Port 1, Data Input D13 (MSB).
18 P1D12 Port 1, Data Input D12.
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
1
PIN 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Figure 4. AD9778A Pin Configuration
ANALOG DOMAIN
DIGITAL DOMAIN
AD9778A
TOP VIEW
(Not to Scale)
Pin
No. Mnemonic
19 P1D11
20 P1D10
21 P1D9
22 DGND
23 DVDD18
24 P1D8
25 P1D7
26 P1D6
27 P1D5
28 P1D4
29 P1D3
30 P1D2
31 P1D1
32 DGND
33 DVDD18
34 P1D0
35 NC
36 NC
Rev. B | Page 12 of 56
I120
75
74 VREF
IPTAT
73
72 AGND
IRQ
71
70 RESET
69 CSB
SCLK
68
SDIO
67
SDO
66
65 PLL_LOCK
64 DGND
SYNC_O+
63
SYNC_O–
62
DVDD33
61
60 DVDD18
59 NC
NC
58
P2D0
57
56 P2D1
55 P2D2
54 DGND
DVDD18
53
52 P2D3
51 P2D4
Description
Port 1, Data Input D11.
Port 1, Data Input D10.
Port 1, Data Input D9.
Digital Ground.
1.8 V Digital Supply.
Port 1, Data Input D8.
Port 1, Data Input D7.
Port 1, Data Input D6.
Port 1, Data Input D5.
Port 1, Data Input D4.
Port 1, Data Input D3.
Port 1, Data Input D2.
Port 1, Data Input D1.
Digital Ground.
1.8 V Digital Supply.
Port 1, Data Input D0 (LSB).
No Connect.
No Connect.