AD9778 Analog Devices, AD9778 Datasheet - Page 9

• Manufacturer Part Number: AD9778
• Description: Dual 14-Bit, 1 GSPS, Digital-to-Analog Converter
• Manufacturer: Analog Devices

Specifications of AD9778

• Resolution (bits): 14bit
• Dac Update Rate: 1GSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Par

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