Pin No.
Mnemonic
Description
41
P2D <12>
Port 2, Data Input D12
42
P2D <11>
Port 2, Data Input D11
43
DVDD18
1.8 V Digital Supply
44
DGND
Digital Common
45
P2D <10>
Port 2, Data Input D10
46
P2D <9>
Port 2, Data Input D9
47
P2D <8>
Port 2, Data Input D8
48
P2D <7>
Port 2, Data Input D7
49
P2D <6>
Port 2, Data Input D6
50
P2D <5>
Port 2, Data Input D5
51
P2D <4>
Port 2, Data Input D4
52
P2D <3>
Port 2, Data Input D3
53
DVDD18
1.8 V Digital Supply
54
DGND
Digital Common
55
P2D <2>
Port 2, Data Input D2
56
P2D <1>
Port 2, Data Input D1
57
P2D <0>
Port 2, Data Input D0
58
NC
No Connect
59
NC
No Connect
60
DVDD18
1.8 V Digital Supply
61
DVDD33
3.3 V Digital Supply
62
SYNC_O–
Differential Synchronization Output
63
SYNC_O+
Differential Synchronization Output
64
DGND
Digital Common
65
PLL_LOCK
PLL Lock Indicator
66
SDO
SPI Port Data Output
67
SDIO
SPI Port Data Input/Output
68
SCLK
SPI Port Clock
69
CSB
SPI Port Chip Select Bar
70
RESET
Reset, Active High
71
IRQ
Interrupt Request
72
AGND
Analog Common
73
IPTAT
Reference Current
74
VREF
Voltage Reference Output
75
I120
120 μA Reference Current
Pin No.
Mnemonic
76
AVDD33
77
AGND
78
AVDD33
79
AGND
80
AVDD33
81
AGND
82
AGND
83
OUT2_P
84
OUT2_N
85
AGND
86
AUX2_P
87
AUX2_N
88
AGND
89
AUX1_N
90
AUX1_P
91
AGND
92
OUT1_N
93
OUT1_P
94
AGND
95
AGND
96
AVDD33
97
AGND
98
AVDD33
99
AGND
100
AVDD33
1
The combined differential clock input at the CLK+ and CLK– pins are referred
to as DACCLK.
Rev. 0 | Page 11 of 56
AD9776/AD9778/AD9779
Description
3.3 V Analog Supply
Analog Common
3.3 V Analog Supply
Analog Common
3.3 V Analog Supply
Analog Common
Analog Common
Differential DAC Current Output,
Channel 2
Differential DAC Current Output,
Channel 2
Analog Common
Auxiliary DAC Voltage Output,
Channel 2
Auxiliary DAC Voltage Output,
Channel 2
Analog Common
Auxiliary DAC Voltage Output,
Channel 1
Auxiliary DAC Voltage Output,
Channel 1
Analog Common
Differential DAC Current Output,
Channel 1
Differential DAC Current Output,
Channel 1
Analog Common
Analog Common
3.3 V Analog Supply
Analog Common
3.3 V Analog Supply
Analog Common
3.3 V Analog Supply
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