Datasheet
AD9726
Rev. B | Page 9 of 24
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
04540-005
2
REXT
3
CLKVDD
4
C
LKGND
7
C
LKGND
6
CLK–
5
CLK+
1
CLKVDD
8
DGND
9
DVDD
10
DB15+
12
DB14+
13
DB14–
14
DB13+
15
DB13–
16
DB12+
17
DB12–
18
DB11+
19
DB11–
20
DBVDD
11
DB15–
59
58
57
54
55
56
60
53
52
REFIO
RESET
CSB
SDO (SYNCALRM)
SDIO
SCLK (SYNCUPD)
FSADJ
DGND
DVDD
51
DB0–
49
DB1–
48
DB1+
47
DB2–
46
DB2+
45
DB3–
44
DB3+
43
DB4–
42
DB4+
DBGND
41
50
DB0+
PIN 1
21
DBGND
22
DB10+
23
DB10–
24
DB9+
25
DB9–
26
DB8+
27
DB8–
28
DCLK_OUT+
29
DCLK_OUT–
30
DBVDD
31
DBGND
32
DCLK_IN+
33
DCLK_IN–
34
DB7+
35
DB7–
36
DB6+
37
DB6–
38
DB5+
39
DB5–
40
DBVDD
80
SPI_DIS
79
ADVDD
78
ADGND
77
ACVDD
76
ACGND
75
AVDD2
74
AGND2
73
AVDD1
72
AGND1
71
IOUTA
70
IOUTB
69
AGND1
68
AVDD1
67
AGND2
66
AVDD2
65
ACGND
64
ACVDD
63
ADGND
62
ADVDD
61
SDR_EN
AD9726
TOP VIEW
(Not to Scale)
NOTES
1. THE EXPOSED PAD SHOULD BE CONNECTED TO GROUND FOR ELECTRICAL AND THERMAL PURPOSES.
Figure 7. Pin Configuration
Table 7. Pin Function Descriptions
Pin
No. Mnemonic Description
1 CLKVDD Clock Supply Voltage
2 REXT Sets Data Clock Output Drive
1
3 CLKVDD Clock Supply Voltage
4 CLKGND Clock Supply Common
5 CLK+ DAC Clock Input True
6 CLK− DAC Clock Input Complement
7 CLKGND Clock Supply Common
8 DGND Digital Supply Common
9 DVDD Digital Supply Voltage
10 DB15+ Data Bit 15 True
11 DB15− Data Bit 15 Complement
12 DB14+ Data Bit 14 True
13 DB14− Data Bit 14 Complement
14 DB13+ Data Bit 13 True
15 DB13− Data Bit 13 Complement
16 DB12+ Data Bit 12 True
17 DB12− Data Bit 12 Complement
18 DB11+ Data Bit 11 True
19 DB11− Data Bit 11 Complement
20 DBVDD Data Bus Supply Voltage
21 DBGND Data Bus Supply Common
Pin
No. Mnemonic Description
22 DB10+ Data Bit 10 True
23 DB10− Data Bit 10 Complement
24 DB9+ Data Bit 9 True
25 DB9− Data Bit 9 Complement
26 DB8+ Data Bit 8 True
27 DB8− Data Bit 8 Complement
28 DCLK_OUT+ Data Clock Output True
29 DCLK_OUT− Data Clock Output Complement
30 DBVDD Data Bus Supply Voltage
31 DBGND Data Bus Supply Common
32 DCLK_IN+ Data Clock Input True
33 DCLK_IN− Data Clock Input Complement
34 DB7+ Data Bit 7 True
35 DB7− Data Bit 7 Complement
36 DB6+ Data Bit 6 True
37 DB6− Data Bit 6 Complement
38 DB5+ Data Bit 5 True
39 DB5− Data Bit 5 Complement
40 DBVDD Data Bus Supply Voltage
41 DBGND Data Bus Supply Common
42 DB4+ Data Bit 4 True