AD9726

Rev. B | Page 9 of 24

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

2

REXT

3

CLKVDD

4

CLKGND

7

CLKGND

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 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61

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 Drive1

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