3

Typical Applications Circuit

NOTE: Separate analog and digital grounds should be used, in which case the grounds should be tied together at a single point near the device.

The analog and digital grounds should be connected together by a thin single trace and never connected together by an inductor.

(IOUTA)

50

Ω

+5V OR +3V POWER SOURCE

1

µF

50

Ω

50

Ω

1.91k

Ω

FERRITE

10

µH

BEAD

1

2

3

4

5

6

7

8

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

9

10

11

12

13 14 15 16

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

ID5

ID4

ID3

ID2

ID1

ID0 (LSB)

QD6

QD7

QD8

QD9

QD10

QD11 (MSB)

SLEEP

AGND

(QOUTA)

(QOUTB)

50

Ω

50

Ω

QCOMP1

AGND

N.C.

DGND

N.C.

0.1

µF

0.1

µF

ICOMP1

0.1

µF

0.1

µF

ICOMP2

0.1

µF

0.1

µF

0.1

µF

QCOMP2

CLK

+

10

µF

1

µF

FERRITE

10

µH

BEAD

+

10

µF

0.1

µF

0.1

µF

0.1

µF

(IOUTB)

(DIGITAL POWER PLANE)

(ANALOG POWER PLANE)

QD4

QD5

HI5828