Analog Integrated Circuit Device Data

34

Freescale Semiconductor

908E624

TYPICAL APPLICATIONS

Figure 21. PCB Layout Recommendations

.

EVDD

1

2

4

3

5

6

7

8

9

11

10

12

13

14

15

16

18

17

19

20

21

22

23

25

24

26

27

54

53

51

52

50

49

48

47

46

44

45

43

42

41

40

39

37

38

36

35

34

33

32

30

31

29

28

EVSS

VDDA

VSSA

VREFL

VDD

GND

AGND

VSUP1

VSUP2

C4

VREFH

908E624

LIN

L1

D1

C5

LIN

VBAT

NC

Comment:

Terminal 32 NC - used for signal routing

Table 15. Component Value Recommendation

Component

Recommended Value(37)

Comments / Signal routing

D1

Reverse battery protection

C1

Bulk Capacitor

C2

100 nF, SMD Ceramic

Close (<5 mm) to VSUP1, VSUP2 terminals with good ground return

C3

100 nF, SMD Ceramic

Close (<3 mm) to digital supply terminals (EVDD, EVSS) with good

ground return.

The positive analog (VREFH, VDDA) and the digital (EVDD) supply

should be connected right at the C3.

C4

4.7

μF, SMD Ceramic or Low ESR

Bulk Capacitor

C5

180 pF, SMD Ceramic

Close (<5 mm) to LIN terminal.

Total Capacitance per LIN node has to be below 220 pF.

V1(38)

Varistor Type TDK AVR-M1608C270MBAAB

Optional (close to LIN connector)

L1(38)

SMD Ferrite Bead Type TDK MMZ2012Y202B

Optional, (close to LIN connector)

Notes

37.

Freescale does not assume liability, endorse, or want components from external manufactures that are referenced in circuit drawings

or tables. While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their

application.

38.

Components are recommended to improve EMC and ESD performance.