FACTORY TRIMMING AND CALIBRATION Figure 26. PCB L" />
參數(shù)資料
型號： KIT908EINTFC
廠商： Freescale Semiconductor
文件頁數(shù)： 37/49頁
文件大?。?/td> 0K
描述： KIT EVAL 908E625 QUAD W/MCU/LIN
標準包裝： 1
Analog Integrated Circuit Device Data
42
Freescale Semiconductor
908E625
TYPICAL APPLICATIONS
FACTORY TRIMMING AND CALIBRATION
Figure 26. PCB Layout Recommendations
.
Table 13. Component Value Recommendation
Component
Recommended Value(1)
Comments / Signal routing
D1
reverse battery protection
C1
Bulk Capacitor
C2
100nF, SMD Ceramic, Low ESR
Close (<5mm) to VSUP1, VSUP2 pins with good ground return
C3
100nF, SMD Ceramic, Low ESR
Close (<3mm) to digital supply pins (EVDD, EVSS) with good ground
return.
The positive analog (VREFH, VDDA) and the digital (EVDD) supply
should be connected right at the C3.
C4
4,7uF, SMD Ceramic, Low ESR
Bulk Capacitor
C5
180pF, SMD Ceramic, Low ESR
Close (<5.0 mm) to LIN pin.
Total Capacitance on LIN has to be below 220 pF.
(Ctotal = CLIN-Pin + C5 + CVaristor ~ 10 pF + 180 pF + 15 pF)
V1(2)
Varistor Type TDK AVR-M1608C270MBAAB
Optional (close to LIN connector)
SMD Ferrite Bead Type TDK MMZ2012Y202B
Optional, (close to LIN connector)
Notes
1.
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.
2.
Components are recommended to improve EMC and ESD performance.
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
908E625
LIN
VBAT
GND1
GND2
VSUP2
VSUP3
GND
C1
L1
EVDD
EVSS
VDDA
VSSA
VDD
VSS
VSUP1
LIN
VREFH
VREFL
NC
C5
C4
C3
V1
D1
C2
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