参数资料
型号: 101-1226
厂商: Rabbit Semiconductor
文件页数: 150/168页
文件大小: 0K
描述: RCM3900 DEV KIT UNIVERSAL
标准包装: 1
系列: RabbitCore 3900
类型: MPU 模块
适用于相关产品: RCM3900
所含物品: RabbitCore 模块、开发板、交流适配器、缆线和 Dynamic C? 光盘
其它名称: 316-1137
RabbitCore RCM3900 User’s Manual
82
A.5 Conformal Coating
The areas around the 32 kHz real-time clock crystal oscillator have had the Dow Corning
silicone-based 1-2620 conformal coating applied. The conformally coated area is shown
in Figure A-5. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.
Figure A-5. RCM3900 Areas Receiving Conformal Coating
Any components in the conformally coated area may be replaced using standard soldering
procedures for surface-mounted components. A new conformal coating should then be
applied to offer continuing protection against the effects of moisture and contaminants.
NOTE: For more information on conformal coatings, refer to Rabbit’s Technical Note
303, Conformal Coatings in the online document suite.
Conformally coated
areas
U1
R1
R2
R15
C1
J1
U2
C2
R4
JP1
J2
R5
JP2 JP3 JP4 JP5
R3
Y1 C5
R7
R8
C7
C6
R11
U4
R9
U3
C3
R10
R6 C4
C8
C9 U5
C10
C11
C14
C15
C19
C18
R17
JP7
JP10
JP9
JP8
L1
J3
C22 C23
C27
C33
L2
C35
C12
C16
C20 C21
C24
C13
C17
C25
U6
C28
R18
C37
C29
Y2
R12
R13
R14
C31
C30
R16
C32
C26
C34
C36
R19
U7
R20
R21
C39
C38
R23
R24
R25 R26
1
C44
2
U8
C43
C49 C50
JP12
JP1
1
C41
C42
JP13
R27
Y3
R22
C40
JP14
C46
U9
C45
R29
R28
R30
Q1
R33
DS1
R34
R35
DS2
DS3
SPD
LNK ACT
FDX COL
BSY
CE
DS4
R32
RCM39XX
D1
U10
Q2
C47
C48
R31
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