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RabbitCore RCM4100
A.6 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-6. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.
Figure A-6. RCM4100 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 Technical Note 303,
Con-
formal Coatings
.
Conformally coated
area
R1
J1
R2
R5
R4
R3
JP1
JP2
JP9
JP6
JP7
JP3
JP5
JP4
C4
C3
C2
L1
C1
R7
R8
R6
R10
R9
U1
U2
R11
C15
RP2
C16
C17
D1
R27
RP1
R15
C23
R17 R16
C21
C14
U6
R19
R18
R22
R23
Y2
C27
U7
C28R21
JP8
JP10
JP1
1
JP12
C5
Y1
Q1
C6
C7
C8
C9
C10
C1
1
U5
C12
C13
R12
C24
R14
C25
C26
C19
C20
U4
U3
C18
R13
C30
C31
C34
C35
C32
C33
C29
C38
C39
C37
C36
Содержание RabbitCore RCM4100
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