5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A A
RJ45 WITH MAGNETICS
Options (1)
Damping resistor.
(1) Options -For EMI reduction.
a. Apply Damping resistors.
(In our case, 33ohm was best for EMI reduction.)
b. Do not place power jack nearby RJ-45 connector.
c. Void power and ground planes under discrete magnetic components.
d. Use equal length differential MDI (Medium Dependent Interface) signal traces.
e. Use stable power source.
f. Use high quality CAT5E.
g. Use ferromagnetic bead between digital vdd and analog vdd.
(Impedance of between 100 and 2000 ohms at 100MHz is adequate.)
PMODE2
PMODE1
PMODE0
TXN
RXN
LINKLED
ACTLED
EXRES1
TOCAP
TXP
1V2O
TXP
SCLK
MISO
MOSI
SCSn
XI
XO
LINKLED
ACTLED
RSTn
INTn
INTn
RSTn
MISO
MOSI
SCLK
SCSn
TXN
RXN
RXP
RXP
MOSI
MISO
SCLK
SCSn
INTn
RSTn
GND
3V3D 3V3A
GND
3V3A
GND
GND
GND
GNDGND CGNDGND
3V3D
CGND
GND
3V3A
GND
GND
GND
GND
GND
3V3D
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W5500-Ref-RJ45WithMag
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2 2Monday, October 27, 2017
Title
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W5500-Ref-RJ45WithMag
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W5500-Ref-RJ45WithMag
C
2 2
R8 330R
C5
0.1uF
R6
49R9 1%
Y1
25MHz
1
2
3
4
R23
0R
C16
1nF/2kV
C15
10nF
R9 330R
C6
0.1uF
R24
0R
C12
0.1uF
R7
49R9 1%
R10
12.4k 1%
R3
10R 1%
P1
HRW5500RE
TD+
1
TCT
4
TD-
2
RD+
3
RCT
5
RD-
6
NC
7
GHs_GND
8
YLW+
12
YLW-
11
GRN-
10
GRN+
9
CH_GND1
13
CH_GND2
14
MH1
15
MH2
16
C1
0.1uF
C13
18pF
U1
W5500
TXN
1
TXP
2
AGND
3
AVDD
4
RXN
5
RXP
6
DNC
7
AVDD
8
AGND
9
EXRES1
10
AVDD
11
NC
12
NC
13
AGND
14
AVDD
15
AGND
16
AVDD
17
VBG
18
AGND
19
TOCAP
20
AVDD
21
1V2O
22
RSVD
23
SPDLED
24
LINKLED
25
DUPLED
26
ACTLED
27
VDD
28
GND
29
XI/CLKIN
30
XO
31
SCSn
32
SCLK
33
MISO
34
MOSI
35
INTn
36
RSTn
37
RSVD
38
RSVD
39
RSVD
40
RSVD
41
RSVD
42
PMODE2
43
PMODE1
44
PMODE0
45
NC
46
NC
47
AGND
48
C11
10uF/16V
C9 6.8nF
R2
49R9 1%
R5
0R
C2
0.1uF
C17
10nF
C14
18pF
C18
4.7uF
L1
HH-1M1608-121JT
C10 6.8nF
R21
0R
R1
49R9 1%
C3
0.1uF
C8
22nF
R4 1M
C7
10uF/16V
R22
0R
C4
0.1uF
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