W5500独立变压器参考电路.pdf
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2019-10-15
09:26:02
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5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A A
(1) Options
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.)
EXRES1
TOCAP
1V2O
SCLK
MISO
MOSI
SCSn
XI
XO
LINKLED
ACTLED
RSTn
INTn
INTn
RSTn
MISO
MOSI
SCLK
SCSn
PMODE2
PMODE1
PMODE0
RXN
TXN
TXP
RXP
WIDE
ACTLED
LINKLED
TXN
TXP
RXN
RXP
MOSI
MISO
SCLK
SCSn
INTn
RSTn
GND
3V3A
GND
GND
GND
GNDGND
GND
GND
GND
GND
3V3D
GND
3V3D
3V3A
GND
3V3A
GND
CGND
CGNDGND
3V3D
CGND
Title
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W5500-Ref-ExternalMag
C
1 2
Title
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W5500-Ref-ExternalMag
C
1 2
Title
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W5500-Ref-ExternalMag
C
1 2
R14 49R9 1%
C5
0.1uF
R10
12.4k 1%
R1
49R9 1%
C4
0.1uF
C19
4.7nF/2kV
R2
49R9 1%
R18 49R9 1%
C3
0.1uF
R3
10R 1%
C2
0.1uF
R11 75R 1%
R12 75R 1%
C8
22nF
C1
0.1uF
C16
1nF/2kV
C7
10uF/16V
P1
5631-S-K-F-L-8C
TD+
1
TD-
2
RX+
3
NC1
4
NC2
5
RX-
6
NC3
7
NC4
8
YLW_A
9
YLW_C
10
GRN_A
11
GRN_C
12
MH1
13
MH2
14
CHA1
15
CHA2
16
C10 6.8nF
R19 49R9 1%
T1
HRW5500TE
TD+
1
CT1
2
TD-
3
NC1
4
NC2
5
RD+
6
CT2
7
RD-
8
RX-
9
CT3
10
RX+
11
NC3
12
NC4
13
TX-
14
CT4
15
TX+
16
C15
10nF
Y1
25MHz
1
2
3
4
R17
150R 1%
R5
0R
C18
4.7uF
C17
10nF
R24
0R
R7
82R 1%
C14
18pF
R23
0R
R16
150R 1%
R6
82R 1%
C13
18pF
R22
0R
R8 330R
C12
0.1uF
R13 49R9 1%
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
C9 6.8nF
R21
0R
R4 1M
R20 49R9 1%
C11
10uF/16V
L1
HH-1M1608-121JT
C6
0.1uF
R9 330R
R15 49R9 1%
Monday, October 27, 2017
资源评论
a864020102020-04-16这个原理图还不错，把W5500外围电路介绍的很清楚
名字真俗
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