Microchip Technology DM320008, Руководство пользователя

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PIC3
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70005311A
-page 40

2017 Microc
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T
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In
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FIGURE A-13: LAN8740 PHY DAUGHTER CARD
Titl Titl
RXD1
RXD0
RX_ER
MDIO
MDC
TX_EN
TXD0
TXD1
CRS_DV
nRST
+3.3V
CLK_IN
0.1uF
C6
nINT
VD
D2
A
1
LED2/nINT/nPME/nINTSEL
2
LED1/nINT/nPME/REGOFF
3
XTAL2
4
XTAL1/CLKIN
5
VD
DC
R
6
RXCLK/PHYAD1
7
RXD3/PHYAD2
8
RXD2/nPME/RMIISEL
9
RXD1/MODE1
10
RXD0/MODE0
11
VD
DI
O
12
RXER/RXD4/PHYAD0
13
CRS
14
COL/CRS_DV/MODE2
15
MDIO
16
MDC
17
nINT/TXER/TXD4
18
nRST
19
TXCLK
20
TXEN
21
TXD0
22
TXD1
23
TXD2
24
TXD3
25
RXDV
26
VD
D1
A
27
TXN
28
TXP
29
RXN
30
RXP
31
RBIAS
32
PA
D
33
V
D
D
2
A
LED2/nINT/nPME/nINTSEL
LED1/nINT/nPME/REGOFF
XTAL2
XTAL1/CLKIN
V
D
D
C
R
RXCLK/PHYAD1
RXD3/PHYAD2
RXD2/nPME/RMIISEL
RXD1/MODE1
RXD0/MODE0
V
D
D
IO
RXER/RXD4/PHYAD0
CRS
COL/CRS_DV/MODE2
MDIO
MDC
nINT/TXER/TXD4
nRST
TXCLK
TXEN
TXD0
TXD1
TXD2
TXD3
RXDV
V
D
D
1
A
TXN
TXP
RXN
RXP
RBIAS
P
A
D
U1
*SMSC LAN8740
RXD1
RXD0
RX_ER
MDIO
MDC
TX_EN
TXD0
TXD1
CRS_DV
nRST
CLK_IN nINT
LED_ACT
TXP
TXN
RXP
RXN
LED_LINK
49.9R
R17
49.9R
R18
49.9R
R19
49.9R
R20
249R
R21
249R
R22
12pF
C10
12pF
C11
12pF
C12
12pF
C13
For EMI Purposes
(DNP)
VDDA
0.022uF
C14
0R
R23
EGND
EGND
EGND
Create EGND copper pour
around RJ-45 Conn
VDDA
J3011G21DNL
2
12
8
4
11
1
7
6
NC
9
10
3
5
SHIELD
14
SHIELD
13
J7
J6
J4
J3
J1
J5
J8
J2
4X
7
5
ê
Yel
Grn
1000pF 2KV
J2
TXN
TXP
RXP
RXN
TX_P
TX_N
RX_N
RX_P
LED_ACT
LED_LINK
12.1k
R15
1.0uF
C3
1.0uF
C7
0.1uF
C4
0.1uF
C5
FB1
VDDA +3.3V
1.0uF
C1
0.1uF
C2
+3.3V
10K
R5
10K
R16
+3.3V
1.5K
R7
4.7K
R1
4.7K
R2
4.7K
R3
MODE[2:0] = 111
Default
+3.3V
RMII
EN
4.7K
R6
4.7K
R4
4.7K
R8
PHYAD[2:0] = 000
Default
REGOFF=0
(Regulator ON)
1.0uF
C8
470pF
C9
CLK_IN
33R R12
33R R13
33R
R14
33R R11
Place close to U1
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
20
21
22
23
24
14
S9014E-12-ND
EG
ND
25
EG
ND
25
J1
2 HDR/DB
EGND
(DNP) R24