DM8203E Datasheet, PDF (1/1 Pages) Davicom Semiconductor, Inc. – DM8203E_EVB circuit for DM8203-E5

5
4
3
2
1
DVDD_33V
DVDD_18V
DVDD_5V
DVDD_33V
J7 on is P2 force link mode (100Mbus FULL mode)
U6 AP1117-3.3V
DVDD_33V DVDD_33V
J8 on is P2 fix mode (100Mbps mode)
I _IN
OUT ^O
J9, J10 on is P2 use Reverse-MII mode
C1
C2
220uF 0.1uF
C3
C4
C5
0.1uF 0.1uF 0.1uF
C6
C7
220uF 0.1uF
D AVDD_33V
AVDD_18V
OUT ⁴
C31
C32
220uF
0.1uF
D5
R22
1N4148
10K
DVDD_33V
U7
RESET_IC_(AP1701DW)
R50
J11 on is P2 use RMII mode
J5 on is use EEPROM
PWRST#
SW1
TXE2
EECK
J7 ₁
J8 1
2 ^{JUMPER R23}
2 ^{JUMPER R24}
DVDD_33V
4.7k
4.7k
D
C12
C13
C14
220uF 0.1uF 0.1uF
C15
C16
C17
220uF 0.1uF 0.1uF
LNK0_LED
SPD0_LED
LNK1_LED
SPD1_LED
C ^D2
C ^D4
C ^D1
LEDA
C ^D3
LEDA
LEDA
LEDA
R1 330
4
5
3
6
2
7
1
8
C30
0
power on reset
10uF
(select one
use)
Port 0 fix FX mode
Port 1 fix FX mode
TXD2_2
TXC2
TXD2_3
EECS
TXER2
J9 ₁
J10 ₁
J11 ₁
R27
R28
2 ^JUMPER
2 ^JUMPER
2 ^JUMPER
NC(4.7k)
NC(4.7k)
R25
4.7k
RXC2
R26
4.7k
TXD2_0
R29
NC(4.7k)
DVDD_33V
L1
AVDD_33V
J5
JUMPER
EEPROM ^DVDD_33V
U2
Disable Port 2 MDIO pull Low, TXE2 float (J7 off).
TXD2_1
R30
NC(4.7k)
F.B/120/SO805
VCNTL
2SB1386
B
E
Q1
C ^DVDD_18V
L2
AVDD_18V
F.B/120/SO805
C21
C22
EECS
1
2
EECK
EEDIO
R13 10K
1
2
3
4
CS VCC
SK DC
DI ORG
DO GND
8
7
6
5
93LC46
Y1
X1
1
2
X2
C19
0.1uF
RX0-
RX0+
TX0-
TX0+
AVDD_18V
U1
1
2
3
4
5
6
7
8
RD-
NC
RD+
NC
CT
TD-
NC
TD+
Enable pot 2, please remove MDIO pull Low resister _MDIO
(R51)
R51
4.7k
RX+
NC
RX-
MCT
NC
TX+
NC
TX-
16
15
14
13
12
11
10
9
JP1 RJ-45_LED
1
2
3
4
5
6
7
TXD2_0
TXD2_1
RXER2
R52
4.7k
R53
4.7k
R31
4.7k
JP6
DC-JACK
DVDD_5V
1
C
0.1uF
0.1uF L3
25MHz/49US
MAGCOM_HS9024
8
C
C27
C28
R4
R5
R6
R7
F.B/120/SO805
22pF 22pF
49.9/1%
49.9/14%9.9/1%
49.9/1%
R8 R9 R10
75/1% 75/1% 75/1%
C8
1.4K/1%
R14
C9
C10
C11
0.1uF
0.1uF
0.1uF
0.01uF/2KV
RJ45_SPD R11 512
JP3 HEADER_16X2
DVDD_33V DVDD_5V
AVDD_33V AVDD_18V
DVDD_18DVVDD_33V
RJ45_LINK R12 512
VREF
U3A
74HC04
C29
C18
0.1uF
SPD0_LED
1
2
U3B
0.1uF
U5
LNK0_LED
3
4
C20
JP5
B
VCNTL
VREF
X1
X2
LNK1_LED
SPD1_LED
LNK0_LED
SPD0_LED
SMI_CK
SMI_DIO
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
VCNTL
VREF
DVDD33
X1
X2
DGND
LNK1_LED
SPD1_LED
LNK0_LED
SPD0_LED
TEST2
SMI_CK
DVDD18
SMI_DIO
TEST3
DGND
DM8203E
3 Port
switch
TEST1
DGND
PWRST#
EECS
EECK
EEDIO
DVDD33
RXD2_0
RXD2_1
DGND
RXD2_2
RXD2_3
RXDV2
RXC2
RXER2
COL2
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
DM8203E
A
PWRST#
EECS
EECK
EEDIO
RXD2_0
RXD2_1
RXD2_2
RXD2_3
RXDV2
RXC2
RXER2
COL2
74HC04
C24
0.1uF
RX1- R46
0
RX1+ R47
0
TX1- R48
0
TX1+ R49
0
R15
R16
49.9/1%
TP_RX-
TP_RX+
TP_TX-
TP_TX+
R17
49.9/1%
AVDD_18V
U4
1
2
3
4
5
6
7
8
RD-
NC
RD+
NC
CT
TD-
NC
TD+
RX-
NC
RX+
MCT
NC
TX-
NC
TX+
16
15
14
13
12
11
10
9
MAGCOM_HS9016
R18
49.9/1%
49.9/1%
R19 R20 R21
75/1% 75/1% 75/1%
C23
C25
0.1uF
C26
0.1uF
0.01uF/2KV
0.1uF
JP2
8
7
6
5
4
3
2
1
RJ-45
FX_SD ₁
DVDD_33V
B
FX_SD_TEST
R32
R33
127/1% 127/1%
R34
R35
127/1%69/1%
R36
69/1%
RX1+ R37
RX1- R38
0 FX_RX+
0 FX_RX-
FX_SD
TX1- R39
TX1+ R40
0 FX_TX-
0 FX_TX+
R41
R42
83/1% 83/1%
R43
R44
83/1% 182/1%
R45
182/1%
JP4
1
2
3
4
5
6
7
8
9
Fiber_3.3v
A
DAVICOM Semiconductor Inc.
Title
DM8203E_EVB circuit for DM8203-E5
Size Document Number
B DM8203E EVB
Rev
V1.0
Date:
Tuesday, August 26, 2008
Sheet
1
of 1
5
4
3
2
1