Circuit - Davicom Semiconductor Inc.

470 ohm
R1
VCC
place caps close
to U1 pins
Isolation Barrier. No Power under this area.
All these components and their traces should
not intersect other areas.
470 ohm
R2
VCC
D1
C1
C2
C3
C4
10uf
SMD-B
.1uf
.01uf
.1uf
470 ohm
R3
470 ohm
R4
VCC
470 ohm
R6
RJ45
J1
D2
75 1%
VCC
TPO5
TXERRLED#
52
51
7
6
5
75 1%
VCC
10K
GND
82
GND
83
GND
84
RESET#
85
VCC
86
C9
10uf
S1
87
88
SW PUSHBUTTON
SMD-B
89
90
91
GND
92
93
VCC
94
TX CKT POWER/GROUND AREA
95
BYPASS CAPACITOR FOR U1
96
98
.1uf
.01uf
99
Digital Ckt Power & Ground Area
Locate near U1's VCC & Ground Pins
Physically place caps on SOLDER
SIDE.
100
TXD1
RESET#
DVCC
DVCC
TXD2
TPMUX
TXD3
TPI0
TXD4
TPI1
DGND
DM9301F (TCO)
DGND
MUXCTL0
TPI3
MUXCTL1
CONFIGA
TPEN
DVCC
DVCC
CONFIGB
FXALPBK
FXDLPBK
TXALPBK
TXDLPBK
HLTNOLNK
DGND
DGND
AGND
AGND
AGND
AVCC
.1uf
GND
49.9 1%
.1uf
49
GND
48
GND
47
GND
46
VCC
45
GND
44
GND
43
GND
GND
TPRXI-
2
TPRXI+
1
10
6
11
5
12
4
13
3
14
2
15
1
16
9
GND
10
11
R10
12
13
75 1%
14
15
TPTXO-
16
TPTXO+
PE68515
VCC
42
GND
41
BPSCRAM
40
GND
39
GND
38
VCC
36
GND
35
GND
34
1
2
3
4
GND
Pop Table For :
GND
32
GND
31
VCC
3.3V
VCC J?
1
2
3
4
HLTNOLNK
33
Disable Scrambler
CON4
GND
37
J?
R19
R20
R21
R22
R23
R24
optic
U3
C10
C11
R25
R26
R12
R13
R27
R28
R29
R30
Halt If No Link
CON4
GND
OSC/XTL#
R13
30
X2
AGND
29
28
0 Ohm
R12
VCC
Y1
25M
L3
1uH
C14
18pF
62/ 69.8
R19
L4
1uH
C15
GND
R20
Load ONLY R12 OR R13
R12=+5V for HFBR Large Optic
R13=3.3V for Siemans V23812 Optic.
GND
GND
C13
18pF
49.9 1%
VCC
VCC
3.3V
0 Ohm
X2
OSC/X1
AVCC
PECLRXI+
PECLRXI-
PECLSD+
PECLSD+
PECLRXI+
PECLRXI-
PECLSD-
27
26
OSC/X1
25
24
23
PECLSD22
AVCC
PECLTXO+
PECLTXO-
AGND
AGND
20
21
VCC
GND
19
18
17
GND
PECLTXO-
R17
R16
49.9 1%
PECLTXO+
AVCC
AGND
16
GND
15
VCC
TPTXO+
TPTXO-
AGND
13
14
TPTXO+
TPTXO-
AVCC
AGND
11
10
12
GND
VCC
GND
BGRET
BGREF
9
8
AVCC
AGND
AGND
6
5
7
VCC
AVCC
R18
VCC
R15
49.9 1%
C12
BFRET
GND
6.49K 1%
.1uf
4
TPRXI+
C29
.01uf
GND
C28
.01uf
BFREF
.1uf
GND
C27
TPRXI+ 1
C26
3
GND
9
7
GND
R14
Place these components as
close to Optics as
possible.
5.0V
182
69.8
182
69.8
13.2K
127
FX1
In
In
In
127
127
out
0
83
83
19.8K
83
300
62
300
62
130
82
FX2
out
out
out
82
82
0
out
130
130
374
130
C16
GND
.1uf
300/ 182
C23
.1uf
.1uf
R21
GND
300/ 182
This node will be 3.3V or 5V
depending on strapping.
3.3V SOT-223
800ma
R22
62/ 69.8
HFBR5103T
FX2
GND
VCC_R
GND
Vout
3.3V
C10
2
PECLTXOVCC_T
GND
C11
U3
.1uf
10uf
SMD-B
GND
130/13.2K
82/ 127
R23
R25
82/ 127
GND
R26
82/127
C24
PECLRXI-
PECLRXI+
R24
PECLSD+
Vin
PECLSD-
3
PECLTXO+
PECLTXOVCC_T
VCC_R
PECLSD+
PECLRXIPECLRXI+
GND
.1uf
Load ONLY for 3.3V
Siemans V23812 Optics.
9
8
7
6
5
4
3
2
1
PECLTXO+
VCC_T
GND
VCC
1
.01uf
50
8
GND
place caps close
to U1 pins
C25
BPSCRAM
TPI2
VCC
.1uf
TRIDRV
AVCC
.01uf
TXD0
TPRXI-
.1uf
97
C22
FRCFXSD
TESTMODE
3
.01uF
C21
DGND
2
C19
C20
DGND
VCC
C17
C18
DVCC
TPRXI-
VCC
4
C8
81
C5
U2
8
R9
VCC
75 1%
U1
GND
R11
R7
.1uf /1KV
DVCC
DGND
R8
TXERRLED#
TPO4
GND
53
55
54
TPO5
DVCC
TPO4
TPO2
TPO3
TPO1
VCC
56
58
57
TPO3
TPO2
DGND
TPO0
GND
59
61
60
TPO1
TPO0
TXRCVLED#
TXLNKLED#
GND
TXRCVLED#
62
63
64
LED
D4
DGND
TXLNKLED#
VCC
GND
FXLNKLED#
TPO6
65
TPO6
DVCC
66
67
68
DGND
FXLNKLED#
FXRCVLED#
TXCLK
FXRCVLED#
RXCLK
D6
69
70
71
TXCLK
RXD3
RXD4
DGND
72
RXD4
73
GND
VCC
75
76
74
RXD3
GND
RXD1
RXD0
RXD2
RXD2
RXCLK
GND
D3
DVCC
FXERRLED#
SMD-B
C7
10uf
77
80
VCC
.1uf
RXD1
Ferrite Hi current
DGND
L2
C6
Power Jack
78
Ferrite Hi current
79
L1
RXD0
Plus 5 volt D.C. input
J2
470 ohm
R5
FXERRLED#
D5
1
2
3
4
5
6
7
8
Both LEDs in one package.
D2 is upper LED (TxLnk)
GND
R27
130/83
R28
130/ 83
GND
R29
374/19.8K
GND
9
8
7
6
5
4
3
2
1
VCC_R
PECLSD+
PECLRXI-
V23818-C8-V10
FX1
PECLRXI+
GND
R30
130 /83
GND
DAVICOM SEMICONDUCTOR, INC.
Title
9301 Media Converter
Size
Custom
Document Number
Date:
Monday, April 24, 2000
Rev
1.1
DM9301.DSN
Sheet
1
of
1