ML6651
25
November 2001
User’s Guide
APPENDIX C: FULL SIZE BOARD REV. CMT WITH MT-RJ MODULE
4
5
6
A
B
C
D
6
5
4
Title
Revision
Size
B
R8
1.4K
R9
5K
R22
49.9
8
AD4_LIW
J2
J9
J10
VCC3D
J4
J13
J14
PECL_TP
J5
J15
J16
PECL_QU
C9
0.1
R57
2.0K
R58
1.4K
VCCRX2
C13
0.1
C14
0.1
GNDFC_L
D7
VCC3D
R62
150
D12
R68
511
66
0
ExtClkin
89
K
ML6651 EVAL BOARD SCHEMATIC (MT-RJ on right)
C48
0.1
C49
0.1
C50
0.1
R10
20K
R11
20K
R12
20K
J20
J30
J31
J32
CMT
CL
23
WN#
24
LEX
25
FC
26
ED
27
DFC
28
FO
29
OS
30
CQ
31
NN
32
NP
33
(edge-mount SMA)
12 Planes on PCB, Digital: 5v & 3.3v. Analog: 9 pin
modules need 5v TX & RX (both sides), and the DUT
needs 5 analog planes; T, E, L, FC & BQ. RJ45 + half
magnetics on isolated & no inner planes. Each plane
has separate bead (vcc & gnd) and filter caps.
Digital Gnds share same gnd plane.
For 5v PMD; R58=1.3K, R57=3.7K
For 3.3v PMD; R58=1.3K, R57=2K
"L" & "FC" planes are combined into FC_L plane.
NOTE 1: D1-5 & R21 may not be needed.
ND
GNDBQ
DGND
GNDRX2
DGND
VCC
OUT
3
N/C
GND
2
Oscillator
U4
25MHz
VCCFC_L
VCCBQ
GNDBQ
1
J6
DGND
VCC3D
1
J18
1
J17
VCC3D
VCC3D
R101
475
C115
0.1
C107
.01
C108
.01
R104
1.6K
C15
0.1
GNDFC_L
R112
75
R111
75
VCCFC_L
R103 1K
C113
0.1
C114
0.1
C109
0.1
GNDRX2
+ C103
10uF
C101
0.1 L103
L101
VCCRX2
C110
0.1
GNDTX2
+ C104
10uF
C102
0.1 L104
L102
VCCTX2
VCC5D DGND
RD*
BNC
RD
BNC
TD*
BNC
TD
BNC
C112
0.1
R102
475
VCCTX2
C105
0.1
Very Short Length!
(line to caps)
Very Short Length!
(line to caps)
R105
130
R106 82
R107
130
VCCRX2
R108 82
C106
0.1
VCCRX2
3.3v
VCCTX2
GNDRX2
GNDTX2
GNDRX2
GNDRX2 GNDRX2
GNDTX2
GNDTX2
GNDTX2
DGND
DGND
R28
82
R27
130
VCCRX2
GNDRX2
+
C204
10uF
C202
0.1
+
C203
10uF
C201
0.1
C8
0.1
VCCBQ
3.3v
5
4
1
2
3
6
7
8
9 10
OPMOD2
MT-RJ
N/C
VeeRX
VccRX
SD
RD-
RD+
VccTX
VeeTX
TD+
TD-