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Intel
®
LXD972M Transceiver Demo Board (Board Rev A1)
16 Preliminary User’s Guide
Document Number: 303125
Revision Number: 002
Revision Date: October 22, 2004
Figure 4. Schematic: Intel
®
LXD972M Transceiver Demo Board Power Control
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
POWER
IN
JTAG PORT
LXT972M: 3.3V
X=DO NOT INSTALL
LXT972M: R73
AND C53 ARE
NOT POPULATED
LXT972M: 2.5V/3.3V
LXT972M: 3.3V
GND
VCC
VCCIO
VCCD
Intel(R) LXD972M Transceiver Demo Board CONTROL/POWER
A1
LXD972M LQFP48C DV/DEMO
Intel Corporation
9750 Goethe Road
Sacramento, CA 95827
B
25Monday, September 20, 2004
Title
Size Document Number Rev
Date: Sheet
of
MDIO
MDC
ADDR0
RESET
ADDR1
VCCA
TDI
TRST
TCK
TMS
TDO
MDIO
MDC
VCCA
MDIO_1
MDC_1
GND
VCC
GNDGND
GND
GND
GND
VCC
GND
GND
VCC
GND
GND GND
GND
GND
GND
GND
GND
VCC
VCCIO
VCCIO
VCCD
VCCIO
VCCD
VCCIO
GND
VCCD
VCCIO VCCD
GND
BN2
1
SW1
SW DIP-4
1
2
3
4
8
7
6
5
R83 50 1%
C4
.001uF
+
C57
100uF
JP18
HEADER 3X2
12
34
56
J2
RJ11
1
2
3
4
5
6
JP17
HEADER 3_1
1
2
3
+
C36
100uF
U2A
LXT972M_LQFP48C
38
13
39
6
29
16
4 2
32
31
5
3
24
25
9
30
12
7
8
11
10
23
22
21
20
19
GNDD
GNDA
VCCD
VCCIO
VCCIO
VCCA
RESET REFCLK/XI
MDC
MDIO
GNDIO
XO
CE/TEST0
GNDIO/TEST1
GNDIO
GNDIO
RBIAS
NC
NC
ADDR1
ADDR0
TRST
TCK
TMS
TDO
TDI
C6
0.1uF
+
C54
10uF
TP39
1
C33
18pF 25V
Y1
25MHz
C53X
R82
X
R66
4.7k
R61
4.7k
U5A
74LVX14
1 2
C51
0.1uF
R62
4.7k
R73
X
R67
10K
+
C55
100uF
S2
RESET
+
C34
10uF
TP34
1
C3
0.1uF
C7
.001uF
TP36
1
TP40
1
R69
22.1K 1%
JP12
2-pin
C52
.001uF
C10
0.1uF
U5B
74LVX14
3 4
R65
100K
JP14
HEADER 4X2
12
34
56
78
BN3
1
+
C31
10uF
R60
4.7k
JP16
HEADER 3_1
1
2
3
D2
LED
R72
220
JP19
2-pin
D1
1N914
BN1
1
+
C56
10uF
TP35
1
R58
4.7k
BN4
1
C32
18pF 25V
FB4
FERRITE
R68
100
C12
.001uF
XIN