23
LatticeSC PCI Express x1
Lattice Semiconductor
Evaluation Board User’s Guide
Figure 10. Clocks
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
OSC_IN_1
OSC_IN_3
OSC_IN_4
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
3_3V
1_8V
3_3V
3_3V
REFCLKP_L
[8]
REFCLKN_L
[8]
OSC_IN_1
[2]
REFCLKP_R
[8]
REFCLKN_R
[8]
CLOCK_CTRL_R
[2]
CLOCK_CTRL_L
[2]
OSC_IN_3
[12]
OSC_IN_4
[12]
Title
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SC PCI EXPRESS Card
1.0
Clocks
C
71
4
Title
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a
D
of
SC PCI EXPRESS Card
1.0
Clocks
C
71
4
Title
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P
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D
of
SC PCI EXPRESS Card
1.0
Clocks
C
71
4
NOTE: PLACE
TERMINATIONS
CLOSE TO
DEVICE.
NOTE: PLACE
TERMINATIONS
CLOSE TO
DEVICE.
Oscillator
Control
Oscillator
Socket
SMT Oscillator
Oscillator
Control
Oscillator
Socket
SMT Oscillator
EXTERNAL CLK
INPUT
EXTERNAL CLK
INPUT
NOTE: PLACE
TERMINATIONS
CLOSE TO
DEVICE.
NOTE: PLACE
TERMINATIONS
CLOSE TO
DEVICE.
SEL0 SEL1 Q0/Q0# Q1/Q1#
L L B B
L H B A
H H A A
H L A B
*** Pin is Low when open/float
SEL0
SEL1
Q7
2N2222/SOT23
Q7
2N2222/SOT23
3
1
2
R143
82R-0603SMT
R143
82R-0603SMT
R115
130R-0603SMT
R115
130R-0603SMT
R134
82R-0603SMT
R134
82R-0603SMT
J21
HEADER 2X1
J21
HEADER 2X1
1
1
2
2
+
C194
100NF-0603SMT
+
C194
100NF-0603SMT
U29
PCA9306
U29
PCA9306
GND
1
VREF_LV
2
SIGA_LV
3
SIGB_LV
4
SIGB_HV
5
SIGA_HV
6
VREF_HV
7
EN
8
R118
82R-0603SMT
R118
82R-0603SMT
R283
OPEN-0603SMT
R283
OPEN-0603SMT
R128
1_6R-0603SMT
R128
1_6R-0603SMT
C196
10NF-0603SMT
C196
10NF-0603SMT
R138
130R-0603SMT
R138
130R-0603SMT
J23J23
1
2
3
4
5
R139
107R-0603SMT
R139
107R-0603SMT
R121
130R-0603SMT
R121
130R-0603SMT
C188
100NF-0603SMT
C188
100NF-0603SMT
C181
100NF-0603SMT
C181
100NF-0603SMT
R120
82R-0603SMT
R120
82R-0603SMT
R281
OPEN-0603SMT
R281
OPEN-0603SMT
Y1
110-93-314-41-001
Y1
110-93-314-41-001
Q_N
1
Q
8
VDD
14
GND
7
R124
270R-0603SMT
R124
270R-0603SMT
R280
200K-0603SMT
R280
200K-0603SMT
R127
82R-0603SMT
R127
82R-0603SMT
Y5
CW-P423F-312.5MHZ
Y5
CW-P423F-312.5MHZ
Q_N
5
Q
4
VCC
6
GND
3
DIS#
1
NC
2
R114
130R-0603SMT
R114
130R-0603SMT
R282
OPEN-0603SMT
R282
OPEN-0603SMT
C189
10NF-0603SMT
C189
10NF-0603SMT
MUX
U17B
MC100LVEL56
MUX
U17B
MC100LVEL56
D1A
6
D1A_N
7
VBB1
8
D1B
9
D1B_N
10
VEE
11
Q1_N
12
Q1
13
VCC
14
SEL1
15
J24J24
1
2
3
4
5
R123
107R-0603SMT
R123
107R-0603SMT
R122
130R-0603SMT
R122
130R-0603SMT
R131
130R-0603SMT
R131
130R-0603SMT
R116
130R-0603SMT
R116
130R-0603SMT
R278
OPEN-0603SMT
R278
OPEN-0603SMT
J19
HEADER 3x1
J19
HEADER 3x1
1
3
2
R125
82R-0603SMT
R125
82R-0603SMT
+
C182
10UF-16V_TANTBSMT
+
C182
10UF-16V_TANTBSMT
J28
JUMPER1
J28
JUMPER1
1
2
R135
82R-0603SMT
R135
82R-0603SMT
U18
CY2304-1
U18
CY2304-1
REF
1
CLKA1
2
CLKA2
3
GND
4
CLKB1
5
CLKB2
6
VDD
7
FBK
8
R284
OPEN-0603SMT
R284
OPEN-0603SMT
R112
1_6R-0603SMT
R112
1_6R-0603SMT
R279
OPEN-0603SMT
R279
OPEN-0603SMT
R132
130R-0603SMT
R132
130R-0603SMT
J25
JUMPER1
J25
JUMPER1
1
2
Y4
110-93-314-41-001
Y4
110-93-314-41-001
Q_N
1
Q
8
VDD
14
GND
7
Q6
2N2222/SOT23
Q6
2N2222/SOT23
3
1
2
C185
100NF-0603SMT
C185
100NF-0603SMT
R141
10K-0603SMT
R141
10K-0603SMT
C195
100NF-0603SMT
C195
100NF-0603SMT
R136
82R-0603SMT
R136
82R-0603SMT
R130
130R-0603SMT
R130
130R-0603SMT
J27
HEADER 2X1
J27
HEADER 2X1
1
1
2
2
C183
100NF-0603SMT
C183
100NF-0603SMT
MUX
U17A
MC100LVEL56
MUX
U17A
MC100LVEL56
D0A
1
D0A_N
2
VBB0
3
D0B
4
D0B_N
5
COM_SEL
16
SEL0
17
Q0_N
18
Q0
19
VCC
20
R129
130R-0603SMT
R129
130R-0603SMT
C190
100NF-0603SMT
C190
100NF-0603SMT
Y2
CW-P423F-312.5MHZ
Y2
CW-P423F-312.5MHZ
Q_N
5
Q
4
VCC
6
GND
3
DIS#
1
NC
2
+
C184
100NF-0603SMT
+
C184
100NF-0603SMT
J26
HEADER 3x1
J26
HEADER 3x1
1
3
2
Y3
CTS-CB3LV-3C-100.00MHZ
Y3
CTS-CB3LV-3C-100.00MHZ
N/C
1
GND
2
OUT
3
Vcc
4
R133
82R-0603SMT
R133
82R-0603SMT
J20
JUMPER1
J20
JUMPER1
1
2
R140
270R-0603SMT
R140
270R-0603SMT
R137
130R-0603SMT
R137
130R-0603SMT
R117
82R-0603SMT
R117
82R-0603SMT
+
C180
100NF-0603SMT
+
C180
100NF-0603SMT
C186
10NF-0603SMT
C186
10NF-0603SMT
C192
100NF-0603SMT
C192
100NF-0603SMT
J29J29
1
2
3
4
5
C187
100NF-0603SMT
C187
100NF-0603SMT
R119
82R-0603SMT
R119
82R-0603SMT
R142
82R-0603SMT
R142
82R-0603SMT
C500
100NF-0603SMT
C500
100NF-0603SMT
+
C191
100NF-0603SMT
+
C191
100NF-0603SMT
J30J30
1
2
3
4
5
R113
130R-0603SMT
R113
130R-0603SMT
+
C193
10UF-16V_TANTBSMT
+
C193
10UF-16V_TANTBSMT
R126
10K-0603SMT
R126
10K-0603SMT
J22
JUMPER1
J22
JUMPER1
1
2