25
ECP5 Versa Development Board
Figure 18. Reference Clock Generator
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Place bypass caps close to output bank
supply pins.
REFCLKP_D0
REFCLKN_D0VCCO
PCIE_CLKP
PCIE_CLKN
CLK_RESETn
CLK_LOCK1
CLK_VCC
CLK_SCL
CLK_SDA
VCCO
ispCLOCK_TDI
ispCLOCK_TDO
FTDI_TMS
FTDI_TCK
CLK_SDA
156MHz_VREF
156MHz_EN
156MHz
156MHz
156MHz_VREF
PCLKC0
PCLKT0
EXPCON_OSC
REFCLKP_D1
REFCLKN_D1
CLK_SCL
CLK_VCC
3_3V
3_3V
3_3V
3_3V
CLK_VCC
REFCLKP_D0 [4]
REFCLKN_D0 [4]
SDA[3]
SCL[3]
PCIE_CLKP[4]
PCIE_CLKN[4]
PRSNT[4]
156MHz_EN [3]
PCLKT0 [7]
PCLKC0 [7]
EXPCON_OSC [10]
CLK_RESETn[3]
REFCLKP_D1 [4]
REFCLKN_D1 [4]
FTDI_TMS[3]
FTDI_TCK[3]
ispCLOCK_TDI[3]
ispCLOCK_TDO[3]
Date:
Size
Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: techsupport@Latticesemi.com
Board Rev
Project
B
B
119
REF CLOCK GEN
ECP5 VERSA Eval Board
B
Friday, August 21, 2015
Date:
Size
Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: techsupport@Latticesemi.com
Board Rev
Project
B
B
119
REF CLOCK GEN
ECP5 VERSA Eval Board
B
Friday, August 21, 2015
Date:
Size
Schematic Rev
ofSheet
Title
Lattice Semiconductor Applications
Email: techsupport@Latticesemi.com
Board Rev
Project
B
B
119
REF CLOCK GEN
ECP5 VERSA Eval Board
B
Friday, August 21, 2015
R158
10R-0402SMTDI
R162
4_7K-0402SMT
C228
10NF-0603SMT
DI
C231
100NF-0603SMT
DI
R180
4_7K-0402SMT
DI
C236
10NF-0603SMT
DI
R183
10R-0402SMTDI
R170 0R-0603SMT
R166
220R-0402SMT
DI
C234
10NF-0603SMT
DI
X2
156.25MHz_LVCMOS
VCC
6
GND
3
OUTP
4
EN
1
NC1
2
NC2
5
PAD
7
R163
680R-0402SMT
C229
6.8UF-TAN-0805SMT
6V
TANT
DI
U13
ispCLOCK5406D
DI
USER3
45
USER2
46
USER1
47
USER0
48
VCCJ
37
TDO
38
TMS
39
TCK
40
TDI
41
RESETb
42
VCCO_0
33
BANK_0P
35
BANK_0N
34
GNDO_0
36
VCCO_1
32
GNDO_1
29
BANK_1P
31
BANK_1N
30
VCCO_2
25
GNDO_2
28
BANK_2P
27
BANK_2N
26
VCCO_3
12
GNDO_3
9
BANK_3P
10
BANK_3N
11
VCCO_4
5
GNDO_4
8
BANK_4P
6
BANK_4N
7
VCCO_5
4
GNDO_5
1
BANK_5P
2
BANK_5N
3
REFAP
16
REFAN
15
REFAVTT
14
REFBP
19
REFBN
18
REFBVTT
17
RREF
24
FBKP
22
FBKN
21
FBKVTT
20
GNDD
43
GNDA
13
VCCD
44
VCCA
23
DIE_PAD
49
C227
100NF-0603SMT
DI
R168
10R-0402SMTDI
R165
10R-0402SMTDI
R164
10R-0402SMTDI
J13
HEADER 3(DNP)
1
2
3
C233
100NF-0603SMT
DI
C232
100NF-0603SMT
DI
FB25
MPZ1608Y600B
DI
1
2
R181
4_7K-0402SMT
DI
R167
470R-0402SMT
DI
C235
560PF-0603SMT
DI
R159
220R-0402SMT
DI
R186
10R-0402SMTDI
D30
LED_GREEN_0603
R161
10R-0402SMTDI
R160
0R-0402SMT
R169 0R-0603SMT
FB24
MPZ1608Y600B
DI
1 2
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