Altera 100G Development Kit, Stratix IV GT Edition Manual de usuario Pagina 35

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Chapter 2: Board Components 2–27
Clock Circuitry
September 2010 Altera Corporation 100G Development Kit, Stratix IV GT Edition Reference Manual
U22.22 DDR3 PLL clock D DDR3_CLKD_N
LVDS
P23
U56.9 QDR II PLL clock A QDR2_CLKA_P AK21
U56.10 QDR II PLL clock A QDR2_CLKA_N AL22
U56.13 QDR II PLL clock B QDR2_CLKB_P AJ22
U56.14 QDR II PLL clock B QDR2_CLKB_N AK22
U56.17 QDR II PLL clock C QDR2_CLKC_P AJ24
U56.18 QDR II PLL clock C QDR2_CLKC_N AK23
U56.21 QDR II PLL clock D QDR2_CLKD_P AK24
U56.22 QDR II PLL clock D QDR2_CLKD_N AL25
U18.4 SMA input for differential clock buffer B SMA_DIFF_CLKIN_P1 —J19.1
U18.5 SMA input for differential clock buffer B SMA_DIFF_CLKIN_N1 —J26.1
U18.15 Differential clock buffer B to FPGA
fabric
BUFFB3_SE_CLK_P —J17.5
U18.14 Differential clock buffer B to FPGA
fabric
BUFFB3_SE_CLK_N —J17.6
U18.12 Differential clock buffer B to SMA BUFFB_CLK_P —J20.1
U18.11 Differential clock buffer B to SMA BUFFB_CLK_N —J27.1
U20.6 SMA input for reference clock buffer B REFCLK_OSC_P —J18.1
U20.7 SMA input for reference clock buffer B REFCLK_OSC_N —J25.1
U20.3 Reference clock buffer B to transceivers REFCLK_QL0_P BB2
U20.4 REFCLK_QL0_N BB1
U20.18 REFCLK_QL1_P AK2
U20.19 REFCLK_QL1_N AK1
U20.12 REFCLK_QL2_P V2
U20.13 REFCLK_QL2_N V1
U20.10 REFCLK_QL3_P F2
U20.11 REFCLK_QL3_N F1
U17.4 SMA input for single-ended clock buffer
B
SE_CLKINB_SMA
2.5-V
CMOS
—J14.1
U17.23 Single-ended clock buffer B SE_CLKB_L V7
U17.21 SE_CLKB_R AD39
U17.19 SE_CLKB_MAX U72.K6
U17.13 SE_CLKOUTB_SMA —J15.1
Table 2–14. Spread Spectrum Configuration DIP Switch Pin-Out (SW2) (Part 2 of 3)
Board
Reference Description
Schematic
Signal Name
I/O
Standard
Stratix IV
GT Device
Pin Name
Other
Connections
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