© National Instruments
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3-17
The following figure illustrates the clocking circuitry on the NI-7935R.
Figure 3-15.
NI-7935R Clocking Diagram
Memory
Controller
PLL
40 MHz
100 MHz
100
MHz
10 MHz
Reference Clock
Kintex-7 FPGA
200 MHz
DRAM
Clock
166 MHz
MGT
O
s
cill
a
tor
MGT
Ref
Clk
156.25 MHz/
3
12.5 MHz
Fre
qu
ency
S
elect
Ad
a
pter
Mod
u
le
PLL
100 MHz
O
s
cill
a
tor
REF IN
Ref Clk En
ab
le
IoMod
S
yncClock