Clock - Alinx AX7102 User Manual

GTP Transceiver
Operation Temperate
FPGA Power Supply
Artix-7 FPGA has six power supplies including V
V and V
MGTAVCC MGTAVTT
connected to +1.0V. V
should be connected to +1.0V. V
be connected to +1.8V. V
FPGA bank35 is connected to the DDR3, the V
+1.5V. V of Bank15 and Bank16 is power from a LDO chipset, so the voltage
CCO
of these two bank can be changed if we use different LDO chipset. V
the power supply of GTP transceiver, it should be connected to +1.0V. V
terminal power supply of the GTP transceiver, and should be connected to the
+1.2V.
The Artix-7 FPGA has the Power-On/Off Power supply sequencing, the
recommended power-on sequence is V
minimum current draw and ensure that the I/Os are 3-stated at power-on. The
recommended power-off sequence is the reverse of the power-on.
(三) CLOCK
AC7100 core board is equipped with two Sitime differential crystal oscillators ,
one is 200Mhz differential crystal oscillator for FPGA system clock, another is
148.5Mhz differential crystal oscillator for GTP transceiver.
1). 200Mhz Differential Crystal Oscillator
The Figure 2-3-1 is the circuit of 200Mhz system clock, the output of differential
crystal oscillator is connected to global clock pin MRCC (R4 and T4) of FPGA.
11 / 59
CMTs
PCIe Gen2
XADC
Speed
. V is the core power supply of FPGA and should be
CCINT
is power supply of FPGA Block RAM and also
CCBRAM
CCAUX
is each BANK power supply, because the IOs of
CCO
AX7102 User Manual
1 个 12bit, 1Mbps AD
4 个，6.6Gb/s max
-40 ~ 85degree
, V
CCINT CCBRAM
is FPGA auxiliary power supply and should
voltage of bank35 should be
CCO
, V V
CCINT CCBRAM, CCAUX
Http://www.alinx.com.cn
6
1
-2
, V , V ,
CCAUX CCO
MGTAVCC
MGTAVTT
, and V to achieve
CCO
is
is