Fpga - Alinx AX301 User Manual

AX301 User Manual
J1
SW1
F1
USB POWER
U6
PORT
2.5V
AMS1117-
FUSE
2.5
SWITCH
U1
3.3V
AMS1117-
3.3
U5
AMS1117-
1.2V
1.2V
Figure 2-1
The development board is powered by USB and generates three power supplies of +3.3V,
+2.5V, and +1.2V through the 3 LDO power chip, respectively, to meet the BANK voltage
and core voltage of the FPGA.
When designing the PCB, we use a 4-layer PCB, leaving an independent GND plane,
which allows the entire development board to have a complete ground plane, ensuring that
the development board has very good stability. On the PCB, we set aside test points for
each power supply so that the user can confirm the voltage on the board.

3. FPGA

The FPGA model is EP4CE6F17C8, which belongs to ALTERA Cyclone IV. This model is
BGA package, 256 pins. The pin names are in the form of letter + number, such as E3, G3,
etc. When we look at the schematic, we see the letter + number in this form, which
represents the pins of the FPGA. Figure 3-1 shows the FPGA chip physical map used for
the development board.
Figure 3-1
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