![GOWIN DK USB2.0 GW2AR-LV18QN88PC8I7 GW1NSR-LV4CMG64PC7I6 V3.0 User Manual Download Page 17](http://html.mh-extra.com/html/gowin/dk-usb2-0-gw2ar-lv18qn88pc8i7-gw1nsr-lv4cmg64pc7i6-v3-0/dk-usb2-0-gw2ar-lv18qn88pc8i7-gw1nsr-lv4cmg64pc7i6-v3-0_user-manual_2248336017.webp)
3 Development Board Circuit
3.3 Power Supply
DBUG408-1.0E
10(16)
Signal Name
FPGA Pin No.
BANK
I/O Level
Description
F1_TDI
E2
0
3.3V
JTAG Signal
F1_TMS
D2
0
3.3V
JTAG Signal
3.3
Power Supply
3.3.1
Introduction
The development board is powered via a power adapter. The input
parameter is 100-240V~50/60MHz 25VA, and the output is DC +5V 2A.
The input 5V power can generate 3.3V, 1.8V, 1.2V, and 1.0V via the
power supply chip on the development board.
Use two FP6165ADXR-G1 power chips to generate 1.2V and 1.0V
power, and the maximum output current is 3A.
Use one PAM2306AYPAA DC-DC power chip to generate 3.3V and
1.8V power, and the maximum output current is 1A.
3.4
Clock and Reset
3.4.1
Introduction
The development board offers a 12MHz oscillator connecting to the
global clock pins and 8.192MHz IIS clock for
FPGA-GW1NSR-LV4CMG64P at the same time.
The development board offers a 12MHz oscillator connecting to the
global clock pins and 8.192MHz IIS clock for FPGA-GW2AR-LV18QN88P
at the same time.
The development board resets through the key, and press the key to
reset FPGA after power up.
Figure 3-2 Connection Diagram of Clock and Reset
KEY1
12MHz
RST_N
CLK_G