Check the EVM jumper settings
to confirm the settings match Figure 1-1.
Connect a 5 V power supply to
the power jack (PWR_JACK), connector J26 on the DS560DF410EVM
board.
Check the DS2 (PWR) LED to
confirm the LED light is on.
Connect the USB Type Mini-B
Cable from the PC to the USB port (J1) of the EVM.
Check the DS4 (USB_PWR)
LED.
The 5 V voltage is regulated
down to 3.3 V on the EVM (refer to Figure 1-2).
The 3.3 V supply is
used to derive the 1.2 V and 1.8 V rails for the DS560DF410
retimer.
In addition, the 3.3
V voltage directly powers up the EEPROM, FTDI USB interface chip and
level shifter devices.
VDD 1.2 V is powered
up first and secondly the VDD 1.8 V.
VDD 1.2 V uses a
DC-DC regulator, while the VDD 1.8 V is regulated through the
LDO.
Check the DS1 LED (3.3 V) to
confirm the LED is on.
The default EVM jumper
settings are for using the onboard CAL_CLK_IN 25 MHz oscillator option. If
using the external clock signal option, then connect the external clock
signal to the retimer CAL_CLK_IN pin through board connector
J100.
Recommended CAL_CLK_IN external
signal characteristics
1.8 V LVCMOS compatible clock or
sinusoidal signal