S i 5 3 4 5 - E V B
4
Rev. 1.1
5. Status LEDs
D27, D22, and D26 are illuminated when USB +5 V, 3.3 V, and Si5345 V
DD
supply voltages, respectively,
are present. D25, D21, and D24 are status LEDs showing on-board MCU activity.
Figure 3. Status LEDs
Si5345 EVB Status LEDs
Location
Silkscreen
Color
Status Function Indication
D27
5VUSBMAIN Blue
Main USB +5 V present
D22
3P3V
Blue
DUT +3.3 V is present
D26
VDD DUT
Blue
DUT VDD voltage present
D25
INTR
Red
MCU INTR (Interrupt) active
D21
READY
Green MCU Ready
D24
BUSY
Green MCU Busy
