Silicon Laboratories Si5348-E, User Manual

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3. Status LEDs
Table 3.1. Si5348-E 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 Core voltage present
D25 INTR Red MCU INTR (Interrupt) active
D21 READY Green MCU Ready
D24 BUSY Green MCU Busy
D5 LOL_T0B Blue Loss of Lock - DSPLL C
D6 LOL_T4B Blue Loss of Lock - DSPLL D
D8 LOS2B Blue Loss of Signal at IN2
D11 INTRB Blue Si5348 Interrupt Active
D12 LOS1B Blue Loss of Signal at IN1
D13 LOL_AB Blue Loss of Lock DSPLL A
D14 LOS0B Blue Loss of Signal at IN0
D27, D22, and D26 are illuminated when USB +5 V, Si5348-E-EVB +3.3 V, and Si5348 VDD or supply voltages, respectively, are
present. D25, D21, and D24 are status LEDs showing on-board MCU activity. LEDs D14, D12, and D8 indicate loss of signal at clock
inputs IN0, IN1, and IN2, respectively. LEDs D13, D5, and D6 indicate loss of lock for one of three internal DSPLLs (A, C, and D) re-
spectively. D11 indicates Si5348 interrupt output is active (as configured by Si5348 register programming). LED locations are highligh-
ted below with LED function name indicated on board silkscreen.
Figure 3.1. Si5348-E-EVB LED Locations
UG362: Si5348-E Evaluation Board User's Guide
Status LEDs
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