Silicon Laboratories Si5348-E User Manual

UG362: Si5348-E Evaluation Board User's
Guide
The Si5348-E-EVB is used for evaluating the Si5348 Network Synchronizer Clock for
SyncE/1588 and Stratum 3/3E applications. The device revision is distinguished by a
white 1 inch x 0.187 inch label with the text "SI5348-E-EB" in the lower left-hand corner
of the board. (For ordering purposes only, the terms "EB" and "EVB" refer to the board
and the kit respectively. In this document, the terms are synonymous in context.) The
Si5348 contains three independent DSPLLs in a single IC with programmable jitter at-
tenuation bandwidth on a per DSPLL basis. The Si5348-E-EVB supports three inde-
pendent differential input clocks, two independent CMOS input clocks, and seven inde-
pendent output clocks via onboard SMA connectors. The Si5348-E-EVB can be con-
trolled and configured via a USB connection to a host PC running Silicon Labs' next
generation Clock Builder Pro™ (CBPro™) software tool. Test points are provided on-
board for external monitoring of supply voltages.
The device revision is distinguished by a white 1 inch x 0.187 inch label with the text
"SI5348-E-EB" installed in the lower left hand corner of the board. (For ordering purpo-
ses only, the terms "EB" and "EVB" refer to the board and the kit respectively. For the
purpose of this document, the terms are synonymous in context.
This kit comes with an OCXO board SiOCXO1-EB as well as a TCXO board SiTCXO1-
EB. The OCXO or the TCXO are used on the reference input (REF) of the Si5348 to
evaluate the holdover stability of the network synchronizer clock. Both boards are not
needed at the same time, but they are both included in the kit to provide a comparison
of the resulting performance.
silabs.com | Building a more connected world.
EVB FEATURES
• Powered from USB port or external +5 V
power supply via screw terminals
• Included SiOCXO1-EB reference OCXO
board allows for evaluation in standalone
and holdover mode.
• Included SiTCXO1-EB reference TCXO
board allows for evaluation in standalone
and holdover mode.
• CBPro™ GUI programmable VDD supply
allows device supply voltages from 3.3,
2.5, or 1.8 V
• CBPro™ GUI programmable V
supplies allow each of the seven outputs
to have its own supply voltage selectable
from 3.3, 2.5, or 1.8 V
• CBPro™ GUI allows control and
measurement of voltage, current, and
power of VDD and all 8 VDDO supplies
• Status LEDs for power supplies and
control/status signals of Si5348
• SMA connectors for input clocks, output
clocks and optional external timing
reference clock
DDO
Rev. 0.1