SI5318-EVB Silicon Laboratories Inc, SI5318-EVB Datasheet - Page 19

• Manufacturer Part Number: SI5318-EVB
• Description: BOARD EVALUATION FOR SI5318
• Manufacturer: Silicon Laboratories Inc
• Type: Precision Clockr

Specifications of SI5318-EVB

• Contents: Fully Assembled Evaluation Board
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SI5318
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1179

2.13. Design and Layout Guidelines
Precision clock circuits are susceptible to board noise
and EMI. To take precautions against unacceptable
levels of board noise and EMI affecting performance of
the Si5318, consider the following:
Power the device from 3.3 V since the internal
regulator provides at least 40 dB of isolation to the
V
Use an isolated local plane to connect the V
pins. Avoid running signal traces over or below this
plane without a ground plane in between.
Route all I/O traces between ground planes as much
as possible
Maintain an input clock amplitude in the 200 mV
500 mV
Excessive high-frequency harmonics of the input
clock should be minimized. The use of filters on the
input clock signal can be used to remove high-
frequency harmonics.
DD25
pins (which power the PLL circuitry).
PP
differential range.
DD25
PP
to
Rev. 1.0
Si5318
19