Si5338-EVB
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
3
Rev. 1.5 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 14, 2021
2. Quick Start
1. Install the
software.
2. Connect a USB cable from the EVB to the PC where the software was installed.
3. Leave the jumpers as installed from the factory, and launch ClockBuilder Pro.
3. Jumpers
The Si5338-EVB is shipped with jumpers installed on the following positions:
VDD
—Connects the Si533x VDD pin to the VDD programmable voltage regulator.
VDDO0
—Connects the Si533x VDDO0 pin to the VDDO0 programmable voltage regulator.
VDDO1
—Connects the Si533x VDDO1 pin to the VDDO1 programmable voltage regulator.
VDDO2
—Connects the Si533x VDDO2 pin to the VDDO2 programmable voltage regulator.
VDDO3
—Connects the Si533x VDDO3 pin to the VDDO3 programmable voltage regulator.
SCL
—Connects the Si533x SCL pin to the I
2
C bus from the MCU.
SDA
—Connects the Si533x SDA pin to the I
2
C bus from the MCU.
The INx-CTRL jumpers are optional jumpers for enabling MCU control of the Si533x input pins. This feature may
be available in future software releases.
4. Status LEDS
There are four status LEDs on the Si5338-EVB:
RDY
(Green)—Indicates that the EVB is operating normally. This LED should always be on.
I
2
C
(Green)—Indicates when there is active I
2
C communication between the MCU and the Si533x device or
between the MCU and voltage regulators.
USB
(Green)—Indicates when there is active communication between the PC and the MCU over the USB
bus.
INTR
(Red)—The MCU has detected that the interrupt pin of the Si533x device is enabled. The most
probable cause for an interrupt is because the Si533x has lost its input signal or the PLL has lost lock. The
“Status” tab of the GUI will identify the event that caused the interrupt to occur.