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Si5344-EVB

6

Rev. 1.0

 

8.  Clock Output Circuits (OUTx/OUTxB)

Each of the 8 outputs (4 differential pairs) is AC coupled to its respective SMA connector. The output clock
termination circuit is shown in Figure 5. The output signal has no DC bias. If DC coupling is required, the AC
coupling capacitors can be replaced with a resistor of appropriate value. The Si5344-EVB provides pads for
optional output termination resistors and/or low frequency capacitors. 

Note:

Components with schematic “NI” designation are not normally populated on the Si5344-EVB and provide locations on
the PCB for optional DC/AC terminations by the end user.

Figure 5. Output Clock Termination Circuit

9.  Installing ClockBuildPro (CBPro) Desktop Software

To install the CBPro software on any Windows 7 (or later version) PC do the following:

1.  Go to 

http://www.silabs.com/CBPro/ 

and download ClockBuilderPro™ software.

2.  Installation instructions and User’s Guide for ClockBuilderPro™ can be found at the download link shown 

above. Please follow the instructions as indicated.

10.  Using Si5344 EVB

10.1.  Connecting the EVB to Your Host PC

Once ClockBuilderPro™ software in installed, connect to the EVB with a USB cable as shown in Figure 6.

Figure 6. EVB Connection Diagram

Summary of Contents for Si5344-EVB

Page 1: ...ontrolled and configured using the ClockBuilder ProTM CBProTM software tool Features Powered from USB port or external power supply Onboard 48 MHz XTAL or Reference SMA Inputs allow holdover mode of o...

Page 2: ...iagram of the Si5344 EVB This EVB can be connected to a PC via the main USB connector for programming control and monitoring See Section 3 Quick Start or Section 9 Installing ClockBuildPro CBPro Deskt...

Page 3: ...n use ClockBuilderPro to create download and run a frequency plan on the Si5344 EVB 5 For the Si5344 data sheet go here http www silabs com timing 4 Jumper Defaults Si5340 EVB Jumper Defaults Location...

Page 4: ...EDs showing on board MCU activity Figure 2 Status LEDs Si5340 EVB Status LEDs Location Silkscreen Color Status Function Indication D5 INTRB Blue DUT Interrupt D7 LOLB Blue DUT Loss of Lock D8 LOSXAXBB...

Page 5: ...e REFCLK can then be applied to J25 and J26 Figure 3 External Reference Input Circuit 7 Clock Input Circuits INx INxB and FB IN FB INB The Si5344 EVB has eight SMA connectors IIN0 IN0B IN2 IN2B and IN...

Page 6: ...ly populated on the Si5344 EVB and provide locations on the PCB for optional DC AC terminations by the end user Figure 5 Output Clock Termination Circuit 9 Installing ClockBuildPro CBPro Desktop Softw...

Page 7: ...EVB GUI Figure 7 Application 1 ClockBuilderPro Wizard Use the CBPro Wizard to do the following Create a new design Review or edit an existing design Export create in system programming Figure 8 Applic...

Page 8: ...ser created Device Configuration Each is described in more detail in the following sections 10 3 1 Workflow Scenario 1 Testing a Silicon Labs Created Default Configuration The flow for using the EVB G...

Page 9: ...Dialog 4 Select Yes to write the default plan to the Si5344 device mounted on your EVB This ensures the device is completely reconfigured per the Silicon Labs default plan for the DUT type mounted on...

Page 10: ...and power readings for each VDDx supply Note Shutting the VDD and VDDA power supplies Off and then On will power down and reset the DUT Every time you do this to reload the Silicon Labs created defau...

Page 11: ...Si5344 EVB Rev 1 0 11 Figure 16 View Design Report...

Page 12: ...e observed output clocks to the frequencies and formats noted in your default project s Design Report Figure 17 Design Report Window Verify Locked Mode Operation Assuming you connect the correct input...

Page 13: ...You will now be taken to the Wizard s step by step menus to allow you to change any of the default plan s operating configurations Figure 19 Design Wizard Note You can click on the icon on the lower l...

Page 14: ...n 1 To test a previously created user configuration open the CBPro Wizard by clicking the icon on your desktop and then selecting Open Design Project File Figure 21 Open Design Project File 2 Locate y...

Page 15: ...s of your output clocks and other operating configurations using external instrumentation 10 4 Exporting the Register Map File for Device Programming by a Host Processor You can also export your confi...

Page 16: ...device can also support a 2 wire I2C serial interface although the Si5344 EVB does NOT support the I2C mode of operation SPI mode was chosen for the EVB because of the relatively higher speed transfe...

Page 17: ...6 Serial Communications Header J17 13 Si5344 EVB Schematic and Bill of Materials BOM The Si5344 EVB Schematic and Bill of Materials BOM can be found online at http www silabs com products clocksoscill...

Page 18: ...Si5344 EVB 18 Rev 1 0 DOCUMENT CHANGE LIST Revision 1 0 Initial Release...

Page 19: ...assumes no responsibility for errors and omissions and disclaims responsibility for any consequences resulting from the use of information included herein Additionally Silicon Laboratories assumes no...

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