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Rev. 1.0 5/15

Copyright © 2015 by Silicon Laboratories

Si5346-EVB

  S i 5 3 4 6 - E V B

S i 5 3 4 6   E

V A L U A T I O N

  B

O A R D

  U

S E R

S

  G

U I D E

Description

The Si5346-EVB is used for evaluating the Si5346
Any-Frequency, Any-Output, Jitter-Attenuating Clock
Multiplier. The Si5346 contains 2 independent DSPLLs
in a single IC with programmable jitter attenuation
bandwidth on a per DSPLL basis. The Si5346-EVB
supports 4 independent input clocks

 

and 4 independent

clock outputs via on-board SMA connectors. The
Si5346-EVB can be controlled and configured using the
ClockBuilderPro

 

(CBPro

) software tool. Test points

are provided on-board for external monitoring of supply
voltages.

EVB Features

Powered from USB port or external power supply.

Onboard 48 MHz XTAL allows standalone or 
holdover mode of operation on the Si5346.

CBPro

 GUI programmable V

DD

 supply allows 

device to operate from 3.3, 2.5, or 1.8 V.

CBPro

 GUI programmable V

DDO

 supplies allow 

each of the 4 outputs to have its own power supply 
voltage selectable from 3.3, 2.5, or 1.8 V.

CBPro

 GUI allows control and measurement of 

voltage, current, and power of V

DD

 and all 4 V

DDO

 

supplies.

Status LEDs for power supplies and control/status 
signals of Si5346.

SMA connectors for input clocks, output clocks, and 
optional external timing reference clock.

Figure 1. Si5346 Evaluation Board

Summary of Contents for Si5346-EVB

Page 1: ...ro software tool Test points are provided on board for external monitoring of supply voltages EVB Features Powered from USB port or external power supply Onboard 48 MHz XTAL allows standalone or holdo...

Page 2: ...ck diagram of the Si5346 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 ClockBuilderPro CBPro...

Page 3: ...s si538x 4x evb aspx 3 Quick Start 1 Install ClockBuilderPro desktop software from http www silabs com CBPro 2 Connect a USB cable from Si5346 EVB to the PC where the software was installed 3 Leave th...

Page 4: ...6 EVB schematics for the functionality associated with each jumper Si5346 EVB Jumper Defaults Location Type I Installed 0 Open Location Type I Installed 0 Open JP1 2 pin I JP2 2 pin I JP3 2 pin O JP4...

Page 5: ...Ds showing on board MCU activity Figure 3 Status LEDs Si5346 EVB Status LEDs Location Silkscreen Color Status Function Indication D5 LOS_XAXBB Blue XA XB Loss of Signal indicator D6 INTRB Blue MCU INT...

Page 6: ...is sufficient however 10 F may be needed for lower input frequencies Note that the EVB is populated with both DC block capacitor values Figure 4 Input Clock Termination Circuit 7 Clock Output Circuit...

Page 7: ...pulated If a reference clock is required for testing remove Y1 and place C93 C94 A low jitter reference clock can then be applied to J25 J26 Note that XA XB is the jitter reference for the device Jitt...

Page 8: ...ons as indicated 10 Using the Si5346 EVB 10 1 Connecting the EVB to Your Host PC Once ClockBuilderPro software is installed connect to the EVB with a USB cable as shown below Figure 7 EVB Connection D...

Page 9: ...ions Figure 8 Application 1 ClockbuilderPro Wizard Use the CBPro Wizard to Create a new design Review or edit an existing design Export create in system programming Figure 9 Application 2 EVB GUI Use...

Page 10: ...guration The flow for using the EVB GUI to initialize and control a device on the EVB is as follows Once the PC and EVB are connected launch ClockBuilder Pro by clicking on this icon on your PC s desk...

Page 11: ...tors labeled INx INxB located around the perimeter of the EVB the DUT should now be operating in free run mode as the DUT will be locked to the crystal in this case You can run a quick check to determ...

Page 12: ...and frequencies of the output clocks running to free run mode from the crystal using appropriate external instrumentation connected to the output clock SMA connectors To verify the output clocks are...

Page 13: ...13 Figure 18 Design Report Window 10 5 2 Verify Locked Mode Operation Assuming you connect the correct input clocks to the EVB as noted in the Design Report shown above the DUT on your EVB will be run...

Page 14: ...uration To modify the default configuration using the CBPro Wizard click on Edit Configuration with Wizard Figure 19 Edit Configuration with Wizard You will now be taken to the Wizard s step by step m...

Page 15: ...te the DUT to reconfigure your device real time The Design Write status window will appear each time you make a change Figure 21 Writing Design Status 10 7 Workflow Scenario 3 Testing a User Created D...

Page 16: ...owse to Project File Select Yes when the WRITE DESIGN to EVB popup appears Figure 24 Write Design to EVB Dialog The progress bar will be launched Once the new design project file has been written to t...

Page 17: ...a Host Processor You can also export your configuration to a file format suitable for in system programming by selecting Export as shown below Figure 25 Export Register Map File You can now write you...

Page 18: ...Si5346 EVB 18 Rev 1 0 Figure 26 Export Settings...

Page 19: ...w Refer to the Si534x 8x Family Reference Manuals and device data sheets for information on how to write a configuration to the EVB DUT s non volatile memory OTP The OTP can be programmed a maximum of...

Page 20: ...h which if it fails can be reasonably expected to result in significant personal injury or death Silicon Laboratories products are generally not intended for military applications Silicon Laboratories...

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