SI5338/56-PROG-EVB Silicon Laboratories Inc, SI5338/56-PROG-EVB Datasheet - Page 2

• Manufacturer Part Number: SI5338/56-PROG-EVB
• Description: KIT PROG FIELD SI5338/4/0
• Manufacturer: Silicon Laboratories Inc
• Type: Programmable Clock Generatorr

Specifications of SI5338/56-PROG-EVB

• Contents: Board, Cable, CD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Si5338
• Lead Free Status / Rohs Status: Details
• Other names: 336-1747; SI5338-PROG-EVB

Si5338/56-PROG-EVB
1. Introduction
The Si5338/Si5356 is a highly-flexible and configurable clock generator/clock buffer. The device has a
factory-defined default configuration stored in non-volatile memory (NVM). During powerup, the default
configuration is copied into the random access memory (RAM). Having its working configuration stored in RAM
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allows in-system configuration changes through the I
C port. During a power cycle, any configuration changes
stored in RAM are overwritten with the factory default configuration from the NVM.
The NVM is a one-time-programmable (OTP) memory that allows a user to define the default configuration. This is
a useful feature, especially if the Si5338/Si5356 is providing clocks to devices that require pre-defined clocks at
powerup. As its name implies, the OTP NVM can only be written once.
Si5338/Si5356
Power-Up
(OTP)
Default
Working
Configuration
Configuration
Field Programmer
USB
In-System
Configuration
Changes
Write
New Default Configuration
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I
C
Si5338-PROG-EVB
Figure 2. Memory Configuration
The field programming kit allows writing a new default configuration to the Si5338’s NVM memory. The kit consists
of the Field Programmer (Si5338-PROG-EVB), a USB cable, and the ClockBuilder™ Desktop Software. This
user’s guide outlines the steps necessary to write new default values to the NVM.
The NVM file must be created before writing it to the Si5338/Si5356. The NVM file is created using the
ClockBuilder Desktop, which is part of the ClockBuilder Desktop Software. NVM file support for the Si5356 is in
version 2.6 or later of the ClockBuilder Desktop Software. Version 2.5 or older only supports the Si5338. As
always, use the latest software version for best results. See "Appendix B—Installing the ClockBuilder Desktop
Software" on page 10 for installation instructions. Refer to the Si5338 or Si5356 user’s guides (available at
www.silabs.com) for information on using the ClockBuilder Desktop software.
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