XE3000DVK Semtech, XE3000DVK Datasheet - Page 3

• Manufacturer Part Number: XE3000DVK
• Manufacturer: Semtech

Specifications of XE3000DVK

• Lead Free Status / Rohs Status: Not Compliant

4
For PC-controlled operation, the development kit has to be connected as described in the “getting started”
instructions and the software must be installed on a personal computer.
To install the software, put the CD-ROM supplied with the kit in a personal computer and copy the folder containing
the software on your computer. Run the software by double clicking on the “CodecInterface.exe” icon or you can
run the software directly from the CD.
Figure 4 shows the user interface (“GUI”) when the software is started.
4.1
First set the COM port with the “com setup button” on the main user interface. An interface as shown in Figure 2 will
appear. Choose the COM port connected to the development board and set the baud rate to 19200 as shown
below:
4.2
The XE3000 codec user interface (Figure 4) is separated in three fields. The Board initialisation on the left, the
codec configuration in the center and the registers on the right.
With the “Board Initialisation” on the left side, the XE3000 CODEC audio interface can be set to master or slave
mode and three different audio sources can be selected just below.
The XE88LC05 audio source has not yet been implemented. The CD audio source is available if you connect an
optical (Toslink) digital source with a S/PDIF format to the connector “U15” [16]. Finally the “other” source puts the
optical source in a tristate mode in order to be able to connect a users external source directly to the jumper below
the CODEC [6] (the signal levels have to correspond to the CODEC supply voltage level). In this mode the CODEC
can receive or send data via the four pin audio interface [6].
When choosing the CD audio source, don’t forget to change the jumper “mck” [7] in order that the master clock
comes from the CD source and is adapted to the sampling frequency of the data. Be careful to not use the ADC
part of the XE3000 when the sampling frequency is higher than 20Khz.
Under the Audio source, the power supply can be set in the box. The supply can vary between 1.8 to 3.3V in about
0.2V steps. Changing the value in the box immediately changes the supply on the board for the XE3000 codec.
© Semtech 2006
Operating the Dev Kit from a PC for evaluation purposes
Starting with the software
XE3000DVK Board initialisation
Figure 2: View of the com port setup
3
Development Kit for XE3000 Series
Users Guide XE3000DVK
www.semtech.com