Cirrus Logic CDB470xx - Manual (Page 35)

3-3 Copyright 2014 Cirrus Logic, Inc. DS886DB11
Installation, Setup, and Running First Application
CDB47xxx User’s Manual
which is launched after the CDB47xxx Evaluation Kit is installed and thereafter when the user’s
system is rebooted, displays the Device name as “CS47xxx_board”. Look for the CDM icon in
the Windows System Icon Tray (located, by default, in the lower-right side of the task bar).
Caution: The Cirrus Device Manager must be running in order for the board to operate correctly.
3.1.4 Running a Stereo PCM SPDIF In, DAC Out Application on CDB47xxx
Launch DSP Composer (Start

Program

Cirrus DSP

CS47XXX

DSPComposer).
1. In DSP Composer, go to File

Open and open C:\CirrusDSP\CS47xxx\projects\spdif_in_dacout.cpa.
Note: If the pop up window “Project Out of Date” apprears, click on “Update Devices”.
2. Press the Go button.
3. Insert PCM material into the DVD player (e.g., music CD). If a DVD is being used as the audio source,
make sure that the DVD Player (or other digital audio source) is configured to output PCM data.
Note: Press Play on the DVD player (or other digital audio source). You should now hear audio from
the speakers.
3.1.5 Running a Stereo ADC In, DAC Out Application on CDB47xxx
Launch DSP Composer (Start

Program

Cirrus DSP

CS47XXX

DSPComposer)
1. In DSP Composer, go to File

Open and open C:\CirrusDSP\CS47xxx\projects\adc_in_dacout.cpa.
Note: If the pop up window “Project Out of Date” appears, click on “Update Devices”.
2. Press the Go button.
3. Provide analog audio input signals to inputs AIN_1A (J14) and AIN_1B (J15) of the CDB47xxx. (Full
scale is approximately 4.3Vrms for a differential signal, and approximately 2.15Vrms for single
ended.)
4. You should now hear audio from the speakers.