ST AN4118 APPLICATION NOTE
Introduction
APWLink™ USB interface board
for Sound Terminal
AN4118
Application note
®
demonstration boards
This document describes APWLink™ which has been designed as a USB interface board to
control ST Sound Terminal
user manual UM1545, “Using the Audio Processor Workbench (APWorkbench)”.
The orderable part number for APWLink™ is STEVAL-CCA035V1.
Figure 1. APWLink™ interface board (STEVAL-CCA035V1)
®
demonstration boards through APWorkbench, please refer to
June 2012 Doc ID 023226 Rev 1 1/14
www.st.com
Contents AN4118
Contents
1 Board overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
®
2.2 3.3 V digital power output to Sound Terminal
2.3 Connection to Sound Terminal
2.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Analog input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.6 External I
2.7 Serial digital audio input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Jumper configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2
S input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
®
demonstration board . . . . . . . . . . . . . . . . 6
demonstration board . . . . . 6
3 Board schematic and bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2/14 Doc ID 023226 Rev 1
AN4118 List of tables
List of tables
Table 1. Jumper configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 2. Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 3. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Doc ID 023226 Rev 1 3/14
List of figures AN4118
List of figures
Figure 1. APWLink™ interface board (STEVAL-CCA035V1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. System connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3. APWLink™ general view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 4. Connection to Sound Terminal
Figure 5. Enabling the ADC using APWorkbench . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6. I
Figure 7. APWLink™ schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2
S input from an external ADC through J15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
®
demonstration board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4/14 Doc ID 023226 Rev 1
AN4118 Board overview
1 Board overview
In addition to providing control signals to the external Sound Terminal® demonstration
board, analog/digital audio inputs are also provided from APWLink™.
The system connections are shown below in the following figure.
Figure 2. System connections
Analog
source
APWorkbench
USB Cable
Figure 3. APWLink™ general view
Digital
source
APWLinkTM Sound Terminal® demonstration board
Doc ID 023226 Rev 1 5/14
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