USB AUDIO 2.0 REFERENCE DESIGN XMOS, USB AUDIO 2.0 REFERENCE DESIGN Datasheet - Page 49

• Manufacturer Part Number: USB AUDIO 2.0 REFERENCE DESIGN
• Description: USB AUDIO 2.0 REFERENCE DESIGN
• Manufacturer: XMOS

Specifications of USB AUDIO 2.0 REFERENCE DESIGN

• Design Resources: USB AUDIO Schematic
• Main Purpose: Audio, Audio Processing
• Embedded: Yes
• Utilized Ic / Part: XS1-L1
• Primary Attributes: Audio data up to 24-bit @ 192kHz
• Secondary Attributes: I²S and S/PDIF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 880-1017

The following functions need to be defined by an application using the USB audio
USB Audio Software Design Guide
5.1.2 USB Device Configuration Options
5.2 Required User Function Definitions
framework.
MIN_VOLUME
MAX_VOLUME
VOLUME_RES
MIN_MIXER_VOLUME
MAX_MIXER_VOLUME
VOLUME_RES_MIXER
VENDOR_ID
PID_AUDIO_2
PID_AUDIO_1
BCD_DEVICE
VENDOR_STR
SERIAL_STR
Define
Define
This is a signed 8.8 fixed point number
(0x8000).
The minimum volume setting above -inf.
that must be strictly greater than -128
The maximum volume setting for the
mixer in db. This is a signed 8.8 fixed
point number.
The resolution of the volume control in
db as a 8.8 fixed point number.
The minimum volume setting for the
mixer unit above -inf. This is a signed
8.8 fixed point number that must be
strictly greater than -128 (0x8000).
The maximum volume setting for the
mixer. This is a signed 8.8 fixed point
number.
The resolution of the volume control in
db as a 8.8 fixed point number.
Vendor ID
Product ID (Audio Class 2)
Product ID (Audio Class 1)
Device release number in BCD form
String identifying vendor
String identifying serial number
Description
Description
Document Revision 1.2
0x8100
0
0x100
0x8080
0x0600
0x080
(0x20B1)
N/A
N/A
N/A
XMOS
“0000”
Default
Default
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