Usb Audio 2.0 Multichannel Reference Design Board - XMOS xCORE-200 Multi-channel Audio board Design Manual

USB Audio Design Guide
Figure 5:
USB Audio
2.0 Reference
Design Block
Diagram

2.7 USB Audio 2.0 Multichannel Reference Design Board

This hardware should not be used for the basis of a new design.
The USB Audio 2.0 Multichannel Reference Design (XR-USB-AUDIO-2.0-MC)
hardware reference design available from XMOS based on the XMOS L16 device
(previously named L2)
Figure
Design board.
The board supports six analogue inputs and eight analogue outputs (via a CS4244
CODEC), digital input and output (via coax and optical connectors) and MIDI input
and output. For full details please refer to USB Audio 2.0 Reference Design, XS1-L2
Edition Hardware Manual
The reference board has an associated firmware application that uses the USB
Audio 2.0 software reference platform. Details of this application can be found in
section §6.3.
17
https://www.xmos.com/support/boards?product=14771
18
https://www.xmos.com/download/public/USB-Audio-2.0-MC-Hardware-Manual%281.6%29.pdf
XM0088546.1
13MHz
Oscillator
USB
High Speed
480Mb/s
USB USB
Transceiver
Series B
USB3318
Receptacle
+5V VBus
1.8V LDO
3.3V LDO
8'.'
Tile
1.0V DC-DC
Supply
CODEC
4.3V LDO
Analogue
Supply
6 shows the block layout of the USB Audio 2.0 Multichannel Reference
XSYS 1MBit
Debug FLASH
JTAG
ULPI
User Push-button
LEDs Switches
18
.
S/PDIF
Resync
SPI
MCLK
24 bit 192kHz
I2S
Stereo Audio
CODEC
CS4270
Audio Master
Clock Oscillator
Produces
24.576MHz
or
11.2896MHz
17/110
Optical
Digital Audio
Transmitter
Analog Out
1Vrms at
Full Scale
'-244
Passive
Stereo
LPF
TRS Jack
'-244
Passive
Stereo
LPF
TRS Jack
Analog In
2Vrms at
Full Scale
17
is a