xCORE VocalFusion 4-Mic Kit for Amazon AVS Hardware Manual
9
USB port
The USB micro-B port (J1) provides power for all the on-board circuits and is used
to generate the following voltage rails:
·
+1V0 (Core voltage to XMOS device)
·
+2V5 (for headphone amplifier in DAC device)
·
+3V3 for GPIOs and other accessory devices
Voltage tolerance should be as per USB VBUS specification values.
Proper power-on sequence is indicated by power good LED (D1) in bottom side of
the board.
USB
Clock
DAC
3.5
mm
jack
25
Microphon
e ar
ray connector
XSYS connector
Extension header
, J5
Extension header J6
Figure 14:
USB
components
The data lines from the USB micro-B port (J1) are connected to the XVF3000’s
integrated USB PHY, and so (with a different XVF3000 software)
can
be used to
provide USB audio and/or control connectivity to the XVF3000 and the BaseBoard.
Note:
·
the software pre-flashed in to the
xCORE VocalFusion 4-Mic Kit for Amazon
AVS
does
not
provide any USB connectivity.
·
J1 must be connected at all times to provide power to the BaseBoard, even
though the USB interface is not used.
XM011897A
