XMOS xCORE VocalFusion 4-Mic Kit for Amazon AVS, Руководство по оборудованию

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xCORE VocalFusion 4-Mic Kit for Amazon AVS Hardware Manual 5/25
3 Clock sources and distribution
The BaseBoard includes a single clock generator (Si5351A-B04486-GT, U25) that
generates two clocks:
· XVF3000 reference clock - 24MHz oscillator
· Low jitter master audio clock - 24.576MHz oscillator, used for the DAC and
(indirectly) the microphones
The clock generator is controlled over the I2C bus (see § 6 , below).
USB
Clock
DAC
3.5
mm
jack
25
Microphon
e ar
ray connector
XSYS connector
Extension header
, J5
Extension header J6
Figure 4:
Clock and
oscillator
locations
4 Stereo DAC with headphone amplifier
A CS43L21 stereo DAC with integrated headphone amplifier is used to generate
audio output on a 3.5mm audio jack. The CS43L21 is connected to the XVF3000
device through an I2S interface and is configured using the I2C bus (see §
6 , below).
The CS43L21 stereo DAC/HPA device is connected to the following pins for its I2S
interface:
Pin Port Signal
X1D28 P4F0 DAC_RST_N
X1D36 P1M0 I2S_BCLK
X1D37 P1N0 I2S_LRCK
X1D38 P1O0 MCLK_TILE1
X1D39 P1P0 I2S_DAC_DATA
XM011897A