KNOWLES – KAS-33100-0004 “MUSKIE” MICROPHONE EVALUATION KIT USERS GUIDE
knowles.com | KNOWLES – KAS-33100-0004 “MUSKIE” MICROPHONE EVALUATION KIT USERS GUIDE
©2019, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved.
4
SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC.
4
7.
I2S Digital Mic Connector
The socket connector can accommodate a maximum of two
coupons. Orient the flex adapter board (KCA2733) to align
the “P O G” markings with the “P O G” markings on the
Muskie board.
8.
PDM Digital Mic Connector
The socket connector can accommodate a maximum of two
coupons. Orient the flex adapter board (KCA2733) to align
the “P O G” markings with the “P O G” markings on the
Muskie board.
9.
Analog Mic Connector
The socket connector can accommodate a maximum of two
coupons. Orient the flex adapter board (KCA2733) to align
the “P O G” markings with the “P O G” markings on the
Muskie board.
10.
Analog Mic Type Selection Jumper
Select between Analog Differential Mic and Analog Single
ended Mic. Left jumper is selector for ANA1 connector
socket. Right jumper is selector for ANA2 connector socket.
11.
Analog/Digital Mic Type Selector
Select independently left and right channels between analog
or digital microphone paths.
12.
Right Channel Audio Output
Right channel differential analog audio output. Audio is
output thru a male XLR connector with the following pinouts.
Pin 1 – GND
Pin 2 – Right channel positive audio signal
Pin 3 – Right channel negative audio signal
13.
Left Channel Audio Output
Left channel differential analog audio output. Audio is output
thru a male XLR connector with the following pinouts.
Pin 1 – GND
Pin 2 – Left channel positive audio signal
Pin 3 – Left channel negative audio signal
14.
Headset Audio Output Jack
3.5mm standard analog headset jack passing stereo audio.
15.
Audio Level Selectors
Independent left and right channel gain/attenuation settings
.
16.
Digital Mics Clock Frequency Selector
PDM/I2S system clock generator. Select between nine
useable digital microphone frequencies.
768KHz
1.024MHz
1.536MHz
2.048MHz
2.4MHz
2.822MHz
3.072MHz
4.096MHz
4.8MHz
NONE – Disables the clock generator circuit.
17.
USB Audio Connector
USB Micro B connector for steaming USB audio to a PC.
The Muskie board uses a generic Windows 7 USB audio
driver. No external software driver installation nessessary.
When connected and powered the device will appear as an
USB Audio Codec under the Recording tab of the Sound
window.
Figure 5: PC Sound Window
18.
Dual Mic Test Jumpers
PDM2 and I2S2 sockets VDD pin can be set to VDD or
GND, independent of PDM1 or I2S1 sockets. Used for
stereo Mic VDD testing.
