USERS GUIDE KAS-33100-0004 MUSKIE MICROPHONE EVALUATION KIT Figure 1: KC10143 Muskie Assembly KIT DESCRIPTION KIT CONTENTS KC10143-xxx Muskie Evaluation Board (Note: xxx denotes The KAS-33100-0004 Muskie microphone evaluation kit allows for assembly revision number) simple and easy evaluation of Knowles SiSonic MEMS microphones. USB A to USB Micro cable power cable Evaluate two input channels of audio from multiple MEMS KCA2733 Flex Adapter Assembly (3 Total) microphone types. Note: The evaluation kit requires assembled MEMS Microphone types include single and differential Analog microphones. Usable assemblies include microphones mounted to flex circuit cards or coupon boards. The kit MEMS microphones, Digital PDM MEMS microphones, and does NOT include assembled Knowles MEMS microphones. Digital I2S MEMS microphones. Microphone assemblies are available separately from a Wide dynamic range (varies with microphone types and Knowles distributer. audio path). Selectable Clock Frequencies, Voltages, and Gains. Multiple Audio Outputs XLR, 3.5mm Headset Jack, USB Audio. Figure 2: Mic on Flex Assembly Example For additional Muskie evaluation kit information, electrical SIMPLE QUICK START documentation, or flex circuit assembly information visit the Knowles website. 3.3V 2.75V 1.8V 2 KNOWLES KAS-33100-0004 MUSKIE MICROPHONE EVALUATION KIT USERS GUIDE BLOCK DIAGRAM POWER SUPPLIES RT6150 +5VA 3.3v TPS65133 USB Micro B VBUS FILTVBUS 800mA 3D3 -5VA CURRENT SENSE Source LDK220 MicVDD Current ADJ VDD 0.0 CLOCK SELECTABLE GENERATOR VDD MK2705 27MHz Base Clock AUDIO CLK BCLK XTAL Freq Sel SOURCE CLK DIVIDER LRCLK CIRCUITS SCLK MCLK 74LVC157 19.2MHz RST XTAL FREQ SELECT MicVDD JUMPER Voltage Level PDM -> I2S shifter Converter PDM Data Dig Max Ana/Dig 192KHz Mic Clk Mic Clk BW=37.5KHz Mic1 I2S Data 4.8MHz Selector 24bit D/A WS LSCLK SData Dig SCLK AU7002 74AVC6T622 LOUT+ Mic2 LRCLK LRCLK BCLK OPA1632 BCLK Digital Data MicVDD LOUT- Selector PDM Data SDIN I2S Data I2S Data PCM1794 74LVC157 I2S WS Mic1 Ana/Dig LSCLK Select PDM Selector I2S Select I2S Mic2 MicVDD LT6232 ROUT- ANA Single/Diff Selector Mic1 +19db ANA Single/Diff Mic2 Selector USB CODEC USB USB Micro B PCM2900CDB Audio Connector BW = 48KHz Selectable Attenuation 0dB, -4dB, -15dB, -19dB Headset MAX9722A Jack LOUT+ OPA1632 LOUT- +0db LT6232 1 3 Left Diff Audio OPA1632 2 Selectable Attenuation 1 0dB, -4dB, -15dB, -19dB 3 Right Diff Audio 2 Figure 3: KC10143 Muskie Board Block Diagram knowles.com KNOWLES KAS-33100-0004 MUSKIE MICROPHONE EVALUATION KIT USERS GUIDE 2019, Knowles Electronics, LLC, Itasca, IL, USA, All Rights Reserved. 2 SiSonic, Knowles and the logo are trademarks of Knowles Electronics, LLC.