Evaluates: MAX MAX35104EVKIT2 Evaluation Kit. General Description. Features. MAX35104EVKIT2 and Transducers

Transcription

1 Click here for production status of specific part numbers. MAX0EVKIT Evaluation Kit Evaluates: MAX0 General Description The MAX0EVKIT is an Arduino -compatible shield that features the MAX0 time-to-digital converter. The board is stackable with other MAX0EVKIT s to facilitate multi-axis distance and gas flow applications. The PCB exposes many signals for easy analysis with an oscilloscope. Hardware configuration experimentation is facilitated by jumpers. The kit is designed to be used with Arduino-compatible controller boards, such as the MAXMBED# but can be adapted to use with any host microcontroller architecture. Features Easy Evaluation of the MAX0 in an Embedded Environment Two Audiowell 00kHz Ultrasonic Transducers Included Arm Mbed Development Environment Supported Through the MAXMBED# Board Ordering Information appears at end of data sheet. MAX0EVKIT and Transducers Arduino is a registered trademark of Arduino, LLC. Arm is a registered trademark and Mbed is a trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. 9-00; Rev 0; /

2 MAX0EVKIT Evaluation Kit Evaluates: MAX0 Detailed Description The MAX0EVKIT is an ultrasonic time-to-digital convertor Arduino-compatible shield. The EV kit includes two 00kHz air/gas transducers for distance and flow experimentation. The PCB contains a MAX0 timeto-digital converter, two crystal clock sources, and a highvoltage boost circuit. Configuration Options The PCB supports several jumpers to configure power and clocking options. Figure. Audiowell AW9Y000K0Z-0 00kHz Gas Transducer POWER SELECT HV SELECT HIGH-FREQUENCY CLOCK SOURCE EXTERNAL BOOST J.V.0V J J9 J CMPOUT (COMPARATOR OUTPUT) J LOW-FREQUENCY CLOCK SOURCE SCLK MISO MOSI.V V J CSIN EXTERNAL CS CS J J FETG COMP CIP (COMPARATOR INPUT) J J HF CLK LF CLK INT J0 DOWN UP J J J CS CS DOWN+ DOWN- UP- UP+ TEMP TC CHIP SELECT SOURCE TRANSDUCER INTERFACE Figure. Configuration Options Maxim Integrated

3 MAX0EVKIT Evaluation Kit Evaluates: MAX0 Figure. Configuration Example J Power Select This header selects which power source is used to create the high-voltage rail applied to the output amplifiers in the MAX0. The options are:.v, V, and. Only one source should be jumpered. Misconfiguration of this header could damage the host board. In Figure, the is used as the voltage source. J9 High-Voltage Select This header performs two functions. The leftmost two positions select the voltage rail used to power the output transducer amplifiers in the MAX0. The options are: the voltage source selected by J, or the on-board highvoltage boost circuit controlled by the MAX0. Only one voltage source should be selected. Misconfiguration of this header could damage the host board. In Figure, the output of the boost circuit used to power the transducer amplifiers. The rightmost header position allows for jumpering between VP and. This selection is independent of the other J9 jumper options. Jumpering VP to effectively disabled the high-voltage linear regular internal to the MAX0. The application firmware should disable the regulator if this jumper exists. Refer to the MAX0 data sheet for details. J High-Frequency Clock Source This header selects the clock source for the MHz input to the MAX0. This can either be the MHz crystal (X) or an external clock source from the host board or another shield. The normal configuration is to use the crystal that requires the two leftmost positions be jumpered. Application firmware must configure the MAX0 according to the signal selected. Refer to the MAX0 data sheet for details. In Figure, the crystal is selected as the source for the MHz clock. J Low-Frequency Clock Source This header selects the clock source for the.khz input to the MAX0. This can either be the.khz crystal (X) or an external clock source from the host board or another shield. The normal configuration is to use the crystal that requires the leftmost and the rightmost positions to be jumpered. Application firmware must configure the MAX0 according to the signal selected. Refer to the MAX0 data sheet for details. J Chip Select This header selects which signal is used for the MAX0 SPI chip select. This allows multiple shields to be installed for multi-axis measuring applications. Reference Software Reference software for this evaluation kit used in conjunction with the MAXMBED# evaluation kit is available at: A portable MAX0x API library is available at: github.com/maxim-ic-flow/max0x. Ordering Information PART MAX0EVKIT# #Denotes RoHS compliant. TYPE EV Kit Maxim Integrated

4 MAX0EVKIT Evaluation Kit Evaluates: MAX0 MAX0EV Kit Bill of Materials DESIGNATION MANUFACTURER PART NUMBER DESCRIPTION C, C, C, C C, C, C, C, C, C CL0C0JBNNNC CAP CER PF 0V C0G/NP0 00 CL0B0KONNNC CAP CER 0.µF V 0% XR 00 C Yageo CC00KRXRBB CAP CER.µF.V 0% XR 00 C9 C0 CL0CJBNNNC CAP CER 0PF 0V C0G/NP0 00 CL0B0KBNCNC CAP CER 0000PF 0V 0% XR 00 C, C Taiyo Yuden LMK0B0KA-T CAP CER µf 0V 0% XR 00 C, C C CLB0KBHNNNE CAP CER 0µF 0V XR 0 CL0C0JBNNWC CAP CER 00PF 0V C0G/NP0 00 D Micro Commercial Co SMDPL-TP DIODE SCHOTTKY 0V A SODFL J, J, J, J9, J Harwin Inc. M0-0 XPOS DIL VERTICAL SMT HEADER J Phoenix Contact TERM BLOCK POS J, J Global Connector Technology SP Stackable Header -pin connector J Global Connector Technology SP Stackable Header -pin connector J Global Connector Technology SP Stackable Header 0-pin connector J0, J, J, J, J, J, J Harwin Inc. M-00 -pin Connector mm vertical L Laird-Signal Integrity Products TYS000M-0 FIXED IND µh A MOHM SMD Q Infineon Technologies IRLML000TRPBF MOSFET N-CH 0V.A SOT-- R, R RC0F0CS RES SMD 00Ω % /0W 00 R Yageo RC00FR-0KL RES SMD KΩ % /0W 00 R Stackpole Electronics Inc. CSR00FKR00 RES SMD 0.Ω % /W 00 R Yageo RC00FR-0KL RES SMD KΩ % /0W 00 U Maxim Integrated MAX0ETL+ MAX0 Gas Flow Meter SoC X ECS Inc. ECS-.-.-X-C-TR CRYSTAL.0KHZ.PF SMD X Abracon LLC ABLS-.000MHZ-B-T CRYSTAL.0000MHZ PF SMD Maxim Integrated

5 MAX0EVKIT Evaluation Kit Evaluates: MAX0 A A Shield Connections J J V V0 0 SCK MISO MOSI CS CON CS CON0 V VP J J CPU_CLK MASTER_CLK INT C C C C 0.uF 0.uF 0.uF.0uF CON J9 VP B CON SWITCHER B D J JUMPBLOCK U V J J CMP_OUT J 0 TX_DOWN- D V CE VDD J CS SCK TX_DOWN+ SCK AVDD CS MOSI TX_UP- V0 DIN VDDISO MISO TX_UP+ JUMPBLOCK DOUT JUMPBLOCK TEMP CMP_OUT/UP_DN CIP TC CSW CIP J J V CPU_CLK RST CIN INT CON C INT RXP L C pf WDO RXN uh 0uF X TX_UP+ MHz JUMPBLOCK 9 TX_UP- MX (pf) TX_UPN J0 0 TX_UP+ C TX_UPP D pf J TX_DOWN- TX_DNN TX_DOWN+ MX TX_DNP TX_DOWN+ KX (pf) SMDPL-TP C J FETG pf 9 G X FETG Q MASTER_CLK.KHz IRLMl000TRPBF KX CSIN C JUMPBLOCK J C pf R C KOUT VSS_SW 00 ohm R BYPASS CSIN VP VP 00 ohm 0 VX R R CPL COMP 00mOhm CPH k C C C C C TEMP C9 C0 00pF AVSS T 0.uF.uF.0uF 0.uF 9 0pF 0.0uF VSS T EP 0 TC VSSISO TC J MAX0 R k C COMP 0.uF C 0uF D D 9 9 D S Copyright 0 Maxim Integrated Title MAX0EVKIT Size Document Number Rev Tabloid Document.0 Date: 0/0/0 Drawn By: * Sheet of MAX0EV Kit Schematic Maxim Integrated

6 MAX0EVKIT Evaluation Kit Evaluates: MAX0 MAX0EV PCB Layouts Assembly PCB Top PCB Bottom Maxim Integrated

7 MAX0EVKIT Evaluation Kit Evaluates: MAX0 Revision History REVISION NUMBER REVISION DATE DESCRIPTION PAGES CHANGED 0 / Initial release For pricing, delivery, and ordering information, please contact Maxim Direct at --9-, or visit Maxim Integrated s website at. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 0 Maxim Integrated Products, Inc.