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AMS AS5048 Kit Manual

Adapter board
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Download this manual See also: Operating Manual, User Manual
Eval Kit Manual
DN[Document ID]
AS5048
Adapter Board
AS5048-EK-AB
ams Eval Kit Manual, Confidential
[v1-3] 2014-Aug-01
Page 1
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Summary of Contents for AMS AS5048

  • Page 1 Eval Kit Manual DN[Document ID] AS5048 Adapter Board AS5048-EK-AB ams Eval Kit Manual, Confidential Page 1 [v1-3] 2014-Aug-01 Document Feedback...

  • Page 2: Table Of Contents

    Table of Contents Introduction .......................... 3 Kit Content ........................... 3 Board Description ......................... 4 Mounting the AS5048 adapter board ................... 5 AS5048 adapter board and pinout ..................6 Operation cases ........................7 One Device SPI mode, unidirectional – 3 wire ..............7 One device SPI mode, bidirectional –...

  • Page 3: Introduction

    AS5048 Adapter Board Introduction The AS5048 adapter board is a small PCB allowing simple and quick testing or evaluation of the AS5048 magnetic position sensor without the need to build a test fixture or design an own PCB. Kit Content Figure 1: Kit Content Pos.

  • Page 4: Board Description

    P1 has to be populated with a 1x8 pin header and is required for power supply as well as SPI/I2C and PWM interfaces. The PCB is available in two versions. Either populated with an AS5048A with SPI or AS5048B with I2C interface. Figure 2: AS5048 adapter board P1 connector (Not populated) 4x2.6mm...

  • Page 5: Mounting The As5048 Adapter Board

    4x2.6mm AS5048 A 6x2.5mm diametric magnet must be placed over or under the AS5048 sensor, and should be centered on the middle of the package with a tolerance of 0.5mm. The airgap between the magnet surface and the package should be maintained in the range 0.5mm to 3mm. The magnet holder must not be ferromagnetic.

  • Page 6: As5048 Adapter Board And Pinout

    AS5048 Adapter Board AS5048 adapter board and pinout Figure 4: AS5048 adapter board connectors and encoder pinout SDA/CSn SCL/CLK A2/MISO VDD3V A1/MOSI VDD5V TEST TEST TEST TEST AS5048 TEST TEST Pin# Pin# Symbol Board Description Board AS5048 P1 – 1 Supply voltage 3.3V...

  • Page 7: Operation Cases

    The minimum connection requirement for unidirectional communication (angle + alarm values reading) between the microcontroller and the AS5048 are MISO, SCK, SS/. The angle will be read at each 16-bit SPI transfer. See AS5048 datasheet register table, register 3FFFh. Figure 5: Using the SPI Interface unidirectional with a microcontroller 3-3.6V...

  • Page 8: One Device Spi Mode, Bidirectional - 4 Wire

    One device SPI mode, bidirectional – 4 wire If other registers than only angle values have to be read, or in order to write registers into the AS5048, the signal MOSI is necessary. Figure 6: Using the SPI Interface biidirectional with a microcontroller 3-3.6V...

  • Page 9: Multi Devices Spi Daisy Chain Mode

    AS5048 Adapter Board Multi devices SPI Daisy chain mode The AS5048 can be daisy chained, using 4 wires only for SPI communication. In this configuration with n x encoders, the sequence will be processed as follow: - MCU sets SS/ = 0 - MCU shifts n x 16-bit (e.g.

  • Page 10: Software Example Source Code

    (i = 0; i < 2; i++) /* the result is available only just in the second transfer. transfers must be separated by chip selects */ = SPI_CMD_READ | SPI_REG_MAG; ams Eval Kit Manual, Confidential Page 10 [v1-3] 2014-Aug-01 Document Feedback...
  • Page 11 = (dat >> 2) & (currentChipDescription->positions - 1); dd->angle (dd->value * 360) / currentChipDescription->positions; dd->alarmLo = (dat >> 14) & 0x1; dd->alarmHi = (dat >> 15) & 0x1; #endif ams Eval Kit Manual, Confidential Page 11 [v1-3] 2014-Aug-01 Document Feedback...

  • Page 12: As5048-Ek-Ab Hardware

    AS5048 Adapter Board AS5048-EK-AB Hardware AS5048-EK-AB schematics Figure 8: AS5048-EK-AB schematics ams Eval Kit Manual, Confidential Page 12 [v1-3] 2014-Aug-01 Document Feedback...

  • Page 13: As5048-Ek-Ab Pcb Layout

    AS5048 Adapter Board AS5048-EK-AB PCB layout Figure 9: AS5048-EK-AB PCB layout ams Eval Kit Manual, Confidential Page 13 [v1-3] 2014-Aug-01 Document Feedback...

  • Page 14: Ordering & Contact Information

    AS5048 Adapter Board Ordering & Contact Information Ordering Code Description AS5048-EK-AB AS5048 Eval Kit Adapter Board Buy our products or get free samples online at: www.ams.com/ICdirect Technical Support is available at: www.ams.com/Technical-Support Provide feedback about this document at: www.ams.com/Document-Feedback For further information and requests, e-mail us at: ams_sales@ams.com...

  • Page 15: Copyrights & Disclaimer

    AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein.
  • Page 16 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: AS5048B-EK-AB-STM1.0 AS5048A-EK-AB-STM1.0 AS5048A-EK-AB...

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