Eval Kit Manual DN[Document ID] AS5115 Adapter Board AS5115-AB ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 1 Document Feedback AS5115 Adapter Board Table of Contents 1 Introduction .......................................................................................................................... 3 1.1 Kit Content ........................................................................................................................... 3 2 Board description ................................................................................................................. 4 2.1 Mounting the AS5115 adapter board ................................................................................... 5 3 AS5115 adapter board and pinout ....................................................................................... 6 4 Operation case ..................................................................................................................... 7 4.1 Standalone sine-cosine output ............................................................................................. 7 4.2 Programming of the AS5115 ................................................................................................ 8 5 AS5115-AB Hardware .......................................................................................................... 9 5.1 AS5115-AB schematics ....................................................................................................... 9 5.2 AS5115-AB PCB layout ..................................................................................................... 10 6 Ordering & Contact Information ......................................................................................... 11 7 Copyrights & Disclaimer ..................................................................................................... 12 Revision History Revision Date 1.0 05.03.2010 1.1 10.12.2014 Owner Description Initial version mzie ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Updated to new corporate template Page 2 Document Feedback AS5115 Adapter Board 1 Introduction The AS5115 adapter board is a small PCB allowing simple and quick testing or evaluation of the AS5115 magnetic position sensor without the need to build a test fixture or design an own PCB. 1.1 Kit Content Figure 1: Kit content 1 Pos. Item Comment 1 AS5115-AB Adapter board ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 3 Document Feedback AS5115 Adapter Board 2 Board description JP1 has to be populated with a 1x8 pin header and is required for power supply as well as programming and signal output. The connector JP2 provides acces to PROG, CM_COS and CM_SIN. Resistor R1 (100k) is used as Pull-up on CS pin and capacitor C1 (2.2uF) is placed between VDD and GND. Figure 2: AS5115 adapter board JP1 connector (Not populated) 4x2.6mm Mounting holes AS5115 JP2 connector (Not populated) ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 4 Document Feedback AS5115 Adapter Board 2.1 Mounting the AS5115 adapter board Figure 3: Mounting and dimensions 0.5-3mm AS5115 22mm GND 5V CLK CS DIO SIN COS PROG CM_COS AS5115 11mm 28mm 4x2.6mm CM_SIN A 6x2.5mm diametric magnet must be placed over or under the AS5115 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. Materials as brass, copper, aluminum, stainless steel are the best choices to make this part. ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 5 Document Feedback AS5115 Adapter Board 3 AS5115 adapter board and pinout Figure 4: AS5115 adapter board and sensor pinout 5V CLK CS DIO SIN 1 16 VDD CS 2 15 TB0 DIO 3 14 TB1 TC 4 13 TB2 A_TST 5 12 TB3 PROG 6 11 COSN/COSP/CM_COS VSS 7 10 COSP/COSN SINP/SINN 8 9 SINN/SINP/CM_SIN COS AS5115 GND DCLK PROG CM_COS AS5115 CM_SIN Pin# Board Pin# AS5115 Symbol board Type JP1 - 1 7 GND Power supply Ground JP1 - 2 16 5V Power supply Positive supply voltage JP1 - 3 1 CLK Digital input Clock for digital interface JP1 - 4 2 CS Digital input Chip select for digital interface (active low) JP1 - 5 3 DIO Digital input Data I/O for digital interface JP1 - 6 8 SIN Digital input Switchable buffered analog outputs JP1 - 7 10 COS Analog output Switchable buffered analog outputs JP2 - 1 6 PROG Power supply OTP programming pad JP2 - 2 11 CM_COS Analog output Switchable buffered analog outputs JP2 - 3 9 CM_SIN Analog output Switchable buffered analog outputs ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Description Page 6 Document Feedback AS5115 Adapter Board 4 Operation case 4.1 Standalone sine-cosine output The AS5115 provides analog Sine and Cosine outputs (JP1 – 6 and JP1 – 7). These outputs allow the user to perform the angle calculation by an external ADC + μC, e.g. to compute the angle with a high resolution. The signal lines should be as short as possible, longer lines should be shielded in order to achieve best noise performance. Through the programming of one bit, you have the possibility to choose between the analog Sine and Cosine outputs (SINP, COSP) and their inverted signals (SINN, COSN). Furthermore, by programming the bits <9:10> you can enable the common mode output signals of SIN and COS (JP2 – 2 and JP – 3). The DC bias voltage is 1.5 or 2.5 V. For further information, please refer to datasheet. Figure 5: Standalone sine-cosine output 5V Analog In GND Analog In VDD Regulated Power Supply GND MCU/ADC SIN COS 5V GND CLK CS DIO PROG CM_COS AS5115 CM_SIN ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 7 Document Feedback AS5115 Adapter Board 4.2 Programming of the AS5115 For programming of the OTP, an additional voltage has to be applied to the pin PROG. It has to be buffered by a fast 100nF capacitor (ceramic) and a 10μF capacitor (as close as possible to PROG pin). Programming of the AS5115 OTP memory does not require a dedicated programming hardware. The programming can be simply accomplished over the serial 3-wire interface. For permanent programming (command PROG OTP, #25), a constant DC voltage of 8.0 – 8.5V (=100mA) must be connected to PROG. For temporary OTP write (“soft write”; command WRITE OTP, #31), the programming voltage is not required. For further information, please refer to datasheet. Figure 6: Programming of the AS5115 VDD CLK CS DIO Regulated Power Supply GND MCU/ADC GND 5V CLK CS DIO 5V GND SIN COS 8 – 8,5V PROG CM_COS AS5115 CM_SIN ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 8 Document Feedback AS5115 Adapter Board 5 5.1 AS5115-AB Hardware AS5115-AB schematics Figure 7: AS5115-AB schematics ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 9 Document Feedback AS5115 Adapter Board 5.2 AS5115-AB PCB layout Figure 8: AS5115-AB PCB layout JP1 11mm d=2.6mm AS5115-AB-1.1 27-08-2013 28mm GND 5V CLK CS DIO SIN COS PROG U1 R1 CM_COS C1 CM_SIN JP2 18mm 22mm ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 10 Document Feedback AS5115 Adapter Board 6 Ordering & Contact Information Ordering Code Description AS5115-AB AS5115 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: [email protected] For sales offices, distributors and representatives, please visit: www.ams.com/contact Headquarters ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten Austria, Europe Tel: +43 (0) 3136 500 0 Website: www.ams.com ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 11 Document Feedback AS5115 Adapter Board 7 Copyrights & Disclaimer Copyright ams AG, Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria-Europe. 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No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services. ams Eval Kit Manual, Confidential [v1-1] 2014-Nov-18 Page 12 Document Feedback