STEVAL-MKI017V1

UM0398 User manual STEVAL-MKI017V1 adapter board for the LIS344AL Introduction The STEVAL-MKI017V1 is an adapter board designed to facilitate the evaluation of the LIS344AL three-axis analog output linear accelerometer. The board offers an effective solution for fast system prototyping and device evaluation directly within the user’s own application. The STEVAL-MKI017V1 can be plugged into a standard DIL 24 socket. The adapter provides the complete LIS344AL pinout and comes ready-to-use with the required decoupling capacitors on the Vdd power supply line. The pinout of the adapter is fully compatible with all other available adapter boards, making it possible to switch from one sensor to another easily during device evaluation without the need for board redesign. This user manual provides information on the STEVAL-MKI017V1 adapter only. For details regarding the LIS344AL specifications, please refer to the datasheet for the device. June 2008 Rev 2 1/5 www.st.com Adapter board layout and pin description 1 UM0398 Adapter board layout and pin description A photograph of the adapter board is shown in Figure 1, together with an illustration of the top silk-screen layer and the board layout. Figure 1. Adapter board photograph, top silk-screen layer and board layout Pin #1 In addition to the MEMS sensor, the adapter board includes two filtering capacitors (10 µF and 100 nF, respectively) on the analog Vdd power supply line. The pin description of the STEVAL-MKI017V1 is provided in Table 1. Table 1. STEVAL-MKI017V1 pin description Adapter board pin # Pin name Function 1 Vdd Power supply 2-3, 5, 7, 9-12, 14-15, 17-24 NC Not connected 4 Voutx Output voltage X channel 6 Vouty Output voltage Y channel 8 Voutz Output voltage Z channel 13 GND 0 V supply 16 ST Self-test (logic 0: normal mode; logic 1: self-test) For additional information regarding the use of the LIS344AL 3-axis accelerometer, please refer to the device datasheet. 2/5 UM0398 Schematic and connection diagram Figure 2. Schematic and connection diagram for the STEVAL-MKI017V1 P01 + C2 10uF C1 100nF P01 U1 LIS344AL 13 14 16 15 P01 P13 NC VoutX ST NC 4 VoutY GND GND NC VoutZ GND NC 12 P04 11 10 9 P06 1 2 3 4 5 6 7 8 9 10 11 12 JP2 24 23 22 21 20 19 18 17 16 15 14 13 P24 P23 P22 P21 P20 P19 P18 P17 P16 P15 P14 P13 P13 8 R1 0R P08 5 Header 12 Header 12 7 3 NC P13 P13 VDD NC 2 GND P16 6 1 P13 P17 Res JP1 P01 P02 P03 P04 P05 P06 P07 P08 P09 P10 P11 P12 P18 2 Schematic and connection diagram 3/5 Revision history 3 UM0398 Revision history Table 2. 4/5 Document revision history Date Revision Changes 15-Feb-2007 1 Initial release. 24-Jun-2008 2 Modified Figure 1 and Figure 2. Minor text changes. UM0398 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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