March 2009 Rev 3 1/20
UM0542
User manual
STEVAL-IFS002V2
STR9 MEMS demonstration board
1 Introduction
This user manual describes the STEVAL-IFS002V2 STR9 MEMS demonstration board
hardware. As well as the block diagram and schematics of the demonstration board, a bill
of materials and assembly instructions are also included.
The STR9 MEMS demonstration board provides an STR9 dongle-based application with
a MEMS sensor. MEMS (micro-electro-mechanical system) exploits the mechanical
properties of silicon to create movable structures that, in the case of MEMS-based motion
sensors, are able to sense motion (acceleration or vibration) in distinct directions.
The demonstration board used here can be assembled with several types of digital MEMS
sensors as well as analog ones. For data storage, there is assembly space for ST serial
Flash. The integration of voltage regulators and operational amplifiers is optional and
depends on the intended chip usage.
Figure 1. STR9 MEMS demonstration board
ww w.st.com
Contents UM0542
2/20
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 STR9 MEMS demonstration board block diagram . . . . . . . . . . . . . . . . . 5
3 STR9 MEMS demonstration board schematics . . . . . . . . . . . . . . . . . . . 6
4 MEMS footprints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 LGA8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2 LGA14 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3 LGA16 (D) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4.4 LGA16 (A) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.5 QFN28 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Bill of materials and assembly instructions . . . . . . . . . . . . . . . . . . . . . 14
6.1 Assembly information for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Assembly information for digital MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.3 Assembly information for serial memory . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
UM0542 List of tables
3/20
List of tables
Table 1. Mechanical data (LGA8 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 2. Mechanical data (LGA14 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 3. Mechanical data (LGA16 (D) package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 4. Mechanical data (LAG16 (A) package). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 5. Mechanical data (QFN28 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 6. Voltage regulator for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 7. Voltage regulator for digital MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 8. Voltage regulator for memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 9. Analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 10. Digital MEMS, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 11. Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 12. Operational amplifier X-axe for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 13. Operational amplifier Y-axe for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 14. Operational amplifier Z-axe for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 15. Operational amplifier XYZ-axes for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 16. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

STEVAL-IFS002V2

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Acceleration Sensor Development Tools NEW MEMS MOD STR9 DONGLE LIS3LV02DL
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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