ST STEVAL-IFS002V2 Manuel utilisateur

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

www.st.com

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Contents UM0542

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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

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UM0542 List of tables

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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

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List of figures UM0542

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List of figures

Figure 1. STR9 MEMS demonstration board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Figure 2. STR9 MEMS demonstration board block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Figure 3. Schematics - analog and digital MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 4. Schematics - I

C/SPI Flash/EEPROM device, amplifier, stabilizators . . . . . . . . . . . . . . . . . 7

Figure 5. MEMS footprint (LGA8 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Figure 6. MEMS footprint (LGA14 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 7. MEMS footprint (LGA16 (D) package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Figure 8. MEMS footprint (LAG16 (A) package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Figure 9. MEMS footprint (QFN28 package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 10. Top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 11. Bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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UM0542 STR9 MEMS demonstration board block diagram

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2 STR9 MEMS demonstration board block diagram

This board is based on STR9 dongle. The main board features are the following:

●

Analog MEMS:

– LGA8 (LIS2L02AL, LIS2L06AL, LIS3L02AL, LIS3L06AL)

– LGA14 (LIS302ALB)

– LGA16 (LIS3L02AL3)

●

Digital MEMS:

– LGA14 (LIS302DL)

– LGA16 (LIS3LV02DL)

– QFN28 (LIS3L02DQ, LIS3LV02DQ)

●

Serial Flash/EEPROM device

– SO8 (M95xx, M25xx, M34xx)

●

Voltage regulator

– SOT23-5L (LD2980CMxx)

●

Operational amplifier

– SOT23-5L (TS507ILT)

Figure 2 shows the STR9 MEMS demonstration board block diagram.

Figure 2. STR9 MEMS demonstration board block diagram

ANALOG_CONNECTOR

10 x GPIO

8 x Ain

2 x ExtINT

OA OA OA OA STAB

LGA14 LGA8 LGA16

LGA14 QFN28 LGA16 MEMORY

STAB STAB

DIGITAL_CONNECTOR

16 x GPIO

I2C and SPI

2 x ExtINT

xy zmix

Analog MEMS

Digital MEMS

I2CSPI

AM00333

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STR9 MEMS demonstration board schematics UM0542

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3 STR9 MEMS demonstration board schematics

Figure 3. Schematics - analog and digital MEMS

P55

P80 P81

P82 P83

P22 P84

P23 P85

P24 P86

P87 P25

P26

1 2

3 4

5 6

7 8

910

11 12

13 14

15 16

17 18

19 20

CN4

DIGITAL_CON

P41

P42

P43

P44

P45

P46

P47

P77

P76

1 2

3 4

5 6

7 8

910

11 12

13 14

15 16

17 18

19 20

CN5

ANALOG_CON

P40

3.3 V

P54

3.3 V

RES(VDD)1

RES(VDD)2

S0 3

S1 4

ST 5

PD 6

VOUTX

VOUTY

VOUTZ

GND

VOUT

Aux_in

VDD

13 RES(Vdd)

LIS302ALB

Vdd_io 1

GND 2

GND 4

GND 5

INT_1

INT_2

GND

SDO

SDA/SD

SCL_SPC

14 U4

LIS302DL

VCC

P40-MEMS

P41-MEMS

P42-MEMS

P43-MEMS 46

P47

P44

P76

P55

P54

SCL_SPC

I2C1_DATA

SSP0_MISO

SSP0_MOSI

I2C1_CLK

I2C1_DATA

SSP0_SCLK

SSP0_MOSI

SSP0_MISO

SDA/ SDI

SDA/SDI

SSP0_SCLKI 2C1_CLK SCL_SPC

FS/NC

ST 1

FS/NC 2

GND 3

RES

LIS3/2L06/2AL

P40-MEMS

P41-MEMS

P45

P44

P42-MEMS

RDY/INT 1

SDO 2

SDA/SDI/SDO 3

VDD_io 4

SCL/SPC 5

CS 6

GND

RES

GND

RES

GND

LIS3LV02DL

SSP0_MISO

P54

SDA/SDI

SCL_SPC

P82

P80

ANALOG MEMS

DIGITAL MEMS

GND1

ST 4

RES

GND

LIS3LV02AL3

P40-MEMS

P44

P41-MEMS

P77

P42-MEMS

P45

GND

RES

GND

RDY/INT

SDO

SDASDI/SDO

Vdd_io

SCL/SPC

GND

RES

28 U5

LIS3LV02DQ

SSP0_MISO

SDA/SDI SCL_SPC

P81

P55

C10

100 nF

C20

100 nF

C30

100 nF

C40

100 nF

C50

100 nF

C51

100 nF

C52

100 nF

C41

100 nF

C61

100nF

R01 4.7 kΩ

R02 4.7 kΩ

C11

2.2 µF

C21

2.2 µF

C31

2.2 µF

3.3 V

P27

R03 4.7 kΩ

AM00334

VCC

VCC VDD

VCC

VDD VDD

VDD

VDD VDD

VDD

VCC

VOUTX

VOUTY VOUTZ

VOUTY

VOUTX

VOUTZ

VCC

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UM0542 STR9 MEMS demonstration board schematics

7/20

Figure 4. Schematics - I

C/SPI Flash/EEPROM device, amplifier, stabilizators

HOLD^/RESET^/WC 7

C/C/SCL 6

D/D/SDA 5

S^/S^/E0

Q/Q/E1

W^/TSL^/E2

VSS

M95xx/M25xx/M34xx

M95xx/M25xx/M34xx Vmm

SDA/SDI

SSP0_MISO

SCL_SPC

P87

P85

P86

I2C/SPI Flash / EEPROM device

STABILIZATOR FOR ANALOG MEMS (O PTIONAL)

OPERATIONAL AMPLIFIER

C80

100 nF

C81

100 nF

C82

100 nF

VCC

P42

P41

P40

P42

P41

P40

R80

0 Ω

R81

0 ΩR82

0 Ω

P40-MEMS P41-MEMS P42-MEMS

OUT

GND

IN+

IN– 4

U80

TS507ILT

OUT

GND

IN+

IN– 4

U81

TS507ILT

OUT

GND

IN+

IN– 4

U82

TS507ILT

VIN

GND

INHI BIT

VOUT 5

NC 4

U10

LD2980CMxx

3.3 V

X7R

C101

2.2 µF

X7R

C100

1 µF

C70

100 nF

C102

10 nF

Vmm

R100

0 Ω

3.3 V

STABILIZATOR FOR DIGITAL MEMS (O PTIONAL)

VIN

GND

INHIBIT

NC 4

U11

LD2980Cxx

3.3 V

X7R

C111

2.2 µF

X7R

C110

1 µF C112

10 nF

R110

0 Ω

3.3 V

STABILIZATOR FOR MEMORY (OPTIONAL)

VIN

GND

INHIBIT

VOUT 5

NC 4

U13

LD2980CMxx

Vmm3.3 V

3.3 V

X7R

C131

2.2 µF

X7R

C130

1 µF C132

10 nF

Vmm

R130

0 Ω

Vmm

3.3 V

P43

R83

0 Ω

P43-MEMS

OUT

GND

IN+

IN– 4

U83

TS507ILT

C83

100 nF

C84

10 nF

C85

10 nF C86

10 nF

C87

10 nF

R85

10 kΩ

R84

10 kΩ

R87

10 kΩ

R86

10 kΩ

R89

10 kΩ

R88

10 kΩ

R91

10 kΩ

R90

10 kΩ

C71

10 nF

X7R

C103

10 µF

AM00339

VCC VCC VCC VCC

VCC VCC VCC

VCC

VDD

VCC

VDD

VOUT

VDD

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MEMS footprints UM0542

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4 MEMS footprints

4.1 LGA8 package

Figure 5. MEMS footprint (LGA8 package)

Table 1. Mechanical data (LGA8 package)

Symbol Dimension Unit

Xs 0.79 mm

Ys 1.35 mm

Xm 1.81 mm

Ym 1.81 mm

Yd 1.27 mm

Height 5.0 mm

Width 5.0 mm

ai14147

Width

Height

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UM0542 MEMS footprints

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4.2 LGA14 package

Figure 6. MEMS footprint (LGA14 package)

Table 2. Mechanical data (LGA14 package)

Symbol Dimension Unit

Xs 0.64 mm

Ys 0.975 mm

Xm 2.0 mm

Ym 1.0 mm

Xd 0.8 mm

Height 3.0 mm

Width 5.0 mm

ai14148

Width

Height

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MEMS footprints UM0542

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4.3 LGA16 (D) package

Figure 7. MEMS footprint (LGA16 (D) package)

Table 3. Mechanical data (LGA16 (D) package)

Symbol Dimension Unit

Xs 0.65 mm

Ys 0.975 mm

Xm 3.25 mm

Ym 1.7 mm

Xd 1.0 mm

Yd 1.0 mm

Height 4.4 mm

Width 7.5 mm

ai14149

Width

Height

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