ST STEVAL-IFS002V1 User manual

November 2007 Rev 3 1/17
UM0376
User manual
STEVAL-IFS002V1
STR9 MEMS extension
Introduction
This user manual describes the STEVAL-IFS002V1 STR9 MEMS extension hardware. As
well as the block diagram and schematics of the extension, a bill of materials and assembly
instructions are also included.
The STR9 MEMS extension 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 extension 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 extension
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Contents UM0376
2/17
Contents
1 STR9 MEMS extension Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 MEMS footprints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 LGA8 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 LGA14 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 LGA16 (D) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 LGA16 (A) package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5 QFN28 package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5 Bill of materials and assembly instructions . . . . . . . . . . . . . . . . . . . . . 11
5.1 Assembly information for analog MEMS . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Assembly information for digital MEMS . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Assembly information for serial memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
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UM0376 STR9 MEMS extension Block diagram
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1 STR9 MEMS extension 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 memory
– SO8 (M95xx, M25xx, M34xx)
●Voltage regulator
– SOT23-5L (LD2980CMxx)
●Operational amplifier
– SOT23-5L (TS507ILT)
Figure 2 shows the dongle block diagram.
Figure 2. STR9 dongle 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 & SPI
2 x ExtINT
xy zmix
Analog MEMS
Digital MEMS
I2CSPI
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Schematics UM0376
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2 Schematics
Figure 3. STR9 dongle schematics
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
Title
Number RevisionSize
A3
Date: 21.2.2007 Sheet of File: D:\STR9_DONGLE\..\STR9_MEMS_MODULE.SchDocDrawn By:
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
3V3
P54
3V3
RES(Vdd) 1 RES(Vdd) 2
S0 3 S1 4
ST 5
PD 6
Voutx
7
Vouty
8
Voutz
9
GND
10
Vout
11
Aux_in
12
Vdd
13
RES(Vdd) 14
U1 LIS302ALB
Vdd_io 1
GND 2
Vcc 3
GND 4
GND 5
Vcc 6
CS
7
INT_1
8
INT_2
9
GND
10
GND
11
SDO
12
SDA/SDI
13
SCL_SPC 14
U4 LIS302DL
Vcc
Vcc
P40mems
P41mems P42mems P43mems P46
P47 P44 P76
Vcc
VddVddVdd
P55
P54
SCL_SPC
I2C1_DATA
SSP0_MISO
SSP0_MOSI
Vcc 8
HOLD^/RESET^/WC 7
C/C/SCL 6
D/D/SDA 5
S^/S^/E0
1
Q/Q/E1
2
W^/TSL^/E2
3
Vss
4
M95xx/M25xx/M34xx
U7 M95xx/M25xx/M34xx Vmm
I2C1_CLK I2C1_DATA SSP0_SCLK
SSP0_MOSI
SSP0_MISO
SDA/SDI
SSP0_MISO
SCL_SPC
SDA/SDI
SDA/SDI
SSP0_SCLK I2C1_CLK SCL_SPC
P87
P85 P86
Voutx
7
Vouty
6
FS/NC
5
ST 1
Voutz/FS/NC 2
GND 3
Vdd 8 RES
4
LIS3/2L06/2AL
U2 LIS3/2L06/2AL
Vcc
P40mems P41mems P45
P44 P42mems
RDY/INT 1
SDO 2
SDA/SDI/SDO 3
Vdd_io 4
SCL/SPC 5
CS 6
NC
7
CK
8
GND
9
RES
10
Vdd
11
RES
12
Vdd
13
GND
14
RES 15
GND 16
U6 LIS3LV02DL
Vdd
Vdd
SSP0_MISO
P54
SDA/SDI
SCL_SPC
P82
P80
ANALOG MEMS
DIGITAL MEMS
I2C/SPI EEPROM/FLASH MEMORY
STABILIZATOR FOR ANALOG MEMS (OPTIONAL)
GND 1
Vdd 2
Voutx 3
ST 4
Vouty 5
PD
6
Voutz
7
FS
8
RES
9
RES
10
RES
11
Vdd
12
GND
13
NC 14
NC 15
NC 16
U3 LIS3LV02AL3
Vcc
P40mems P44 P41mems
P77
P42mems
P45
Vcc
Vdd
Vdd
Vdd Vdd
NC
1
GND
2
Vdd
3
RES
4
GND
5
RDY/INT
6
NC
7
NC
8
SDO
9
SDASDI/SDO
10
Vdd_io
11
SCL/SPC
12
CS
13
NC
14
NC 15
CK 16
GND 17
RES 18
Vdd 19
RES 20
NC 21
NC 22
NC 23
NC 24
NC 25
NC 26
NC 27
NC 28
U5 LIS3LV02DQ
SSP0_MISO
SDA/SDI
SCL_SPC
P81
P55
OPERATIONAL AMPLIFIER
C10 100nF
C20 100nF
C30 100nF
Vcc
C40 100nF
C50 100nF
C60 100nF
Vdd
C80 100nF
C81 100nF
C82 100nF
Vcc
Vcc Vcc Vcc
P42
P41
P40
P42
P41
P40
R80 0
R81
0R82
0
P40mems P41mems P42mems
OUT
1
GND
2
IN+
3
Vcc 5
IN- 4
U80 TS507ILT
OUT
1
GND
2
IN+
3
Vcc 5
IN- 4
U81 TS507ILT
OUT
1
GND
2
IN+
3
Vcc 5
IN- 4
U82 TS507ILT
Vin
1
GND
2
INHIBIT
3
Vout 5
NC 4
U10 LD2980CMxx
Vcc3V3
3V3
X7R C101 2.2uF
X7R C100 1uF
C70 100nF
C102 10nF
Vmm
Vcc
R100 0
Vcc
3V3
STABILIZATOR FOR DIGITAL MEMS (OPTIONAL)
Vin
1
GND
2
INHIBIT
3
Vout 5
NC 4
U11 LD2980Cxx
Vdd3V3
3V3
X7R C111 2.2uF
X7R C110 1uF C112
10nF
Vdd
R110 0
Vdd 3V3
STABILIZATOR FOR MEMORY (OPTIONAL)
Vin
1
GND
2
INHIBIT
3
Vout 5
NC 4
U13 LD2980CMxx
Vmm3V3
3V3
X7R C131 2.2uF
X7R C130 1uF C132
10nF
Vmm
R130 0
Vmm
3V3
Vcc
P43
P43
R83 0
P43mems
OUT
1
GND
2
IN+
3
Vcc 5
IN- 4
U83 TS507ILT
C83 100nF
C84 10nF
C85 10nF C86
10nF
C87 10nF
Vcc
R85 10k
R84 10k
R87 10k
R86 10k
R89 10k
R88 10k
R91 10k
R90 10k
C51 100nF
C52 100nF
C41 100nF
C61 100nF
C71 10nF
R01 4k7
R02 4k7
Vdd Vdd
X7R C103 10uF
C11
2.2uF
C21
2.2uF
C31
2.2uF
3V3
P27
R03 4k7
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UM0376 MEMS footprints
5/17
3 MEMS footprints
3.1 LGA8 package
Figure 4. MEMS footprint (LGA8 package)
Table 1. Mechanical data
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
Ym
Xm
ai14147
Yd
Ys
Xs Width
Height
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MEMS footprints UM0376
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3.2 LGA14 package
Figure 5. MEMS footprint (LGA14 package)
Table 2. Mechanical data
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
Ym
Xm
ai14148
Ys
Xs Width
Height
Xd
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UM0376 MEMS footprints
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3.3 LGA16 (D) package
Figure 6. MEMS footprint (LGA16 (D) package)
Table 3. LGA16 (D) mechanical data
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
Ym
Xm
ai14149
Ys
Xs Width
Height
Xd
Yd
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MEMS footprints UM0376
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3.4 LGA16 (A) package
Figure 7. MEMS footprint (LAG16 (A) package)
Table 4. Mechanical data
Symbol Dimension Unit
Xs 0.64 mm
Ys 0.975 mm
Xm 2 mm
Ym 2 mm
Xd 0.8 mm
Yd 0.8 mm
Height 5.0 mm
Width 5.0 mm
Ym
Xm
ai14150
Yd
Ys
Xs Width
Height
Xd
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UM0376 MEMS footprints
9/17
3.5 QFN28 package
Figure 8. MEMS footprint (QFN28 package)
1. Draft only. Not all the 28 pins are shown.
Table 5. Mechanical data
Symbol Dimension Unit
Xs 0.5 mm
Ys 0.725 mm
Xm 3.225 mm
Ym 3.225 mm
Xd 0.8 mm
Yd 0.8 mm
Height 7.0 mm
Width 7.0 mm
Ym
Xm
ai14151
Yd
Ys
Xs Width
Height
Xd
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PCB layout UM0376
10/17
4 PCB layout
Figure 9. Top view
Figure 10. Bottom view
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UM0376 Bill of materials and assembly instructions
11/17
5 Bill of materials and assembly instructions
Table 6 to Table 15 show the bill of materials, while sections Section 5.1 to Section 5.3
provide additional information on assembly.
5.1 Assembly information for analog MEMS
1. When U10 LD2980CMxx is not assembled use R100 instead. For low voltage MEMS
use a voltage regulator. The maximum supply current is around 1.5 mA per device.
2. Operational amplifiers are optional.
a) If they are not necessary, use resistors R80, R81, R82, R83 instead.
b) If they are required, use operational amplifiers with the following resistor
configuration.
R80, R81, R82, R83 - not assembled
R84, R86, R88, R90 - not assembled
R85, R87, R89, R91 - assembled with 0R.
c) To alter the gain of the operational amplifiers, use following resistor configuration.
R80, R81, R82, R83 - not assembled
The gain is determined by configuration of R84, R86, R88, R90 and R85, R87,
R89, R91.
d) In all cases it is recommended to have assembled filtering capacitors C84, C85,
C86, C87. Default is 10 nF, but this can be changed according to the required
filtering features.
3. Only ONE analog MEMS can be assembled. MEMS analog output pins are shared.
5.2 Assembly information for digital MEMS
1. When U11 LD2980CMxx is not assembled, use R110 instead. For low voltage MEMS
use a voltage regulator. Maximum supply current is around 1.5 mA per device.
2. Both I2C and SPI are wired.
a) The unused interface must be selected as floating input or third state.
b) When using I2C, it is recommended to have assembled resistors R01 and R02
which are 4.7 kΩpull-ups.
c) When using SPI, each device has its own chip select.
3. The board is designed to have one MEMS assembled on the board although I2C and
SPI allows more devices to be used simultaneously. Care should be taken, however
with the RDY/INT pins, as they are shared.
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Bill of materials and assembly instructions UM0376
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5.3 Assembly information for serial memory
1. When U13 LD2980CMxx is not assembled, use R130 instead. All mentioned memories
should be able to operate on 3.3 V. Use a voltage regulator for low voltage memories.
2. U7 supports the following series of ST memories:
M95xx - Serial SPI Bus EEPROM
M25xx - Serial SPI Bus Flash Memory
M34xx - Serial I2C Bus EEPROM
Table 6. Voltage regulator for analog MEMS(1)
Label Comment Footprint Description Assembled Order code
U10 LD2980CMxx SOT23-5L Voltage regulator NO ST: LD2980CMxx
R100 0 0603 Resistor YES GM: R0603-0R
C100 1 µF 0805 Pol. Capacitor NO Farnell: 422-7086 (X7R)
C101 2.2 µF 1206 Pol. Capacitor NO Farnell: 422-7323 (X7R)
C102 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
C103 10 µF 3528_AB_REV2 Pol. Capacitor YES Farnell: 331-3888
B45196H2106K109
1. By default, the voltage regulator is not assembled.
Table 7. Voltage regulator for digital MEMS(1)
Label Comment Footprint Description Assembled Order code
U11 LD2980Cxx SOT23-5L Voltage regulator NO ST: LD2980Cxx
R110 0 0603 Resistor YES GM: R0603-0R
C110 1 µF 0805 Pol. Capacitor NO Farnell: 422-7086 (X7R)
C111 2.2 µF 1206 Pol. Capacitor No Farnell: 422-7323 (X7R)
C112 10 µF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the voltage regulator is not assembled.
Table 8. Voltage regulator for memory(1)
Label Comment Footprint Description Assembled Order code
U13 LD2980CMxx SOT23-5L Voltage regulator NO ST: LD2980CMxx
R130 0 0603 Resistor YES GM: R0603-0R
C130 1 µF 0805 Pol. Capacitor NO Farnell: 422-7086 (X7R)
C131 2.2 µF 1206 Pol. Capacitor NO Farnell: 422-7323 (X7R)
C132 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the voltage regulator is not assembled.
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UM0376 Bill of materials and assembly instructions
13/17
Table 9. Analog MEMS(1)
Label Comment Footprint Description Assembled Order code
CN5 ANALOG_CON HDR2X10STD Header 10X2 YES GM:S2G20
U1 LIS302ALB LGA14AD ANALOG MEMS NO ST: LIS302ALB
C10 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C11 2.2 µF 1206 Pol. Capacitor NO Farnell: 422-7323 (X7R)
U2 LIS3/2L06/2AL LGA8A ANALOG MEMS YES ST: LIS3/2L06/2AL
(LIS3L06AL for MP)
C20 100 nF 0603 Capacitor YES Farnell: 422-6859 (X7R)
C21 2.2 µF 1206 Pol. Capacitor YES Farnell: 422-7323 (X7R)
U3 LIS3LV02AL3 LGA16A ANALOG MEMS NO ST: LIS3LV02AL3
C30 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C31 2.2 µF 1206 Pol. Capacitor NO Farnell: 422-7323 (X7R)
1. By default, the LIS3/2L06/2AL is assembled.
Table 10. Digital MEMS(1)(2)
Label Comment Footprint Description Assembled Order code
CN4 DIGITAL_CON HDR2X10STD Header 10X2 YES GM: BL220G
U4 LIS302DL LGA14AD DIGITAL MEMS NO ST:LIS302DL
C40 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C41 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
U5 LIS3LV02DQ QFN28D DIGITAL MEMS YES ST: LIS3LV02DQ
C50 100 nF 0603 Capacitor YES Farnell: 422-6859 (X7R)
C51 100 nF 0603 Capacitor YES Farnell: 422-6859 (X7R)
U6 LIS3LV02DL LGA16D DIGITAL MEMS NO ST: LIS3LV02DL
C60 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C61 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
R01 4.7 kΩ0603 Resistor YES (I2C) GM: R0603-4k7
R02 4.7 kΩ0603 Resistor YES (I2C) GM: R0603-4k7
R03 4.7 kΩ0603 Resistor YES (SPI) GM: R0603-4k7
1. By default, the I2C interface is used.
2. By default, the LIS3LV02DQ is assembled.
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Bill of materials and assembly instructions UM0376
14/17
Table 11. Memory(1)
Label Comment Footprint Description Assembled Order code
U7 M95xx/M25xx/
M34xx SO8 Serial
FLASH/EEPROM NO ST: M95xx/M25xx/M34xx
C70 10 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C71 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the memory is not assembled.
Table 12. Operational amplifier X-axe for analog MEMS(1)
Label Comment Footprint Description Assembled Order code
U80 TS507ILT SOT23-5L Operational
amplifier NO ST: TS507ILT
R80 0 0603 Resistor YES GM: R0603-0R
R84 10 kΩ0603 Resistor NO GM: R0603-10k
R85 10 kΩ0603 Resistor NO GM: R0603-10k
C80 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C84 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the amplifier is not assembled.
Table 13. Operational amplifier Y-axe for analog MEMS(1)
Label Comment Footprint Description Assembled Order code
U81 TS507ILT SOT23-5L Operational
amplifier NO ST: TS507ILT
R81 0 0603 Resistor YES GM: R0603-0R
R86 10 kΩ0603 Resistor NO GM: R0603-10k
R87 10 kΩ0603 Resistor NO GM: R0603-10k
C81 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C85 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the amplifier is not assembled.
Table 14. Operational amplifier Z-axe for analog MEMS(1)
Label Comment Footprint Description Assembled Order code
U82 TS507ILT SOT23-5L Operational
amplifier NO ST: TS507ILT
R82 0 0603 Resistor YES GM: R0603-0R
R88 10 kΩ0603 Resistor NO GM: R0603-10k
R89 10 kΩ0603 Resistor NO GM: R0603-10k
C82 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C86 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the amplifier is not assembled.
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UM0376 Bill of materials and assembly instructions
15/17
Table 15. Operational amplifier Xyz-axe for analog MEMS(1)
Label Comment Footprint Description Assembled Order code
U83 TS507ILT SOT23-5L Operational
amplifier NO ST: TS507ILT
R83 0 0603 Resistor YES GM: R0603-0R
R90 10 kΩ0603 Resistor NO GM: R0603-10k
R91 10 kΩ0603 Resistor NO GM: R0603-10k
C83 100 nF 0603 Capacitor NO Farnell: 422-6859 (X7R)
C87 10 nF 0603 Capacitor NO Farnell: 422-6938 (X7R)
1. By default, the amplifier is not assembled.
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Revision history UM0376
16/17
6 Revision history
Table 16. Document revision history
Date Revision Changes
19-Jan-2007 1 Initial release.
24-May-2007 2
Figure 3: STR9 dongle schematics, Figure 9: Top view and
Figure 10: Bottom view updated.
Stabilisator replaced by voltage regulator in the whole document.
MEMS footprint figures updated inSection 3 to add height and width.
Bill of materials updated and reorganized in Section 5.
12-Nov-2007 3
Added extension board root part number.
Updated STR9 MEMS extension board photo in Figure 1: STR9
MEMS extension.
Updated R01, R02 and R03 assembling status and Note 1 in
Table 10: Digital MEMS.
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UM0376
17/17
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