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LY530AL;中文规格书,Datasheet资料

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LY530AL

MEMS inertial sensor

single-axis analog and digital output yaw rate gyroscope

Preliminary Data

Features

■■■■■■■■■■■

2.7 V to 3.6 V single supply operationLow power consumptionEmbedded power-down±300°/sec full scaleAbsolute analog rate outputI2C/SPI digital output interfaceIntegrated low-pass filters

Additional high pass filter for digital outputEmbedded self-testHigh shock survivability

ECOPACK® RoHS and “Green” compliant (see Section7)

LGA-16 (5x5x1.5mm)

Description

The LY530AL is a low-power single-axis yaw rate sensor. It includes a sensing element and an IC interface able to provide the measured angular rate to the external world through an analog output voltage and I2C/SPI digital interfaces.The sensing element, capable of detecting the yaw rate, is manufactured using a dedicated micromachining process developed by ST to produce inertial sensors and actuators on silicon wafers.

The IC interface is manufactured using a CMOS process that allows a high level of integration to design a dedicated circuit which is trimmed to better match the sensing element characteristics.

Device summary

Temperature range (°C)

-40 to +85-40 to +85

The output of LY530AL has a full scale of ±300 °/s and is capable of measuring rates with a -3 dB bandwidth up to 88 Hz.

The LY530AL is available in a plastic land grid array (LGA) package and can operate within a temperature range from -40 °C to +85 °C.The LY530AL belongs to a family of products suitable for a variety of applications, including: –Gaming and virtual reality input devices–Motion control with MMI (man-machine interface)

–Image stabilization for digital video and digital still cameras

–GPS navigation systems–Appliances and robotics

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Order codeLY530ALLY530ALTR

PackageLGA-16 (5x5x1.5)LGA-16 (5x5x1.5)

PackingTrayTape and reel

September 2008 Rev 11/30

www.st.com

30This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

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ContentsLY530AL

Contents

Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . 8

2.12.22.32.4

Mechanical characteristics (analog output) . . . . . . . . . . . . . . . . . . . . . . . . 8Mechanical characteristics (digital output) . . . . . . . . . . . . . . . . . . . . . . . . . 8Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4.12.4.2

SPI - serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11I2C - Inter IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.52.6

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.6.12.6.22.6.3

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Zero-rate level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1

Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.14.2

I2C serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1.1

I2C operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

SPI bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.2.14.2.24.2.3

sbO56

elo terP)s(tcudoO -elosbrP tetcudo )(sSPI read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

SPI write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21SPI read in 3-wires mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6.16.26.3

WHO_AM_I (0Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24CTRL_REG (20h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24FILTER_CFG_REG (22h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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LY530ALContents

6.46.56.66.7

OUTPUT_SEL_REG (23h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26STATUS_REG(27h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27OUT_CONV_H(28h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27OUT_CONV_L(29h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

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List of tablesLY530AL

List of tables

Table 1.Table 2.Table 3.Table 4.Table 5.Table 6.Table 7.Table 8.Table 9.Table 10.Table 11.Table 12.Table 13.Table 14.Table 15.Table 16.Table 17.Table 18.Table 19.Table 20.Table 21.Table 22.Table 23.Table 24.Table 25.Table 26.Table 27.Table 28.Table 29.Table 30.Table 31.Table 32.Table 33.

Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Mechanical characteristics @ Vdd = 3.3 V, T = 25 °C unless otherwise noted . . . . . . . . . . 8Mechanical characteristics @ Vdd = 3.3 V, T = 25 °C unless otherwise noted . . . . . . . . . . 8Electrical characteristics @ Vdd =3.3 V, T=25 °C unless otherwise noted. . . . . . . . . . . . . 10SPI slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11I2C slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Absolute maximum ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13PLL low-pass filter components’ values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17I2C terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17SAD+Read/Write patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Transfer when Master is writing one byte to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Transfer when Master is writing multiple bytes to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Transfer when Master is receiving (reading) one byte of data from slave . . . . . . . . . . . . . 19Transfer when Master is receiving (reading) multiple bytes of data from slave . . . . . . . . . 19Registers addresses map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23WHO_AM_I register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24CTRL_REG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24CTRL_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24FILTER_CFG_REG register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25FILTER_CFG_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25High pass filter pole -3dB frequency selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Low pass filter pole -3dB frequency selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25OUTPUT_SEL_REG register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26OUTPUT_SEL_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Filtering selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Forbidden combinations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26STATUS_REG(27h) register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27STATUS_REG(27h) description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27OUT_CONV_H register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27OUT_CONV_L register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

bOelos terP)s(tcudoO -elosbrP tetcudo )(s4/30

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LY530ALList of figures

List of figures

Figure 1.Figure 2.Figure 3.Figure 4.Figure 5.Figure 6.Figure 7.Figure 8.Figure 9.Figure 10.Figure 11.Figure 12.

Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6SPI slave timing diagram (2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11I2C slave timing diagram (4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12LY530AL electrical connections and external components values. . . . . . . . . . . . . . . . . . . 15Read & write protocol. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20SPI read protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Multiple bytes SPI read protocol (2 bytes example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21SPI write protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Multiple bytes SPI write protocol (2 bytes example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22SPI read protocol in 3-wires mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22LGA-16: mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

bOelos terP)s(tcudoO -elosbrP tetcudo )(s 5/30

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Block diagram and pin descriptionLY530AL

1 Block diagram and pin description

Figure 1.

Block diagram

ANALOG OUTPUT+ΩSens+CHARGEAMPLIFIERDEMODULATORSWITCHED CAPACITORLOW-PASSFILTERACTIVELOW-PASSFILTERzSens-Feedback+ANALOGCONDITIONINGFeedback-Drive-VOLTAGEGAINAMPLIFIERDrive+PID controlAUTOMATICGAINCONTROLPLLSELF TESTREFERENCETRIMMINGCIRCUITSCLOCK1.1 Pin description

Figure 2.

Pin connection

+ΩzbOelos

PDST(TOP VIEW)DIRECTION OF THEDETECTABLEANGULAR RATE(BOTTOM VIEW)6/30

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GND terPtcudo)s(SDA_SDI_SDOSDODRCSSCL / SPCO -VDDD1413161FILTVDDVCONTCACTANALOG OUTPUT986VDDAReselosbrP tetcudoPHASE GENERATOR )(s5IF_DISLY530ALTable 2.

Pin #123456789101112

Block diagram and pin description

Pin description

Pin NameFILTVDDVCONTCACTANALOGOUTPUTIF_DISGNDSTPDSCLSPCCSDRSDO

Analog function

PLL filter connection pin #2PLL filter connection pin #1Active filter capacitorRate signal output voltageLeave unconnected0V supply voltage

Self-test (logic 0: normal mode; logic 1: self-test)

Power-down (logic 0: normal

mode; logic 1: power-down mode)Leave unconnectedLeave unconnectedLeave unconnected

Leave unconnected or connect to Vdd

Connect to Vdd

Digital function

PLL filter connection pin #2PLL filter connection pin #1Active filter capacitorLeave unconnected

Digital Interface Selection (See Table19)0V supply voltageLeave unconnectedConnect to Vdd

I2C Serial Clock (SCL)

SPI Serial Port Clock (SPC)

SPI enable

I2C/SPI mode selection (1: I2C mode; 0: SPI mode)DataReady

SPI Serial data output (4-wire mode only)I2C less significant bit of the device address

13141516

SDA_SDI_SDO

ResVDDDVDDA

Digital side Vdd supply

Analog side Vdd supply

bOelos terP(tcudoO - s)elosbI2C Serial Data (SDA)

SPI Serial Data Input (SDI)

3-wire Interface Serial Data OutputConnect to Vdd

rP tetcudo )(sDigital side Vdd supply

Analog side Vdd supply

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Mechanical and electrical specificationsLY530AL

2.1

Table 3.

SymbolFSSoSoDrVoffOffDrNLBWRnVt SupFresTop Wh

Mechanical and electrical specifications

Mechanical characteristics (analog output)

Mechanical characteristics @ Vdd = 3.3 V, T = 25 °C unless otherwise noted(1)

ParameterMeasurement rangeSensitivity

Sensitivity change vs.

From -40 °C to +85 °C

temperatureZero-rate level(3)Zero-rate level change

From -40 °C to +85 °C

vs. temperatureNon linearity(4)-3dB bandwidth

(5)(6)Test conditionMin.

Typ.(2)±3003.341.655±0.8880.1

Max.Unit°/smV/ °/s%V

Best fit straight lineCACT = 10 nF

Rate noise densitySelf-test output voltage change(7)Start-up timeSensing element resonant frequencyOperating

temperature rangeProduct weight

Settling to ±5 °/s

1.The product is factory calibrated at 3.3 V. The operational power supply range is specified in Table5.2.Typical specifications are not guaranteed4.Specified by design

3.Zero rate level is absolute with respect to power supply

5.The product is capable of sensing angular rates extending from DC to the selected bandwidth6.User selectable by external capacitor CACT

7.“Self-test output voltage change” is defined as Vout(Vst = logic 1) - Vout(Vst = logic 0)

bO2.2

elMechanical characteristics (digital output)

osParameterSensitivityZero-rate level(3)Output data rate

Test condition

Min.

terP(tcudoO - s)elosb-40

rP te+3003004.5160

tcudo+85

)(sHz°/s /

HzmVmskHz°Cmg

°/s

% FS

Table 4.

SymbolSoVoffODR

Mechanical characteristics @ Vdd = 3.3 V, T = 25 °C unless otherwise noted(1)

Typ.(2)1.5501

Max.

UnitLSb/ °/sLSbkHz

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LY530ALTable 4.

SymbolVt FresTop Wh

Mechanical and electrical specifications

Mechanical characteristics @ Vdd = 3.3 V, T = 25 °C unless otherwise noted(1)

ParameterSelf-test output change(4)

Sensing element resonant frequencyOperating

temperature rangeProduct weight

-40

160

Test condition

Min.

Typ.(2)2304.5

+85Max.

UnitLSbkHz°Cmg

1.The product is factory calibrated at 3.3 V. The operational power supply range is specified in Table5.2.Typical specifications are not guaranteed

3.The product is capable of sensing angular rates extending from DC to the selected bandwidth

4.“Self test output change” is defined as OUTPUT[LSb](Self-test bit on OUTPUT_SEL_REG=1) OUTPUT[LSb](Self-test bit on

OUTPUT_SEL_REG=0).

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Mechanical and electrical specificationsLY530AL

2.3 Electrical characteristics

Table 5.

SymbolVddIdd_AIdd_DIddPdnVST

Electrical characteristics @ Vdd =3.3 V, T=25 °C unless otherwise noted(1)

Parameter

Supply voltageSupply current (analog)Supply current (digital)Supply current in

power-down modeSelf-test input(Analog use)Power-down input(Analog use)Active low-pass filter capacitor

Output voltage swing(3)Capacitive load drive(3)Operating temperature range

Iout = ±100µA

PD pin connected to VddLogic 0 levelLogic 1 levelLogic 0 levelLogic 1 level

00.8*Vdd

00.8*Vdd100.40.4-40

PD pin connected to GND

Test condition

Min.2.7

Typ.(2)3.34.85.51

0.2*VddVdd0.2*VddVddMax.3.6

UnitVmAmAµAV

VPDCACTOVSCLOADTop

1.The product is factory calibrated at 3.3 V2.Typical specifications are not guaranteed3.Referred to ANALOG OUTPUT pin #6

bOelos terP)s(tcudoO -elosbrP tetcudoVdd-0.410+85

)(snFVnF°C

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LY530AL

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