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MC3413 Preliminary Datasheet (APS-048-0029v1.5)

MC3413 Preliminary Datasheet (APS-048-0029v1.5)
MC3413 Preliminary Datasheet (APS-048-0029v1.5)

GENERAL DESCRIPTION

The MC3413 is a low-noise, integrated digital output 3-axis accelerometer with a feature set optimized for cell phones and consumer product motion sensing. Applications include user interface control, gaming motion input, electronic compass tilt compensation for cell phones, game controllers, remote controls and portable media products.

Low noise and low power are inherent in the monolithic fabrication approach, where the MEMS accelerometer is integrated in a single-chip with the electronics integrated circuit.

In the MC3413 the internal sample rate can be set from 0.25 to 256 samples / second. Specific tap or sample acquisition conditions can trigger an interrupt to a remote MCU. Alternatively, the device supports the reading of sample and event status via polling. FEATURES

Range, Sampling & Power

?±2,4,8,12 or 16g ranges

?8, 10 or 14-bit resolution

?0.25 - 256 samples/sec

?50 - 130 μA typical current

Event Detection

?Low-noise architecture minimizes false triggering

?Independent X,Y,Z Tap

Simple System Integration

?I2C interface, up to 400 kHz

? 2 × 2 × 0.92 mm 12-pin package ?Pin-compatible to Bosch BMA2xx ?Single-chip 3D silicon MEMS

?<200μg / √Hz noise

TABLE OF CONTENTS

1Order Information (4)

1Functional Block Diagram (5)

2Packaging and Pin Description (6)

2.1Package Outline (6)

2.2Package Orientation (7)

2.3Pin Description (8)

2.4Typical Application Circuit (9)

2.5Tape and Reel (10)

3Specifications (12)

3.1Absolute Maximum Ratings (12)

3.2Sensor Characteristics (13)

3.3Electrical and Timing Characteristics (14)

3.3.1Electrical Power and Internal Characteristics (14)

3.3.2I2C Electrical Characteristics (15)

3.3.3I2C Timing Characteristics (16)

4General Operation (17)

4.1Sensor Sampling (17)

4.2Offset and Gain Calibration (17)

4.3Tap Detection (17)

5Operational States (18)

6Operational State Flow (19)

7Interrupts (20)

7.1Enabling and Clearing Interrupts (20)

7.2ACQ_INT Interrupt (20)

8Sampling (21)

8.1Continuous Sampling (21)

9I2C Interface (22)

9.1Physical Interface (22)

9.2Timing (24)

9.3I2C Message Format (24)

9.4Watchdog Timer (25)

10Register Interface (26)

10.1Register Summary (27)

10.2SR Status Register (29)

10.3OPSTAT Device Status Register (30)

10.4INTEN Interrupt Enable Register (31)

10.5MODE Register (32)

10.6SRTFR Sample Rate and Tap Feature Register (33)

10.7TAPEN Tap Control Register (34)

10.8TTTRX,TTTRY, TTTRZ X, Y and Z Tap Duration and Threshold Registers (35)

10.9XOUT_EX, YOUT_EX & ZOUT_EX X, Y, Z-Axis Acceleration Registers (36)

10.10OUTCFG Output Configuration Register (37)

10.11X-Axis Offset Registers (38)

10.12Y-Axis Offset Registers (39)

10.13Z-Axis Offset Registers (40)

10.14X-Axis Gain Registers (41)

10.15Y-Axis Gain Registers (42)

10.16Z-Axis Gain Registers (43)

10.17PCODE Product Code (44)

11Index of Tables (45)

12Revision History (46)

13Legal (47)

2.5 TAPE AND REEL

Devices are shipped in reels, in standard cardboard box packaging. See Figure 6. MC3413 Tape Dimensions and Figure 7. MC3413 Reel Dimensions.

?Dimensions in mm.

?10 sprocket hole pitch cumulative tolerance ±0.2

?Pocket position relative to sprocket hole measured as true position of pocket, not pocket hole.

Figure 6. MC3413 Tape Dimensions

Figure 7. MC3413 Reel Dimensions

Figure 8. I2C Interface Timing

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