SPL气压计芯片手册.pdf

发布时间：2022-05-30 发布人：admin 分类：说明书资料大小：1.94M 资料格式：pdf 举报版权申诉

sinat_37385028-10119886-16359648096564985469.pdf-第1页.png

第1页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第2页.png

第2页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第3页.png

第3页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第4页.png

第4页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第5页.png

第5页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第6页.png

第6页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第7页.png

第7页 / 共33页

sinat_37385028-10119886-16359648096564985469.pdf-第8页.png

第8页 / 共33页

文本预览

Preliminary Datasheet- please see the Known Issues list CONFIDENTIAL

Restricted 1. Security warning The information contained in this document is the exclusive property of GoerTek Inc. and should not be disclosed to any third party without the written consent of GoerTek Inc. 2. Publication history Version Date Description Author Approved 1.0 2.0 Version 2.0 2015.5.29 New design Wiming Sammy 2015.8.10 Update product name Wiming Sammy Page 1 / 32 CONFIDENTIAL

Index of Contents 1. PRODUCT OVERVIEW ..........................................................................................................................................4 1.1 1.2 1.3 PRODUCT DESCRIPTION .....................................................................................................................................4 FEATURES .............................................................................................................................................................4 TYPICAL APPLICATIONS ........................................................................................................................................4 2. DEFINITIONS, ACRONYMS AND ABBREVIATIONS .......................................................................................5 2.1 DEFINITIONS .........................................................................................................................................................5 3. PIN CONFIGURATION AND BLOCK DIAGRAM ..............................................................................................6 3.1 3.2 PIN CONFIGURATION AND DESCRIPTION ...............................................................................................................6 BLOCK DIAGRAM .................................................................................................................................................7 4. SPECIFICATIONS ....................................................................................................................................................7 4.1 OPERATING RANGE ...............................................................................................................................................7 4.2 ABSOLUTE MAXIMUM RATINGS ...........................................................................................................................7 4.3 4.4 4.5 4.6 CURRENT CONSUMPTION .....................................................................................................................................8 TEMPERATURE TRANSFER FUNCTION ...................................................................................................................8 PRESSURE TRANSFER FUNCTION ..........................................................................................................................9 TIMING CHARACTERISTICS .................................................................................................................................10 5. FUNCTIONAL DESCRIPTION ............................................................................................................................10 5.1 OPERATING MODES ............................................................................................................................................10 5.2 MEASUREMENT PRECISION AND RATE ................................................................................................................ 11 5.3 5.4 5.5 5.6 SENSOR INTERFACE ............................................................................................................................................ 11 INTERRUPT .......................................................................................................................................................... 11 FIFO OPERATION ................................................................................................................................................12 CALIBRATION AND MEASUREMENT COMPENSATION ..........................................................................................12 5.6.1 5.6.2 5.6.3 How to Calculate Compensated Pressure Values ...................................................................................12 How to Calculate Compensated Temperature Values ................................................................................13 Compensation Scale Factors ......................................................................................................................13 6. APPLICATIONS ......................................................................................................................................................14 6.1 MEASUREMENT SETTINGS AND USE CASE EXAMPLES ...................................................................................14 6.2 APPLICATION CIRCUIT EXAMPLE ........................................................................................................................14 7. REGISTER MAP .....................................................................................................................................................15 8. REGISTER DESCRIPTION ..................................................................................................................................16 8.1 PRESSURE DATA (PRS_BN) ................................................................................................................................16 8.1.1 8.1.2 8.1.3 PRS_B2 ......................................................................................................................................................16 PRS_B1 ......................................................................................................................................................16 PRS_B0 ......................................................................................................................................................17 8.2 TEMPERATURE DATA (TMP_TN) ........................................................................................................................17 Version 2.0 Page 2 / 32 CONFIDENTIAL

8.2.1 8.2.2 8.2.3 TMP_B2 .....................................................................................................................................................17 TMP_B1 .....................................................................................................................................................18 TMP_B0 .....................................................................................................................................................18 8.3 8.4 8.5 8.6 8.7 8.8 8.9 PRESSURE CONFIGURATION (PRS_CFG) ...........................................................................................................18 TEMPERATURE CONFIGURATION (TMP_CFG) ...................................................................................................20 SENSOR OPERATING MODE AND STATUS (MEAS_CFG) .................................................................................21 INTERRUPT AND FIFO CONFIGURATION (CFG_REG).........................................................................................22 INTERRUPT STATUS (INT_STS) ..........................................................................................................................23 FIFO STATUS (FIFO_STS) .................................................................................................................................24 SOFT RESET AND FIFO FLUSH (RESET).............................................................................................................25 8.10 PRODUCT AND REVISION ID (ID) ........................................................................................................................25 8.11 CALIBRATION COEFFICIENTS (COEF) ................................................................................................................26 8.12 COEFFICIENT SOURCE .........................................................................................................................................26 9. PACKAGE DIMENSIONS .....................................................................................................................................27 10. STORAGE AND TRANSPORTATION .............................................................................................................28 11. SOLDERING RECOMMENDATION ..............................................................................................................29 12. PACKAGE SPECIFICATIONS .........................................................................................................................30 13. KNOWN ISSUES LIST .......................................................................................................................................31 Version 2.0 Page 3 / 32 CONFIDENTIAL

1. Product Overview 1.1 Product Description The SPL06-001 is a miniaturized Digital Barometric Air Pressure Sensor with a high accuracy and a low current consumption. The SPL06-001 is both a pressure- and a temperature sensor. The pressure sensor element is based on a capacitive sensing principle which guarantees a high precision during temperature changes. The small package makes the SPL06-001 ideal for mobile applications and wearable devices. The SPL06-001 ‘s internal signal processor converts the output from the pressure and temperature sensor elements to 24-bit results. Each pressure sensor has been calibrated individually and contains calibration coefficients. The coefficients are used in the application to convert the measurement results to true pressure and temperature values. The SPL06-001 has a FIFO that can store the latest 32 measurements. By using the FIFO, the host processor can remain in a sleep mode for a longer period of time between readouts. This can reduce the overall system power consumption. Sensor measurements and calibration coefficients are available through the serial I2C or SPI interface. 1.2 Features • Operation range: Pressure: 300 – 1200 hPa. Temperature: -40 – 85 °C. • Pressure sensor precision: ± 0.006 hPa (or ±5 cm) (high precision mode). • Pressure sensor accuracy: ± 0.06 hPa (or ±50 cm) (non-linearity), ±1 hPa (or ±8 m) (absolute). • Temperature accuracy: ± 0.5°C. • Pressure temperature sensitivity: < 0.5Pa/K • Measurement time: Typical: 28 ms. Minimum: 3 ms. • Average current consumption: High precision: 60 µA, Low power: 3 µA, Standby: <1 µA. • Supply voltage: VDDIO: 1.2 – 3.6 V, VDD: 1.7 – 3.6 V. • Operating modes: Command (manual), Background (automatic), and Standby. • Calibration: Individually calibrated with coefficients for measurement correction. • FIFO: Stores latest 32 pressure or temperature measurements. • Interface: I2C and SPI (both with optional interrupt) • Package dimensions: 8-pin LGA, 2.0 mm x 2.5 mm x 0.95mm. 1.3 Typical Applications • Indoor Navigation (floor detection e.g. in shopping malls and parking garages) • Health and Sports (accurate elevation gain and vertical speed) • Outdoor Navigation (GPS start-up time and accuracy improvement, dead-reckoning e.g. in tunnels) • Weather Station ('Micro-weather' and local forecasts) Version 2.0 Page 4 / 32 CONFIDENTIAL

2. Definitions, acronyms and abbreviations 2.1 Definitions An explanation of terms and definitions used in this datasheet. Table 1 Term Definition/explanation Absolute accuracy The absolute measurement accuracy over the entire measurement range. Digital bit depth Digital resolution The total bit depth used for conversion of the sensor input to the digital output. Measured in bits. The pressure value represented by the LSB change in output. This value should be much smaller than the sensor noise. Full Scale Range (FSR) The peak-to-peak measurement range of the sensor. LSB Measurement time MSB Non-linearity Output compensation Precision (noise) Pressure temperature coefficient Sensor calibration Least Significant Bit The time required to acquire one sensor output result. This value determines the maximum measurement rate. Most Significant Bit The deviation of measured output from the best-fit straight line, relative to 1000 hPa and 25 °C. The process of achieving more accurate results by compensating the measurement results for the sensor's inherent inaccuracy. The compensated results are calculated by applying a compensation algorithm (which includes the calibration coefficients) to the measured results. The smallest measurable change, expressed as rms, after sensor oversampling. The pressure measurement deviation, after compensation, from expected measurement value due to temperature change from 25 °C. Measured in Pa/K. The process, during the production test, where the sensor's measurement results are compared against reference values, and a set of calibration coefficients are calculated from the deviation. The coefficients are stored in the sensor's memory and are used in the output compensation. Sensor oversampling rate Specifies the number of sensor measurements used internally to generate one sensor output result. Version 2.0 Page 5 / 32 CONFIDENTIAL

3. Pin Configuration and Block Diagram 3.1 Pin Configuration and Description VDD GND VDDIO SDO GND CSB SDA SCK Figure 1 Pin configuration (top view, figure not to scale) SPI 3-wire with interrupt SPI 4-wire I2C I2C with interrupt Ground Chip select - active low Chip select - active low Chip select - active low Not used - open (internal pull-up) or tie to VDDIO Not used - open (internal pull- up) or tie to VDDIO SDA Serial data in/out Serial data in/out Serial data in Serial data in/out SCK Serial Clock SDO Not used Interrupt Serial data out Least significant bit in the device address. Serial data in/out pin Interrupt least and significant bit in the device address. VDDIO GND VDD Digital supply voltage for digital blocks and I/O interface Ground Supply voltage for analog blocks Table 2 Pin description Pin Name SPI 3-wire GND CSB 1 2 3 4 5 6 7 8 Version 2.0 Page 6 / 32 CONFIDENTIAL

3.2 Block Diagram 4. Specifications 4.1 Operating Range Figure 2 The following operating conditions must not be exceeded in order to insure correct operation of the device. All parameters specified in the following sections refer to these operating conditions, unless noted otherwise. Table 3 Operating Range Parameter Symbol Values Unit Note / Test Condition Min. Typ. Max. Pressure Temperature Supply voltage Supply voltage IO Pa Ta VDD VDDIO 300 -40 1.7 1.2 Supply voltage ramp-up time tvddup 0.001 1200 hPa 85 3.6 3.6 5 °C V V ms Time for supply voltage to reach 90% of final value. 4.2 Absolute Maximum Ratings Maximum ratings are absolute ratings. Exceeding any one of these values may cause irreversible damage to the integrated circuit. Attention: Stresses above the values listed as "Absolute Maximum Ratings" may cause permanent damage to the Version 2.0 Page 7 / 32 CONFIDENTIAL

分享到：

赞收藏

资料库

SPL气压计芯片手册.pdf

相关推荐

开发技术

热门标签

最新资料