Figure 10 Application Circuit Example using the SPI 3-wire with interrupt interface

Table 11

Component Values

Component

Symbol

Values

Unit Note / Test Condition

Min.

Typ.

Max.

Pull-up/down Resistor

10

KΩ

100

KΩ

the address to 0x76 instead

of 0x77.

Supply Blocking Capacitor

100

100

nF

The blocking capacitors

should be placed as close

to the package pins as

possible.

5.3

IIR filtering

The air pressure is slowly changing due to weather conditions or short term changing like air turbulence created

by a fan, slamming a door or window. All these disturbances can be suppressed or triggered on the software

application level by implementing different IIR filtering.

Same sensor can be used by different software applications applying different IIR filtering to the raw data like

low pass, high pass or band pass filtering.

6

Digital interfaces

The DPS310 measurement data, calibration coefficients, Product ID and configuration registers can be accessed

The SPI interface can configured to operate in 3-wire or 4-wire mode. In I2C and SPI 3-wire, an interrupt output

can be implemented on the SDO pin. The SPI interface support mode '11' only ( CPOL=CPHA='1' ) in 4-wire and

3-wire configuration. The following commands are supported: single byte write, single byte read and multiple

byte read using auto increment from a specified start address. The interface selection is done based on CSB pin

DPS310 - Digital Pressure Sensor

Digital Barometric Pressure Sensor for Portable Devices

Digital interfaces

19

V1.0

2016-09-05