AN4506 datasheet(20/47 Pages) STMICROELECTRONICS

Part #	AN4506

Description	This document is intended to provide information

PDF	47 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

20 / 47 page

Digital filters

AN4506

20/47

DocID026442 Rev 2

4.3.1

Normal mode

In this configuration the high-pass filter can be reset by reading the REFERENCE register,

instantly deleting the DC component of the angular rate.

Figure 8. High-pass filter reset by reading the REFERENCE register

4.3.2

REFERENCE mode

In this configuration the output data is calculated as the difference between the input

angular rate and the content of the REFERENCE register. This register is in 2’s complement

representation and the value of 1 LSB of these 8-bit registers depends on the selected full

scale (Table 15).

Normal mode (reset by reading the REFERENCE register)

Autoreset on interrupt event

Table 14. High-pass filter mode configuration

HPM1

HPM0

High-pass filter mode

Table 15. REFERENCE mode LSB value

Full scale

REFERENCE mode LSB value (mdps)

245

500

2000

~16

AN4506 Datasheet(PDF) 20 Page - STMicroelectronics