FXLS93421 datasheet(9/254 Pages) NXP

9 / 254 page

NXP Semiconductors

FXLS9xxxx

Dual channel inertial sensor

7 Block diagram

aaa-030564

BUS_I

VBUF

VSS

SS_B

SPI

ARM AND

PCM LOGIC

ARM AND

PCM LOGIC

I2C

BUSRTN

IDATA

RSENSE

BUS_O

DAISY CHAIN

SWITCH DRIVER

VBUF

VREF

BUFFER

VOLTAGE

REGULATOR

REFERENCE

VOLTAGE

LOW VOLTAGE

DETECTION

OSCILLATOR

OTP

ARRAY

VREG

VREGA

BUS_I

CONTROL

LOGIC

SCLK/SCL

MOSI

MISO/SDA

ARM/PCM0

ARM/PCM1

COMMAND

DECODER

SERIAL

ENCODER

OTP

PROGRAMMING

INTERFACE

INTERNAL

VOLTAGE

REGULATOR

BUSSW_L

SINC

FILTER

∑

CONVERTER

OVER-

DAMPED

G-CELL

OVER-

DAMPED

G-CELL

OFFSET

DAC

IIR

LPF

HPF

INTERPOLATION

OFFSET

MONITOR

OUTPUT

SCALING

TRIM

DIGITAL

CLIPPING

USER

SENSE

SCALING

CH0 DSP

SINC

FILTER

IIR

LPF

HPF

INTERPOLATION

OFFSET

MONITOR

OUTPUT

SCALING

TRIM

DIGITAL

CLIPPING

USER

SENSE

SCALING

CH1 DSP

SELF TEST

∑

CONVERTER

OFFSET

DAC

SELF TEST

Figure 7. Dual channel internal block diagram

FXLS9xxxx

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Product data sheet

Rev. 6 — 8 February 2021

9 / 254

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