ADXRS450 Datasheet, PDF (11/28 Pages) Analog Devices – HIgh Performance, Digital Output Gyroscope

Preliminary Technical Data
The transfer function for the Rate Data LPF is given as
⎡1 − Z ^−64 ⎤²
⎢
⎣
1 − Z ^−1
⎥
⎦
where:
T= ¹ =
1
f₀ 16 kHz (typ)
ADXRS450
The transfer function for the Continuous Self-Test LPF is given as
1
64 − 63Z ^−1
where:
T = ¹⁶ = 1ms (typ)
f₀
PRIMARY SIGNAL CHAIN
4ms
GROUP DELAY
<5µs
DELAY
<5µs
DELAY
<5µs
DELAY
ARITHMETIC
LOGIC UNIT
BAND-PASS
FILTER
ADC 12
DEMOD
RATE DATA
LPF
Z-AXIS ANGULAR
RATE SENSOR
CONTINUOUS
SELF-TEST
LPF
<64ms
GROUP DELAY
Figure 23. Primary Signal Chain and Associated Delays
<2.2ms
DELAY
SPI
TRANSACTION
Rev. PrA | Page 11 of 28