NXP Semiconductors
FXPS7115D4
Digital absolute pressure sensor, 40 kPa to 115 kPa
Table 6.ꢀIIR low pass filter coefficients
Filter
number
Typical –3 dB
frequency
Filter
order
Filter coefficients (24 bit)
Group
delay (μs)
Typical
attenuation @
1000 Hz (dB)
1
800 Hz
4
a0
0.088642612609670
—
—
418
4.95
n11
n12
n13
n21
n22
n23
a0
0.029638050039039
0.087543281056143
0.029695285913601
0.250241278804809
0.499999767379068
0.249758953816089
0.129604264748411
0.043719804402508
0.087543281056143
0.043823599710731
0.250296586927511
0.499999648540934
0.249703764531484
d11
d12
d13
d21
d22
d23
—
1
–1.422792640957290
0.511435253566960
1
–1.503329908017845
0.621996524706640
—
2
1000 Hz
4
333
2.99
n11
n12
n13
n21
n22
n23
d11
d12
d13
d21
d22
d23
1
–1.300502656562698
0.430106921311110
1
–1.379959571988366
0.555046257157745
aaa-029738
0
magnitude
(dB)
-20
-40
-60
-80
minimum
typical
maximum
-100
2
3
4
1
10
10
10
10
frequency (Hz)
Figure 8.ꢀ 800 Hz, 4-pole, low-pass filter response
FXPS7115D4
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© NXP B.V. 2019. All rights reserved.
Product data sheet
Rev. 3 — 5 December 2019
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