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FXPS7115D4S 数据表(PDF) 9 Page - NXP Semiconductors

部件名 FXPS7115D4S
功能描述  Digital absolute pressure sensor, 40 kPa to 115 kPa
PDF  74 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

FXPS7115D4S 数据表(HTML) 9 Page - NXP Semiconductors

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NXP Semiconductors
FXPS7115D4S
Digital absolute pressure sensor, 40 kPa to 115 kPa
7.3.3.3 Low-pass filter
Data from the sinc filter is processed by an infinite impulse response (IIR) low-pass filter
with the transfer function and coefficients shown in Equation 3.
(3)
Filter
number
Typical –3 dB
frequency
Filter
order
Filter coefficients (24 bit)
Group
delay (μs)
Typical
attenuation @
1000 Hz (dB)
a0
0.088642612609670
—
—
n11
0.029638050039039
d11
1
n12
0.087543281056143
d12
–1.422792640957290
n13
0.029695285913601
d13
0.511435253566960
n21
0.250241278804809
d21
1
n22
0.499999767379068
d22
–1.503329908017845
1
800 Hz
4
n23
0.249758953816089
d23
0.621996524706640
418
4.95
a0
0.129604264748411
—
—
n11
0.043719804402508
d11
1
n12
0.087543281056143
d12
–1.300502656562698
n13
0.043823599710731
d13
0.430106921311110
n21
0.250296586927511
d21
1
n22
0.499999648540934
d22
–1.379959571988366
2
1000 Hz
4
n23
0.249703764531484
d23
0.555046257157745
333
2.99
Table 6. IIR low pass filter coefficients
aaa-029738
frequency (Hz)
1
104
103
10
102
-60
-40
-80
-20
0
magnitude
(dB)
-100
minimum
typical
maximum
Figure 8.  800 Hz, 4-pole, low-pass filter response
FXPS7115D4S
All information provided in this document is subject to legal disclaimers.
© 2022 NXP B.V. All rights reserved.
Objective data sheet
Rev. 1 — 9 August 2022
9 / 74



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