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IMX95CEC Datasheet(PDF) 46 Page - NXP Semiconductors

Part # IMX95CEC
Description  i.MX 95 Applications Processors Data Sheet for Commercial Products
PDF  113 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

IMX95CEC Datasheet(HTML) 46 Page - NXP Semiconductors

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The PDM microphones must meet the setup and hold timing requirements shown in the following table. The "k" factor value in
Table 48 depends on the selected quality mode as shown in Table 49.
Table 48. PDM timing parameters
Parameter
Value
trs, tfs
≤ floor (k x CLKDIV) -1 / PDM_CLK_ROOT rate
1
trh, tfh
≥ 0
1. Depending on K value, user must make sure floor (K x CLKDIV) > 1 to avoid timing problems.
Table 49. K factor value
Quality factor
K factor
High Quality
1/2
Medium Quality, Very Low Quality 0
1
Low Quality, Very Low Quality 1
2
Very Low Quality 2
4
Figure 17 illustrates the timing requirements for the PDM.
PDM_CLK
trs
tfs
PDM_DATAn
Left
Data
High
Impedance
Right
Data
High
Impedance
Left
Data
High
Impedance
Right
Data
Data
Impedance
Data
Impedance
Data
Impedance
Data
trh
tfh
Left
Data
High
Impedance
Right
Data
Right
Data
High
Impedance
High
Impedance
Left
Data
Figure 17. PDM input/output timing requirements
NXP Semiconductors
IMX95CEC
i.MX 95 Applications Processors Data Sheet for Commercial Products
IMX95CEC
All information provided in this document is subject to legal disclaimers.
© 2024 NXP B.V. All rights reserved.
Preliminary Data Sheet
Rev. 2 — 11 November 2024
Preliminary - Subject to Change Without Notice
46 / 113



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