SPM1423HM4H-B

TM

Digital "Mini" High SNR SiSonic Microphone
Specification

Knowles Acoustics
1151 Maplewood Drive
Itasca, IL 60143

Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
1. DESCRIPTION AND APPLICATION
TM

1.1 DESCRIPTION

Digital "Mini" High SNR SiSonic Microphone
Specification

1.2 APPLICATION

Consumer electronics

2. PART MARKING
Identification Number Convention
S1234567

S: Identification Marking"S" - Knowles SiSonic Production"E" - Knowles Engineering Samples
Digits 1-7: Job Identification Number

3. MATERIALS STATEMENT
3.1 Meets the requirements of the European RoHS directive,
2002/95/EC as amended.
3.2 Meets the requirements of the industry-standard IEC 61249-221:2003 for halogenated substances and Knowles Green
Materials Standards Policy section on Halogen-Free.
3.3 Ozone depleting substances are not used in the productor the processes used to make the product, including
compounds listed in annex A, B, and C of the "Montreal Protocol
on Substances that deplete the Ozone Layer."

4. TEMPERATURE RANGE
4.1 Operating Temperature Range: -40 C to +100 C4.2 Storage Temperature Range: -40 C to +100 C

Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B

Stresses at these Absolute Maximum Ratings may cause permanent damage to the device. These arestress ratings only. The device may not function when operated at these or any other conditions
beyond those indicated under “Acoustic & Electrical Specifications”. Exposure beyond those indicatedunder “Acoustic & Electrical Specifications” for extended periods may affect device reliability.

6. ACOUSTIC & ELECTRICAL SPECIFICATIONS

Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
7. MICROPHONE STATE DIAGRAM

Sensitivity (dB)

8. FREQUENCY RESPONSE CURVE

Frequency (Hz)Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
9. MECHANICAL SPECIFICATIONS
"W"

2.794
"H"

1.880

1.676

0.43

1.331
16

"L"

"AP"

0.711
1.651
(2X)

1.118

4.284

R0.2543.324
R0.2790.914(5X)

152432.337(2X)

3.302(2X)

0.711(3X)

Note:Dimensions are in milimeters unless otherwise specified.
Tolerance

0.15mm unless otherwise specified.

Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
10. RECOMMENDED CUSTOMER LAND PATTERN

16251.651

3.302

34

2.337

0.914(5X)

NOTE: Contact Knowles for Solder Stencil Information
Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
11. RECOMMENDED INTERFACE CIRCUIT & TIMING DIAGRAM

TIMING DIAGRAM

Knowles Acoustics, a division of Knowles Electronics, LLC.

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Sheet 7 of 11

SPM1423HM4H-B
12. PACKAGING DETAIL
12.0±0.3

2.00±0.05

1.75±0.10

8.00

4.00

0.30±0.05
1.57±0.10

A+0.1
1.5
0.0
5.50±0.05
5.10±0.10

R0.3 TYP.

+0.1
1.50.0A

4.20±0.10

PIN #1COMPONENTORIENTATIONLASER MARKSPM1423HM4H-B

Note:
Dimensions are in milimeters
unless otherwise specified.

Knowles Acoustics, a division of Knowles Electronics, LLC.

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Sheet 8 of 11

SPM1423HM4H-B
13. SOLDER REFLOW PROFILE

14. ADDITIONAL NOTES
(A)

(B)
(C)
(D)
(E)
(F)
(G)
(H)

Shelf life: Twelve (12) months when devices are to be stored in factory supplied,
unopened ESD moisture sensitive bag under maximum environmental conditions of30ºC, 70% R.H.
MSL (moisture sensitivity level) Class 2a.
Do not pull a vacuum over port hole of the microphone. Pulling a vacum over theport hole can damage the device.
Do not board wash after the reflow process. Board washing and cleaning agentscan damage the device. Do not expose to ultrasonic processing or cleaning.
Do not brush board after the reflow process. Brushing the board with/without
solvents can damage the device.
Do not insert any object in port hole of device at any time as this can damage thedevice.
Number of reflow - Recommend no more than 3 cycles.
Do not apply air pressure into the port hole. Air pressure over psi can damage thedevice.

Knowles Acoustics, a division of Knowles Electronics, LLC.

Revision: ARelease Level: Active
Sheet 9 of 11

SPM1423HM4H-B
15. RELIABILITY SPECIFICATIONS
Note: After test conditions are performed, the sensitivity of the microphone shallnot deviate more than 3dB from its initial value.

Knowles Acoustics, a division of Knowles Electronics, LLC.

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SPM1423HM4H-B
16. SPECIFICATION REVISIONS

RevisionA

Detailed Specification Changes
INITIAL RELEASE (C10113410)

Date02-16-12

The information contained in this literature is based on our experience to date and is believed to be reliable and it issubject to change without notice. It is intended as a guide for use by persons having technical skill at their own
discretion and risk. We do not guarantee favorable results or assume any liability in connection with its use.
Dimensions contained herein are for reference purposes only. For specific dimensional requirements consult factory.
This publication is not to be taken as a license to operate under, or recommendation to infringe any existing
patents. This supersedes and voids all previous literature.

Knowles Acoustics, a division of Knowles Electronics, LLC.

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