2403-260-00001 Datasheet by Knowles

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©2011 Knowles Electronics
2403-260-00001
11x15x3.5 MM SPEAKER
The 11 x 15 x 3.5 mm rectangular speaker is a high
end miniature speaker specifically designed for
portable devices, music phones and smartphones
where high quality sound is required.
It delivers pure , uncolored sound reproduction
in applications with small space.
Suitable for mono and stereo applications.
Features:
Flat, wide frequency response
Low resonance frequency (800Hz) in
1cm³ closed back cavity
Compound membrane with
additional stiffening plate for inner
damping and low THD
Extremely robust spring connector
100% in-line measurement of all
specified acoustical and electrical
parameters
PRODUCT DATA SHEET ’ ' ' 2403-260-00001 “ V www.know|es.cum Page 2 af 19
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©2011 Knowles Electronics
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Contents
1. Theory of operation............................................................................................................................. 3
2. Mechanical Layout and Dimensions .................................................................................................... 4
2.1. Main Dimensions ......................................................................................................................... 4
2.2. Spring Force ................................................................................................................................. 4
2.3. Pad layout .................................................................................................................................... 5
2.4. Force layout ................................................................................................................................. 5
2.5. Material list .................................................................................................................................. 6
2.6. Part marking ................................................................................................................................ 6
3. Electrical and Acoustical Specifications ............................................................................................... 7
3.1. Frequency response .................................................................................................................... 7
3.2. Excursion ..................................................................................................................................... 8
3.3. Electro-acoustic characteristics acc. IEC 268-5 ........................................................................... 9
3.4. Measurement setup .................................................................................................................. 10
3.5. Measurement adapter 1 cm³ .................................................................................................... 11
3.6. Measured Parameters ............................................................................................................... 12
4. Environmental Conditions ................................................................................................................. 13
4.1. Storage....................................................................................................................................... 13
4.2. Transportation ........................................................................................................................... 13
4.3. Functionality .............................................................................................................................. 13
5. Environmental tests .......................................................................................................................... 14
5.1. Qualification tests...................................................................................................................... 14
5.2. Reliability tests .......................................................................................................................... 14
5.3. Sample Size, Sequence .............................................................................................................. 14
5.4. Period of Shelf-Life .................................................................................................................... 14
5.5. Testing Procedures .................................................................................................................... 14
6. Related Documents ........................................................................................................................... 18
7. Change History .................................................................................................................................. 19
8. Disclaimer .......................................................................................................................................... 19
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©2011 Knowles Electronics
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2403-260-00001
1. Theory of operation
The 11x15x3.5 rectangular speaker is an electro dynamic transducer, designed to translate electrical
analog signals into sound. The input signal is fed into a coil in a magnetic field, which is attached to a
membrane. Through the principle of the electromagnetic force, the membrane is moved according to
the contents of the input signal.
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©2011 Knowles Electronics
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2403-260-00001
2. Mechanical Layout and Dimensions
2.1. Main Dimensions
2.2. Spring Force
PRODUCT DATA SHEET * 21403-260-00001 [and Mm mam mmpom ayout Nr from In max form \ H H IO“ 2 H H 0" LL” um I F3 5" quvmvm pmm [one WM “ . www.knuwles.cum Fag: 5 M19
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©2011 Knowles Electronics
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2403-260-00001
2.3. Pad layout
2.4. Force layout
PRODUCT DATA SHEET 27403-260-00001 Knowles intemaloode time version number la_st 4 digits of Eoduct code Positive voltage on + moves membrane to _ frontof speaker “ :4 www.know|es.cum Page 6 M19
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©2011 Knowles Electronics
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2403-260-00001
2.5. Material list
1. MATERIAL of BASKET: Polycarbonate
2. MATERIAL of MEMBRANE: Polyarylate-Compound
3. MATERIAL of POT: soft magnetic Iron
4. MATERIAL of MAGNET: Nd Fe B /N42
5. MATERIAL of CONTACT CrNi-Steel, gold plated
6. MATERIAL of COVER: Polycarbonate
7. DIMENSION: 15x11x3.5mm
8. MASS: 1.6g
2.6. Part marking
is. SPL [350mW10cm) [dBSPL] 110 105 100 95 90 85 80 75 70 65 60 PRODUCT DATA SHEET * 21403-260-00001 —SPL +SPL Limits —THD +THD limits 100 THD [%1 1000 10000 Frequency [Hz] . www.kuuwles.cum Page 7 M19
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©2011 Knowles Electronics
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3. Electrical and Acoustical Specifications
3.1. Frequency response
TYPICAL FREQUENCY RESPONSE measured in Baffle according to 3.4
(distance d = 10cm, with back cavity 1cm³ at 350mW)
Tolerance window
f
[Hz]
lower limit
[ SPL floating]
upper limit
[ SPL floating]
f
[Hz]
upper limit
[%THD]
300 67 81 300 25
770 91 98 500 18
890 91 98 750 18
2000 87 92,5 1500 5
5000 87 92,5 2000 3
6300 87 95 15000 3
9000 91 100
11000 93 106
13000 75 106
20000 75 106
PRODUCT DATA SHEET , * 21403-260-00001 —1ccm 350mW —open 100mW 0.7 0.6 / ,_ 05 // \\ I E / E. g 0.4 / .5 J/ 2 O 3 3 a \ "J 02 0.1 \§ § 0 100 1000 3000 Frequency [Hz] “ . www.knuwles.cum Page 3 M19
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2403-260-00001
3.2. Excursion
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©2011 Knowles Electronics
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2403-260-00001
3.3. Electro-acoustic characteristics acc. IEC 268-5
3.3.1. LOUDSPEAKER IN 1cm³ MEASUREMENT ADAPTER ACC. TO 3.4
1. RATED IMPEDANCE Z: 8
2. VOICE COIL RESISTANCE R: 7.4 ± 10%
3. RESONANCE FREQUENCY f0: 800Hz ± 7.5%
4. MAXIMUM LINEAR EXCURSION Xmax: +/- 0.30mm
5. CHARACT. SENSITIVITY (1W in 1m) 73 ± 2dB
average from 2kHz to 5kHz
6. THD according to Sheet 190 - 3
7. RUB & BUZZ no audible rub & buzz
at 350mW
3.3.2. LOUDSPEAKER IN BAFFLE WITHOUT BACK CAVITY
1. TYPICAL RESONANCE FREQUENCY f0: 450Hz
3.3.3. Loudspeaker mounted in Lifetime test device (closed Box 2ccm, open front)
Signal IEC268-1 with high-pass 12dB/Oct. at 800Hz, crest factor 2, used for all operating lifetime tests
1. MAX.SHORT TERM POWER 1sec ON, 1min. OFF, 60 cycles 1000mW
Ambient temperature 70°C
2. MAX LONG TERM POWER 1min ON, 2min. OFF, 10 cycles 600mW
Ambient temperature 70°C
3. MAX. NOISE POWER (PHC continuous) 500h 500mW
Ambient temperature 70°C
PRODUCT DATA SHEET * 21403-260-00001 IEC BAFFLE Rq, includrgwin'ng < 0,39="" power="" amplifier="" j="" freefleld="" microphone="" 1/="" “="" analyzer="" -frequency="" response="" -th="" d="" orub="" &="" buzz="" ——="" measurement="" adapter="" “="" .="" www.knuwles.cum="" page="" 10="" m19="">
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©2011 Knowles Electronics
Release Revision: M
2403-260-00001
3.4. Measurement setup
* . 2403-260-00001
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©2011 Knowles Electronics
Release Revision: M
2403-260-00001
3.5. Measurement adapter 1 cm³
PRODUCT DATA SHEET ’ ' ' 2403-260-00001 “ V www.know|es.cum Page 12 ans
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©2011 Knowles Electronics
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2403-260-00001
3.6. Measured Parameters
3.6.1. Sensitivity
SPL is expressed in dB rel 20µPa, computed according to IEC 268-5.
Measurement set up and parameters according chapter 3.4.
This test is performed for 100% of products in the production line.
3.6.2. Frequency response
Frequency response is measured according test set up in chapter 3.4 data sheet and checked against
the tolerance window defined in chapter 3.1. This Test is performed for 100% of products in the
production line.
3.6.3. Total harmonic distortion (THD)
Is measured according IEC 268-5 (2nd to 5th harmonics) and test set up in chapter 3.4. This test is
performed for 100% of products in the production line.
3.6.4. Rub& Buzz
Rub & Buzz will be measured in the Inline-measuring device with a sinusoidal sweep. Rub & Buzz is
defined as the maximum level of no harmonic energy, expressed as signal to non-harmonic content
ratio, in a certain frequency-range. Signal and evaluation criteria are according to chapter 3.3. This test
is performed for 100% of products in the production line.
PRODUCT DATA SHEET + 2403-260-00001 Specificatio Test spec. locations. Specification of environmental test: Tra Test Spec. T 2.3: Public Transportation Specification of environmental test: Gr Test spec, T 5.1: Protected installation ETS 300 019-2-7 Specification of environmental test: Portable and non-stationary use “ www.knowles.cum Page 13 Ml?
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©2011 Knowles Electronics
Release Revision: M
2403-260-00001
4. Environmental Conditions
4.1. Storage
The transducer fulfills the specified data after treatment according to the conditions of
ETS 300 019-2-1 Specification of environmental test: Storage
Test spec. T 1.2: Weather protected, not temperature controlled storage
locations.
4.2. Transportation
The transducer fulfills the specified data after treatment according to the conditions of
ETS 300 019-2-2 Specification of environmental test: Transportation
Test Spec. T 2.3: Public Transportation
4.3. Functionality
The transducer fulfills the specified data after treatment according to the conditions of
ETS 300 019-2-5 Specification of environmental test: Ground vehicle installations
Test spec. T 5.1: Protected installation
Specification of environmental test: Portable and non-stationary use
Test spec. T 7.3E: Partly weather protected and non-weather protected
locations.
PRODUCT DATA SHEET ‘ , * 21403-260-00001 “ www.knuwles.cum Page 14 Ml?
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©2011 Knowles Electronics
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2403-260-00001
5. Environmental tests
5.1. Qualification tests
According to our milestone plan (Product Creation Process), a complete qualification test will be done
at design validation of products manufactured under serial conditions.
1x per year and product family a requalification takes place. The qualification process covers all tests
described under 5.5 and a complete inspection.
5.2. Reliability tests
1x per month and product family samples are taken and submitted to tests described under 5.5.2
5.3. Sample Size, Sequence
Unless otherwise stated 20 arbitrary new samples will be used to perform each test for both,
qualification and requalification test as described under 5.1 and 5.2.
5.4. Period of Shelf-Life
The period of shelf-life is 2 years.
5.5. Testing Procedures
5.5.1. Storage Tests
5.5.1.1. Cold Storage Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Low Temperature
Storage
(Ref. EN 60068-2-1)
-40°C
rel. humidity not
controlled
168h Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
5.5.1.2. Heat Storage Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Dry Heat Storage
(Ref. EN 60068-2-2)
+85°C
rel. humidity not
controlled
168h Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
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©2011 Knowles Electronics
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2403-260-00001
5.5.1.3. Temperature Cycle Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Change of Temperature
(Ref. EN 60068-2-14)
-40°C/+85°C
Transition time <3 min.
See Figure 5-1 below
5 cycles
>2h for each
temperature
Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
-40°C
+85°C
2h 2h
3m 3m 2h 2h
3m 3m 2h 2h
3m 3m 2h 2h
3m 3m 3m 3m
2h 2h
Figure 5-1: Temperature Cycle Test
5.5.1.4. Temperature / Humidity Cycle Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Damp heat, cyclic
(Ref. IEC 60068-2-30)
+25°C/+55°C
90% to 95% RH.
Temp. change time <3h
See Figure 5-2 below
Caution: no condensed
water on products!
6 cycles / 144h
12h at each
temperature
(inclusive temp
ramp up/down)
Measurements after 2 hours
recovery time.
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by 50 %.
+25°C
+55°C
9h 9h
3h 3h 9h 9h
3h 3h 9h 9h
3h 3h 9h 9h
3h 3h 9h 9h
3h 3h 9h 9h
3h 3h
Figure 5-2: Temperature / Relative Humidity Cycle Test
PRODUCT DATA SHEET 3 r 21403-260-00001 “ r, www.knuwles.cum P25: 16 M19
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©2011 Knowles Electronics
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2403-260-00001
5.5.2. Operating Tests
5.5.2.1. Cold Operation Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Cold Operation Test
(Ref. EN 60068-2-1)
-20°C
rel. humidity not
controlled
signal acc. Chapter
3.3.3.
72h Measurements after 2 hours
recovery time.
All samples fully operable.
THD may be increased after
test. All other acoustical
parameters according
specification with tolerances
increased by 50 %.
5.5.2.2. Dry Heat Operation Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Dry Heat Operation
(Ref. EN 60068-2-2)
+70°C
rel. humidity not
controlled
signal acc. Chapter
3.3.3.
500h Measurements after 2 hours
recovery time.
All samples fully operable.
The allowable change in
sensitivity shall not be greater
than 3 dB. All other acoustical
parameters according
specification with tolerances
increased by 50 %.
5.5.3. Salt Mist Test
Parameter Test Method and
Conditions
Duration Evaluation Standard
Salt Mist
(Ref. IEC60068-2-52,
Kb / Severity 2
The part must be
subjected to 2 hours
spray of 5% NaCl salt
mist, at 35°C then be
left at 40°C and 95%
RH for 22h.
3 cycles The samples shall be washed
after the test with distilled water
and dried at T< 50°C.
Component may have reduced
performance, but must still
function properly. The allowable
sensitivity difference shall not
be greater than ±3dB from
initial sensitivity.
PRODUCT DATA SHEET ‘ ‘ 2‘403-260-00001 is. www.knuwles.cum Page 17 M19
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©2011 Knowles Electronics
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2403-260-00001
5.5.4. Guided Free Fall Test - protected product
Parameter Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Mechanical shock
(Ref. IEC60068-2-32
Ed), Procedure 1
Speaker in drop test
box or representative
mechanics from a
height of 1.5m onto
concrete floor.
30 units
Two drops on
each side (2x6)
One drop on
each edge
(1x12) Two
drops on each
corner (2x8)
(40 drops in
total)
Component may have reduced
performance, but must still
function properly. The allowable
sensitivity difference shall not
be greater than ±3dB from
initial sensitivity.
5.5.5. Random Free Fall Test (Tumble Test) protected product
Parameter Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Impact durability (in a
Tumble Tester)
(Ref. IEC60068-2-32
Ed)
(SPR a7.1.1)
Speaker in drop test box
or representative
mechanics. Random
drops on steel base.
30 units
180 drops, 1m
DUT power off
Component may have reduced
performance, but must still
function properly. The
allowable sensitivity difference
shall not be greater than ±3 dB
from initial sensitivity.
5.5.6. Resistance to Electrostatic Discharge
Parameter Test Method and
Conditions
Conditions /
Sample size
Evaluation Standard
Resistance to ESD
IEC61000-4-2 Level 4
(SPR c 2.5.1)
One pole is grounded and
the ESD pulse is applied
to the other pole. The
speaker must be stressed
first with one polarisation
and then with the other
polarisation. DUT must be
discharged between each
ESD exposure.
Level 4: contact +/- 8kV,
air +/- 15kV
10 exposures on
each polarity / 5
units
DUT Power off
All samples fully operable.
All acoustical parameters
according specification with
tolerances increased by
50%.
PRODUCT DATA SHEET ’ ' ' 2403-260-00001 “ V www.know|es.cum Page 13 ans
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©2011 Knowles Electronics
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2403-260-00001
6. Related Documents
IEC 268-5 Sound System equipment
Part 5: Loudspeaker
IEC 68-2 Environmental testing
EN 60068-2 Environmental testing
ISO 2859 - 1 Sampling procedures for inspection by attributes
Part 1: Sampling plans indexed by acceptable quality level (AQL) for lot-by-lot
inspection
ISO 3951 Sampling procedures and charts for inspection by variables for percent
defectives.
ETS 300 019-2-1 Specification of environmental test: Storage
Test spec. T 1.2: Weather protected, not temperature controlled storage
locations
ETS 300 019-2-2 Specification of environmental test: Transportation
Test spec. T 2.3: Public Transportation
ETS 300 019-2-5 Specification of environmental test: Ground vehicle installations
Test spec. T 5.1: Protected installation
ETS 300 019-2-7 Specification of environmental test: Portable and non-stationary use
Test spec. T 7.3E: Partly weather protected and non-weather protected
locations
PRODUCT DATA SHEET * 2403-260-00001 Status Version Date ECR Comment/ Changes Initials of owner Obsolete A 22.05.05 First release Obsolete E 17.05.05 898 Second revision Obsolete C 16.06.05 1011 Third revision Obsolete 0 11.07.05 1089 Change cover outer shape MS Obsolete E 05.12.05 1453 Stamp print/resonance frequency diagram AH Obsolete H 01.02.10 2705 Dimensioning Contact position/spring Force curve FL Obsolete I 29.03.10 2802 Update legal disclaimer/update logo and template cw Obsolete 1 08.06.10 2865 Update material list CF Obsolete K 23.03.11 3062 Contact height tolerance/Migration to Knowles SA/CP template Obsolete L 12.09.11 3298 Repnrase theory of operation/remove word ”RA” HB/CP Str str be in oduct is not qualified for automotive applications Page 19 M19
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©2011 Knowles Electronics
Release Revision: M
2403-260-00001
7. Change History
Status Version Date ECR Comment / Changes Initials of
owner
Obsolete A 22.05.05 First release
Obsolete
B
17.05.05
898
Second revision
Obsolete
C 16.06.05 1011 Third revision
Obsolete
D 11.07.05 1089 Change cover outer shape MS
Obsolete
E 06.12.05 1453 Stamp print/resonance frequency diagram AH
Obsolete
F 21.03.06 1612 Stamp/floating tolerance/test signal AH
Obsolete
G 08.11.06 1738 Rebranding Philips to NXP CP
Obsolete
H 01.02.10 2705 Dimensioning contact position/spring force curve FL
Obsolete
I
29.03.10
2802
Update legal disclaimer/update logo and template
CP
Obsolete
J 08.06.10 2865 Update material list CP
Obsolete K 23.03.11 3062 Contact height tolerance/Migration to Knowles
template
SA/CP
Obsolete L 12.09.11 3298 Rephrase theory of operation/remove wordRA HB/CP
Release M 09.07.12 3767 Publish document to newest template version CP/RB/HB
8. Disclaimer
Stresses above the Absolute Maximum Ratings may cause permanent damage to the device. These are
stress ratings only. The device may not function when operated at these or any other conditions
beyond those indicated under “Electrical and Acoustical Specifications”. Exposure beyond those
indicated under “Electrical and Acoustical Specifications” for extended periods may affect device
reliability.
The information contained in this literature is based on our experience to date and is believed to be reliable and it is subject 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 exiting patents. This supersedes and voids all previous literature.
This product is not qualified for use in
automotive applications
Frequency range for Telekom use

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