2403 263 00077
SPEAKER-16-4.7-MFD
2403 263 00077
Change History
Status
Version Date
ECR
Comment / Changes
Initials of
owner
Draft
A1
18.02.08
Draft specification for first samples
MW
Draft
A2
02.03.09
Draft specification for first samples
HW
Draft
A3
15.05.09
Draft specification for samples
HW
Release
A
15.10.09
First released Version
HW/AH
Release
B
07.12.09
Dimension update
HW/AH
Release
Release
C
27.01.10
Spring Force added
HW
D
15.02.10
Main tolerance and Handling Force update
HW
2818
.
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2403 263 00077
Contents
1.
Mechanical Characteristics ..................................................................................................... 4
1.1. Main Dimensions ............................................................................................................. 4
1.2. Contact Layout ................................................................................................................ 5
1.3. Contact Force .................................................................................................................. 5
1.4. Print Code ........................................................................................................................ 6
1.5. Forces on Component ..................................................................................................... 7
1.6. Material List ..................................................................................................................... 8
2.
Electro-Acoustic Characteristics ............................................................................................. 9
2.1. Frequency response ........................................................................................................ 9
2.2. Electro-Acoustic Parameters ......................................................................................... 10
2.3. Power Handling ............................................................................................................. 10
2.4. Measurement Setup (acoustics) .................................................................................... 11
2.5. Measured Parameters ................................................................................................... 11
2.6. Vibra Parameters ........................................................................................................... 12
2.7. Measurement setup (Vibra Function) ............................................................................ 13
2.8. Measured Parameters (Vibra Function) ......................................................................... 13
2.9. Measurement adapter.................................................................................................... 14
3.
Environmental Conditions ..................................................................................................... 15
3.1. Storage .......................................................................................................................... 15
3.2. Transportation ............................................................................................................... 15
3.3. Functionality .................................................................................................................. 15
4.
Environmental Tests ............................................................................................................. 16
Qualification Tests .................................................................................................................... 16
Requalification Tests ................................................................................................................ 16
Sample Size, Sequence ........................................................................................................... 16
Period of Shelf-Life ................................................................................................................... 16
Testing Procedures .................................................................................................................. 16
5.
Related Documents .............................................................................................................. 20
page 3 of 22
2403 263 00077
1. Mechanical Characteristics
1.1. Main Dimensions
This product is non-automotive qualified
page 4 of 22
2403 263 00077
1.2. Contact Layout
1.3. Contact Force
page 5 of 22
2403 263 00077
1.4. Print Code
page 6 of 22
2403 263 00077
1.5. Forces on Component
STATE
MAX
PERMANENT
FORCE [N]
FROM FRONT TO BACK
MEMBRANE
10
0
MAX
HANDLING
FORCE
[N]
20
0
.
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2403 263 00077
1.6. Material List
1. Material of housing:
PC
2. Material of membrane:
Plastic Foil
3. Material of pot:
Soft Magnetic Iron
4. Material of topplate
Soft Magnetic Iron
5. Material of magnet:
Nd Fe B
6. Material of contact
Stainless Steel
7. Material of cover:
PC
8. Material of bottom:
Stainless Steel
9. Material of vibra spring:
CrNi-Steel
10. Dimensions [mm]:
ø16.4 x 4.7
11. Mass:
3.0 g
page 8 of 22
2403 263 00077
2. Electro-Acoustic Characteristics
2.1. Frequency response
Typical frequency response measured on baffle according to 2.4.
in measurement adapter according to 2.9
(distance d = 1cm,P= 125mW with 2cm back cavity)
f
[Hz]
300
400
700
750
900
1500
3000
4000
6000
10000
15000
lower limit
[dB SPL]
Tolerance window
upper limit
[dB SPL]
95
85
114
107
107
104
102
103
105
102
f
[Hz]
300
900
1500
10000
upper limit
[%THD]
15
15
4
4
114
110
108
111
114
112
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2403 263 00077
2.2. Electro-Acoustic Parameters
Loudspeaker mounted in adapter acc. to 2.9 measured on baffle according to 2.4.
1. Rated impedance
Z:
8Ω
2. Voice coil resistance
R:
7.2Ω±10%
3. Resonance frequency in 2ccm (measured @15mW) f0:
740Hz±10%
3.1. Resonance frequency with open back
540Hz typical
4. Maximum usable excursion
f0:
xmax p-p:
0.6mm p-p
5. Nominal characteristic sensitivity (calculated for 1W in 1m)
average from 2kHz to 5kHz
74±2dB
5.1. Measured characteristic sensitivity (at 125mW in 1cm)
average from 2kHz to 5kHz
105±2dB
6. THD
7. Rub & buzz
according chapter 2.1.
< 80dBSPL (300Hz -1500Hz) in 1cm at 500mW (2Veff)
All acoustic measurements at 23±2°C
2.3. Power Handling
Loudspeaker mounted in lifetime test device (1ccm back cavity, open front)
1.
MAX.SHORT TERM POWER (1sec. ON / 60sec. OFF)
1000mW (RMS)
(pink noise, 2nd order high pass filtered, -3dB at 800Hz, crest factor 2)
2.
MAX. CONTINUOUS POWER (500h)
500mW (RMS)
(pink noise, 2nd order high pass filtered, -3dB at 700Hz, crest factor 2)
.
page 10 of 22
2403 263 00077
2.4. Measurement Setup (acoustics)
IEC BAFFLE
Rq,including wiring < 0,3 Ω
freefield
microphone 1/4“
power amplifier
≈
Analyzer
• Frequency
response
• THD
• rub & buzz
1 cm³
d
measurement adapter
2.5. Measured Parameters
2.5.1.
Sensitivity
SPL is expressed in dB rel 20µPa, computed according to IEC 268-5
Measurement set up according chapter 2.4 and 2.9.
This test is performed for 100% of products in the production line
2.5.2.
Frequency response
Frequency response is measured according test set up in chapter 2.4 and 2.9 data sheet and
checked against the tolerance window defined in chapter 2.1. This Test is performed for 100% of
products in the production line.
2.5.3.
Total harmonic distortion (THD)
Is measured according IEC 268-5 (2nd to 5th harmonics) and test set up in chapter 2.4 and 2.9
and checked against the tolerance window defined in chapter 2.1. This test is performed for
100% of products in the production line.
2.5.4.
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 nonharmonic content ratio, in a certain frequency-range. Signal and evaluation criteria are according
to chapter 2.2. This test is performed for 100% of products in the production line.
page 11 of 22
2403 263 00077
2.6. Vibra Parameters
Loudspeaker mounted in adapter acc. to 2.7
1. Resonance frequency (measured @0.35V/15mW)
f0:
157Hz±7Hz
2. Max. Acceleration (measured @0.35V/15mW between 152-162Hz)
a max:
>6,5m/s2
acceleration vs frequency
8
7
6
a [m/s²]
5
4
3
2
1
0
142
147
152
157
162
167
172
f [Hz]
page 12 of 22
2403 263 00077
2.7. Measurement setup (Vibra Function)
fr
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