SPM0208HE5
Enhanced RF Protected Amplified
“Mini” SiSonic™ Microphone Specification
Knowles Acoustics
1151 Maplewood Drive
Itasca, IL 60143
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
1 of 10
SPM0208HE5
1. DESCRIPTION AND APPLICATION
1.1 Description
“Mini” Surface Mount Silicon Microphone
with RF Protection
1.2 Application
Hand held telecommunication devices
2. PART MARKING
Identification Number Convention
Identification
Number
S
1
2
4
5
6
3
S: Manufacturing Location
“S” – Knowles Electronics Suzhou
Suzhou, China
“No Alpha Character” – Knowles Electronics Itasca
Itasca, IL USA
“E” – Engineering Samples
Pin 1
Digits 1 – 6: Job Identification Number
3. TEMPERATURE RANGE
3.1 Operating Temperature Range: -40°C to +100°C
3.2 Storage Temperature Range:
-40°C to +100°C
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
2 of 10
SPM0208HE5
4. ACOUSTIC & ELECTRICAL SPECIFICATIONS
Limits
Symbol
Directivity
Condition
Unit
Min.
Nom.
Max.
Omni-directional
Sensitivity
S
@ 1kHz (0dB=1V/Pa)
-26
-22
-18
dB
Output impedance
ZOUT
@ 1kHz (0dB=1V/Pa)
n/a
n/a
300
Ω
Current Consumption
IDSS
across 1.5 to 3.6 volts
0.100
n/a
0.350
mA
Signal to Noise Ratio
S/N
@ 1kHz (0dB=1V/Pa)
55
59
n/a
dB
Supply Voltage
Vs
1.5
n/a
3.6
V
Typical Input Referred
Noise
ENL
n/a
35
n/a
dBA SPL
Sensitivity Loss across
Voltage
Maximum Input Sound
Level
A-weighted
Change in sensitivity over 3.6v
to 1.5v
No Change Across Voltage
Range
At 100dB SPL, THD < 1%
At 115dB SPL, THD = < 10%
dB
5. FREQUENCY RESPONSE CURVE
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
dB
Revision: B
3 of 10
SPM0208HE5
6. MECHANICAL SPECIFICATIONS
4
1
"! #%$&
3
2
Pin Output
Pin #
Function
1
Output
2
Gain Control
3
Ground
4
Power
Item
Dim.
Tol. (+/-)
Units
Height
1.25
0.10
mm
Length
4.72
0.10
mm
Width
3.76
0.10
mm
Port Hole
0.84
0.15
mm
Short Edge to
C.L. Port
1.32
0.25
mm
Long Edge to
C.L. Port
1.88
0.25
mm
Weight
0.07
grams
Coplanarity
<0.1
mm
Acoustic Seal
I.D. (typical)
1.55
mm
Note: (Tolerance +/-0.15mm unless otherwise specified)
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
4 of 10
SPM0208HE5
7. RECOMMENDED CUSTOMER LAND PATTERN
8. RECOMMENDED SOLDER STENCIL PATTERN
N/A
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
5 of 10
SPM0208HE5
9. RECOMMENDED INTERFACE CIRCUIT
V+
Term 4 = Vdd
Vout
Term 1 = Output
R1 = 22kΩ
R2 = 2.4kΩ
Term 3 = Ground
Term 2 = Gain Control
R3 (set by customer)
C1 (set by customer)
D e sir e d Ga in
Pin 2 Te r m ina t ion M e t hod
Unit y Gain ( 0dB)
Tie Term inal 2 direct ly t o Out put ( Term inal 1) .
20dB Gain
Tie Term inal 2 t hrough C1 ( 0.47uF) t o Gr ound.
Adj ust able Gain
Add R3 and C1. Use for m ulas pr ovided t o calculat e
set t ings, or cont act Knowles for support .
Se t t ing Ga in For m ula s:
Gain of non- inver t ing Op- Am p is det erm ined as:
G= 1+ { R1 / ( R2 + R3) }
Gain( dB) = 20 * log( G)
High- pass- filt er Corner Frequency:
C.F. = 1 / { 2* * ( R2 + R3) * C1}
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
6 of 10
SPM0208HE5
10. PACKAGING DETAIL
Model Number
Suffix
Reel
Diameter
Quantity
per Reel
SPM0208HE5
-2
7”
1,200
SPM0208HE5
-6
13”
4,800
Pin 1 Location
Leader
Length
800mm or minimum of 100
empty pockets
Label
Label applied to external
package and direct to reel.
Per JEDEC.
Empty
Units
No consecutive empty
pockets; No more than 3
empty pockets per reel. (Does
not include empty pockets for
leader/follower)
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
7 of 10
SPM0208HE5
11. SOLDER REFLOW PROFILE
260°C
230°C
170–180°C
Pre-heat
Solder Melt
120 sec.
100 sec.
Stage
Temperature Profile
Time (maximum)
Pre-heat
170 ~ 180 C
120 sec.
Solder Melt
Above 230 C
100 sec.
Peak
260 C maximum
30 sec.
Notes:
1.
Do not pull a vacuum over the port hole of the microphone. Pulling a
vacuum over the port hole can damage the device.
2.
Do not board wash after the reflow process. Board washing and
cleaning agents can damage the device. Do not expose to ultrasonic
processing or cleaning.
3.
Number of Reflow = recommend no more than 3 cycles.
12. ADDITIONAL NOTES
(A)
(B)
(C)
(D)
Packaging (reference SiSonic_Packaging_Spec.pdf)
Shelf life: Twelve (12) months when devices are to be stored in factory supplied, unopened
ESD moisture sensitive bag under maximum environmental conditions of 30ºC, 70% R.H.
Exposure: Devices should not be exposed to high humidity, high temperature environment.
MSL (moisture sensitivity level) Class 2.
Out of bag: Maximum of 90 days out of ESD moisture sensitive bag, assuming maximum
conditions of 30ºC/70% R.H.
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
8 of 10
SPM0208HE5
13. RELIABILITY SPECIFICATIONS
Note: After test conditions are performed, the sensitivity of the microphone shall not deviate more
than 3dB from its initial value.
Test
Description
Thermal Shock
Microphone unit must operate when exposed to air-to-air thermal shock 100 cycles,
from –40ºC to +125ºC. (IEC 68-2-4),
High Temperature Storage
Test
Microphone unit must maintain sensitivity after storage at +105ºC for 1,000 hours. (IEC
68-2-2 Test Ba)
Low Temperature Storage
Test
Microphone unit must maintain sensitivity after storage at –40ºC for 1,000 hours. (IEC
68-2-1 Test Aa)
High Temperature Operating
Test
Microphone unit must operate within sensitivity specifications for 1,000 hours at 105ºC.
(IEC 68-2-2 Test Ba)
Low Temperature Operating
Test
Microphone unit must operate within sensitivity specifications for 1,000 hours at –40ºC.
(IEC 68-2-1 Test Aa)
Humidity Test
Tested under Bias at 85ºC/85% R.H. for 1,000 hours. (JESD22-A101A-B)
Vibration Test
Microphone unit must operate under test condition: 4 cycles, from 20 to 2,000 Hz in
each direction (x,y,z), 48 minutes, using peak acceleration of 20 G (+20%, -0%). (MIL
883E, method 2007.2, A)
Electrostatic Discharge
Tested to 8kV direct contact discharge to the case and tested to 2kV direct contact to
I/O terminals.
Reflow
Microphone is tested to 5 passes through reflow oven, with microphone mounted
upside-down under conditions of 260ºC for 30 seconds maximum.
Mechanical Shock
Microphone must operate after exposure to shock test of 10,000 G per IEC 68-2-27, Ea.
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
9 of 10
SPM0208HE5
14. SPECIFICATION REVISIONS
Revision
Detailed Specification Changes
Date
A
Preliminary Specification Release
06-10-2006
B
Specification Release
08-03-2006
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 existing patents. This supersedes and voids all previous literature.
Knowles Acoust ics, a division of Knowles
Elect r onics, LLC.
Revision: B
10 of 10