Document: SP0103N
Last Revision Date: 09-2003
Product Specification: SP0103 Series with Integrated Amplifier
This document applies the following SiSonic Model Numbers:
SP0103NC3-2
SP0103NC3-3
SiSonic microphone with integrated amplifier offers designers
numerous features: up to 20dB gain, surface-mountable, compatible
with standard solder reflow, pick-and-place with standard high speed
automated equipment, low output impedance, and excellent
environmental characteristics. External amplifiers amplify both
signal and external noise induced in the circuit, compared to SiSonic
SP0103 that amplifies the signal prior to external noise.
Microphone Dimensional Layout
Microphone Pin Output
Item
Dim.
Tol.
(+/-)
Units
Height
1.45
0.15
mm
Length
6.15
0.05
mm
Width
3.76
0.05
mm
Weight
< 0.5
grams
Coplanarity
< 0.1
mm
Recommended PCB
Land Layout
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Document: SP0103N
Last Revision Date: 09-2003
Product Specifications Test Conditions: +20ºC, 60-70% R.H.
Limits
Symbol
Directivity
Condition
Nom.
Max.
-26
-22
-18
dB
100
Ω
0.350
mA
Omni-directional
Sensitivity
S
@ 1kHz (0dB=1V/Pa) where
R3=0Ω, C1=0.47uF
Output impedance
ZOUT
@ 1kHz (0dB=1V/Pa)
Current Consumption
IDSS
across 1.5 to 5.5 volts
0.100
Signal to Noise Ratio
S/N
@ 1kHz (0dB=1V/Pa)
55
Typical Input Referred
Noise
ENL
A-weighted
Supply Voltage
Vs
Sensitivity Loss across
Voltage
Maximum Input Sound
Level
Unit
Min.
1.5
Change in sensitivity over
5.5v to 1.5v
59
dB
35
dBA SPL
5.5
V
No Change Across
Voltage Range
dB
At 100dB SPL, THD < 1%
At 115dB SPL, THD < 10%
dB
Operating
Temperature
-40
+100
ºC
Storage Temperature
-40
+100
ºC
Frequency Range
100 – 10,000
Hz
Frequency Response Curve
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Document: SP0103N
Last Revision Date: 09-2003
Packaging Specifications
Carrier – Tape Detail
Model
Number
Suffix
Reel
Diameter
Qty
per
Reel
Capacitor
Config.
SP0103NC3
-2
7”
1,200
10 & 33pF
SP0103NC3
-3
13”
4,500
10 & 33pF
NOTE: All devices are lead-free and compatible with leadfree reflow profile.
Solderability Characteristics
Tape &
Reel
Available in 7” or 13” diameter.
Leader
Length
800mm or minimum of 100
empty pockets
Label
Label applied to external
package and direct to reel. Per
JEDEC.
Storage
Life
1 year storage (original
packaging, low humidity)
Polarity of
part
“L” – direction
(** No board washing after reflow **)
Solder Reflow
260ºC for maximum 30 seconds
Terminal Pads
Gold (27u”) over Nickel (150u”) Typical
# of Reflow Passes
reference Reliability section
Solder Reflow Profile
(Maximum Conditions)
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Document: SP0103N
Last Revision Date: 09-2003
Reliability
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 16
hours at 105ºC. (IEC 68-2-2 Test Ba)
Low Temperature
Operating Test
Microphone unit must operate within sensitivity specifications for 16
hours at –40ºC. (IEC 68-2-1 Test Aa)
Humidity Test
Tested under Bias at 85ºC/85% R.H. for 270 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 20g (+20%, -0%). (MIL 883E, method 2007.2, A)
Electrostatic
Discharge
Tested to 8kV direct contact discharge or 15kV air discharge as specified
by IEC 1000-4-2, level 3 and level 4.
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
Tested to greater than 5,000g (IEC 68-2-27, Ea).
Note:
After test conditions are performed, the sensitivity of the microphone
shall not deviate more than 3dB from its initial value.
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Document: SP0103N
Last Revision Date: 09-2003
Recommended Interface Circuit for SP0103N Integrated Amplifier
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)
Desired Gain
Pin 2 Termination Method
Unity Gain (0dB)
Tie Terminal 2 directly to Output (Terminal 1).
20dB Gain
Tie Terminal 2 through C1 (0.47uF) to Ground.
Adjustable Gain
Add R3 and C1. Use formulas provided to calculate
settings, or contact Knowles for support.
Setting Gain Formulas:
Gain of non-inverting Op-Amp is determined as:
G=1+ {R1 / (R2 + R3)}
Gain(dB) = 20 * log(G)
High-pass-filter Corner Frequency:
C.F. = 1 / {2*pi*(R2 + R3) * C1}
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