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. (+/)
Unit
Height
1.45
0.15
mm
Length
6.15
0.05
mm
Width
3.76
0.05
mm
Weight
~0.09
Coplanarity
< 0.1
grams
mm
Recommended PCB
Land Layout
Knowles Acoustics
www.knowlesacoustics.com
Rev H
SP0103NC3
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
No Change Across Voltage
Range
At 100dB SPL, THD < 1%
At 115dB SPL, THD < 10%
V
dB
dB
Operating Temperature
-40
+100
ºC
Storage Temperature
-40
+100
ºC
Frequency Range
100 – 10,000
Hz
Frequency Response Curve
Knowles Acoustics
www.knowlesacoustics.com
Rev H
SP0103NC3
Packaging Specifications
Carrier – Tape Detail
Model Number
Suffix
Reel
Diameter
Qty per Reel
SP0103NC3
-2
7”
1,200
SP0103NC3
-3
13”
4,500
NOTE: All devices are lead-free and compatible with lead-free
reflow profile.
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
Solderability Characteristics
Solder Reflow
260ºC for maximum 30 seconds
Conditions:
Do not board wash after reflow.
Do not pull vacuum directly over acoustic port hole.
Reflow Profile (Maximum
Conditions)
Knowles Acoustics
www.knowlesacoustics.com
Rev H
SP0103NC3
Reliability
Note: After test conditions are performed, the sensitivity of the microphone shall not deviate more than 3dB
from its initial value.
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 under conditions of 260ºC for
30 seconds maximum.
Mechanical Shock
Tested to 5,000g (IEC 68-2-27, Ea).
Knowles Acoustics
www.knowlesacoustics.com
Rev H
SP0103NC3
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}
Knowles Acoustics
www.knowlesacoustics.com
Rev H
SP0103NC3