SPM0103ND3
Amplified “Mini” SiSonic™ Microphone Specification
Knowles Acoustics
1151 Maplewood Drive Itasca, IL 60143
Knowles Acoustics, a division of Knowles Electronics, LLC.
Revision: C 1 of 10
SPM0103ND3
1. DESCRIPTION AND APPLICATION
1.1 Description Amplified “Mini” Surface Mount Silicon Microphone with standard RF Protection 1.2 Application Hand held telecommunication devices
2. PART MARKING
Identification Number Convention
S 4 Identification Number 1 5 2 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 Acoustics, a division of Knowles Electronics, LLC.
Revision: C 2 of 10
SPM0103ND3
4. ACOUSTIC & ELECTRICAL SPECIFICATIONS
Limits Symbol Condition Min. Nom. Max. Unit
Directivity Sensitivity Output impedance Current Consumption Signal to Noise Ratio Supply Voltage Typical Input Referred Noise Sensitivity Loss across Voltage Maximum Input Sound Level S ZOUT IDSS S/N Vs ENL
Omni-directional @ 1kHz (0dB=1V/Pa) @ 1kHz (0dB=1V/Pa) across 1.5 to 5.5 volts @ 1kHz (0dB=1V/Pa) -26 n/a 0.100 55 1.5 A-weighted Change in sensitivity over 5.5v to 1.5v n/a -22 n/a n/a 59 n/a 35 -18 100 0.350 n/a 5.5 n/a dB Ω mA dB V
dBA SPL
No Change Across Voltage Range
dB
dB
At 100dB SPL, THD < 1% At 115dB SPL, THD = < 10%
5. FREQUENCY RESPONSE CURVE
Knowles Acoustics, a division of Knowles Electronics, LLC.
Revision: C 3 of 10
SPM0103ND3
6. MECHANICAL SPECIFICATIONS
Pin Output
Pin # 1 2 3 4 Function
Item Height
Dim. 1.50 4.72 3.76 0.84 1.32 1.88 0.08
