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SPUL409HE5H-PB Dataheets PDF



Part Number SPUL409HE5H-PB
Manufacturers Knowles Electronics
Logo Knowles Electronics
Description SiSonic Microphone
Datasheet SPUL409HE5H-PB DatasheetSPUL409HE5H-PB Datasheet (PDF)

SPUL409HE5H-PB SiSonicTM Microphone With Enhanced RF Protection The SPUL409HE5H-PB is a miniature, highperformance, low power, top port silicon microphone. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPUL409HE5H-PB consists of an acoustic sensor, a low noise input buffer, and an output amplifier. These devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable el.

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SPUL409HE5H-PB SiSonicTM Microphone With Enhanced RF Protection The SPUL409HE5H-PB is a miniature, highperformance, low power, top port silicon microphone. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPUL409HE5H-PB consists of an acoustic sensor, a low noise input buffer, and an output amplifier. These devices are suitable for applications such as cellphones, smart phones, laptop computers, sensors, digital still cameras, portable music recorders, and other portable electronic devices where excellent wideband audio performance and RF immunity are required. Features:  Enhanced RF protection  Small package  Ultra-Stable Performance  Standard SMD Reflow  Omnidirectional Revision: I Sheet 1 of 11 3/27/2013 ©2013 Knowles Electronics SPUL409HE5H-PB 1. ABSOLUTE MAXIMUM RATINGS Parameter VDD to Ground OUT to Ground Input Current to Any Pin Temperature Range Absolute Maximum Rating -0.5, +5.0 -0.3, VDD + 0.3 ±5 -40 to +100 Units V V mA °C Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation at these or any other conditions beyond those indicated under “Acoustic & Electrical Specifications” is not implied. Exposure beyond those indicated under “Acoustic & Electrical Specifications” for extended periods may affect device reliability. 2. ACOUSTIC & ELECTRICAL SPECIFICATIONS TEST CONDITIONS: 23 ±2°C, 55±20% R.H., VDD(min) < VDD < VDD(max), no load, unless otherwise indicated Parameter Symbol Conditions Min Typ Max Units Supply Voltage1 VDD 1.5 - 3.6 V Supply Current1,2 IDD - 145 190 µA Sensitivity1 S 94 dB SPL @ 1 kHz -45 -42 -39 dBV/Pa Signal to Noise Ratio Total Harmonic Distortion Acoustic Overload Point DC Output Output Impedance Directivity SNR THD AOP ZOUT 94 dB SPL @ 1 kHz, A-weighted 94 dB SPL @ 1 kHz, S = Typ, Rload > 2 k 10% THD @ 1 kHz, S = Typ, VDD = 3.6V, Rload > 2 k VDD = 1.5V @ 1 kHz - 59 - dB(A) --1 % 115 - - dB SPL - 0.84 - V - - 300  Omnidirectional Polarity Increasing sound pressure Decreasing output voltage 1 100% tested. 2 Maximum specifications are measured at maximum VDD. Typical specifications are measured at VDD = 1.8V. Revision: I Sheet 2 of 11 3/27/2013 ©2013 Knowles Electronics SPUL409HE5H-PB 3. FREQUENCY RESPONSE CURVE Sensitivity (dB) 20 18 16 14 12 10 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 100 Typical Free Field Response Normalized to 1 kHz 1,000 Frequency (Hz) 10,000 Revision: I Sheet 3 of 11 3/27/2013 ©2013 Knowles Electronics SPUL409HE5H-PB 4. INTERFACE CIRCUIT VDD .1f VDD OUTPUT RS RF Dotted Section Represents SiSonicTM Microphone GROUND VREF External Gain = -RF/RS (Set By User) Note: All Ground pins must be connected to ground. Capacitors near the microphone should not contain Class 2 dielectrics. Detailed information on acoustic, mechanical, and system integration can be found in the latest SiSonicTM Design Guide application note..


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