SPM0204UD5

SPM0204UD5 ULTRASONIC ACOUSTIC SENSOR Knowles Acoustics, a division of Knowles Electronics, LLC Revision: PRELIMINARY Page 1 of 9 SPM0204UD5 1. DESCRIPTION AND APPLICATION 1.1. Description Surface Mount Wide-Band Ultrasonic Acoustic Sensor 1.2. Applications Hand held telecommunication devices, Positioning Sensing, Pneumatic Flow Sensing 2. PART MARKING Tracking Number Convention S: 1-6: Manufacturing Location Job Identification Number S123456 3. TEMPERATURE RANGE 3.1. Operating Temperature Range: -40° to +100° C C 3.2. Storage Temperature Range: -40° to +100° C C Knowles Acoustics, a division of Knowles Electronics, LLC Revision: PRELIMINARY Page 2 of 9 SPM0204UD5 4. ACOUSTIC AND ELECTRICAL SPECIFICATIONS Symbol Directivity Frequency Range Sensitivity Output impedance Current Consumption Signal to Noise Ratio Supply Voltage Typical Input Referred Noise Sensitivity Loss across Voltage Maximum Input Sound Level f S ZOUT IDSS S/N Vs ENL A-weighted @ 1kHz (0dB=1V/Pa) @ 1kHz (0dB=1V/Pa) across 1.5 to 3.6 volts @ 1kHz (0dB=1V/Pa) Condition Omni-directional 10k -51 n/a 0.100 55 1.5 n/a -47 n/a n/a 59 n/a 35 65k -43 300 0.250 n/a 3.6 n/a Hz dB Ω Min. Limits Nom. Max. Unit mA dB V dBA SPL dB dB Change in sensitivity over 3.6v to No Change Across Voltage 1.5v Range At 100dB SPL, THD < 1% At 115dB SPL, THD = < 10% 5. FREQUENCY RESPONSE CURVE Knowles Acoustic MEMS Ultrasonic Sensor Frequency Response (Nominal Sensativity 0 = -47dBv/Pa) 30 20 10 M agnitude (dB) 0 -10 -20 -30 10,000 20,000 30,000 40,000 Frequency(Hz) 50,000 60,000 Knowles Acoustics, a division of Knowles Electronics, LLC Revision: PRELIMINARY Page 3 of 9 SPM0204UD5 6. MECHANICAL SPECIFICATIONS Acoustic Port Mesh £ © ¤¢ ¦£  ¤¢    $!  Item (H) Height (L) Length (W) Width Acoustic Area (AW) Width (AL) Length W eight Coplanarity Dim. 1.40 4.72 3.76 Tol. (+/-) 0.10 0.10 0.10 Units mm mm mm PIN Designation Pin # Function 1 Output 2 Ground 3 Ground 4 Power 2.95 3.12 0.07