SPM0204UD5 - ETC

SPM0204UD5 ULTRASONIC ACOUSTIC SENSOR

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° C to +.

Features

L 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 www.DataSheet4U.com 20,000 30,000 4.