SPH0641LU4H-1 TM Digital Zero-Height SiSonic Microphone With Multi-Mode And Ultrasonic Support The SPH0641LU4H-1 is a miniature, high- Features: performance, low power, bottom port High SNR of 64dB silicon digital microphone with a single bit Low Current Consumption of 235uA in PDM output. Using Knowles proven high Low-Power Mode TM performance SiSonic MEMS technology, Multiple performance modes (Sleep, the SPH0641LU4H-1 consists of an acoustic Low-Power, Standard Performance and sensor, a low noise input buffer, and a Ultrasonic Modes) sigma-delta modulator. This microphone is Flat Frequency Response suitable for applications such as cellphones, RF Shielded TM smart phones, laptop computers, sensors, Zero-Height Mic digital still cameras, portable music Supports Dual Multiplexed Channels recorders, and other portable electronic Standard SMD Reflow devices where excellent wideband audio Omnidirectional performance and RF immunity are required. Ultrasonic Support In addition, the SPH0641LU4H-1 offers Sensitivity Matching multiple performance modes and supports Small Size ultrasonic applications. Revision: A 5/16/2014 Sheet 1 of 15 2014 Knowles Electronics SPH0641LU4H-1 1. ABSOLUTE MAXIMUM RATINGS Parameter Absolute Maximum Rating Units V , DATA to Ground -0.3, +5.0 V DD CLOCK to Ground -0.3, +5.0 V SELECT to Ground -0.3, +5.0 V Input Current 5 mA Short Circuit Current to/from DATA Indefinite to Ground or V sec DD Temperature Range -40 to +100 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 2C, 5520% R.H., V =1.8 V, f =2.4 MHz, SELECT pin grounded, no load, unless DD CLOCK otherwise indicated General Microphone Specifications Parameter Symbol Conditions Min Typ Max Units Supply Voltage V 1.62 - 3.6 V DD Sleep Mode 0 250 KHz Low-Power Mode 351 815 KHz Clock Frequency Standard 1.024 2.475 MHz Range Performance Mode Ultrasonic Mode 3.072 4.8 MHz 1,3 Sleep Current I f 250 kHz - 80 A SLEEP CLOCK DC Output Fullscale = 100 - 0 - % FS Directivity Omnidirectional Increasing sound Polarity Increasing density of 1s pressure Data Format Cycle PDM Short Circuit Current I Grounded DATA pin 1 - 20 mA SC Output Load C - - 140 pF LOAD 4,5 Fall-asleep Time f 250 kHz - - 10 ms CLOCK 4,6 Wake-up Time f 351 kHz - - 15 ms CLOCK 4,6 Power-up Time V V(min) - - 50 ms DD 4 Mode-Change Time - - 10 ms Revision: A 5/16/2014 Sheet 2 of 15 2014 Knowles Electronics