SPM1423HM4H-B

SPM1423HM4H-B Digital High-SNR SiSonicTM Microphone The SPM1423HM4H-B is a miniature, highperformance, low power, top port silicon digital microphone with a single bit PDM output. Using Knowles’ proven high performance SiSonicTM MEMS technology, the SPM1423HM4H-B consists of an acoustic sensor, a low noise input buffer, and a sigma-delta modulator. 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 audio performance and RF immunity are required. The increased sensitivity and high Signal-to-Noise-Ratio (SNR) of the SPM1423HM4H-B also enhances the performance of far-field applications and many complex, multimicrophone algorithms. Features: Low Noise High Sensitivity Low Current RF Shielded PDM Output Supports Dual Multiplexed Channels Ultra-Stable Performance Standard SMD Reflow Omnidirectional Revision: D Sheet 1 of 13 6/18/2013 ©2013 Knowles Electronics SPM1423HM4H-B 1. ABSOLUTE MAXIMUM RATINGS Parameter VDD, DATA to Ground CLOCK to Ground SELECT to Ground Input Current Short Circuit Current to/from DATA Temperature Range Absolute Maximum Rating -0.3, +5.0 -0.3, +5.0 -0.3, +5.0 ±5 Indefinite to Ground or VDD -40 to +100 Units V V V mA sec °C Stresses exceeding these “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation at these ...