The SPH1878L R5HC is a high-performance. bottom port analog silion microphone, supporting both single ended and dfferential modes. Using Knowles' proven high performance SiSonic" MEMS technology, the SPH1878L R5HC consists of an acoustic sensor, a bw noise input buffer, and an output amplifier. The microphone meets the AEC-Q100/103 quality standard, making it it ideal for automotive applications. The microphone has a flat frequency response with low LFRO and phase distortion enabling superior noise cancelling algorithm performance Its high, 67dB(A) SNR and 134 dB SPL AOP provides a large, distortionfree dynamic range for high-quality voice pickup.The SPH1878LR5HC also provides a tighter sensitivity ditribution to improve beam forming applications.