KNOWLES

KNOWLES – Digital MEMS microphones

Model Picture Digital Interface Dimensions (mm) Sound Port Sensitivity (dB FS) SNR (dBA) (Note1) AOP (dB SPL) Comments
SPH0641LM4H-1 PDM 3.50 x 2.65 x 0.98 Bottom -26.0±1 64.3 120 dB SPL Multi-mode / High SNR
SPH0641LU4H-1 PDM 3.50 x 2.65 x 0.98 Bottom -26.0±1 64.3 120 dB SPL Multi-mode / Ultrasonic
SPH0644HM4H-1 PDM 3.50 x 2.65 x 0.85 Top -36.0±1 58.0 131 dB SPL Multi-mode
SPH0644LM4H-1 PDM 3.50 x 2.65 x 0.98 Bottom -37.0±1 65.5 132.5 dB SPL Multi-mode / High SNR
SPH0645LM4H I2S 3.50 x 2.65 x 0.98 Bottom -26.0±3 65.0 120 dB SPL Multi-mode / High SNR
SPK0641HT4H-1 PDM 4.00 x 3.00 x 1.00 Top -26.0±1 64.5 120 dB SPL Multi-mode / High SNR
SPK0838HT4H PDM 4.00 x 3.00 x 1.00 Top -26.0±3 64.0 121 dB SPL Multi-mode / Flat freq. Response