ホシデン

2024/12/17

NewProduct List

NewProduct_FY2024

High-performance Compact Digital MEMS Microphone KRM5903

[Overview and Design Intentions]

Hosiden has realized further downsizing and improved performance for its current mainstream
MEMS microphones(KRM5603), with external dimensions of just 3 mm × 2 mm × t0.98 m.

・A volume reduction of approx. 35%

・Lower current consumption: Down to 0.5 mA Typ. (reduced by approx. 27% compared to the model KRM5603)

・High SNR and low distortion

Product Name and Model Number

[Product Name]

・Digital MEMS microphone

[Model Number]

・KRM5903-010010

[Features]

・Low current consumption (0.5 mA Typ.)

・Compact size, high SNR, a flatter response at low frequencies, and low distortion

[Applications]

・Optimum performance for ANC (Active Noise Control) for headphones

・Smartphones, DSCs, and DVCs

Production and Sales Plan

Sample start	In progress
Sales start	March 2025
Planned monthly production	1 to 2 million pieces
Sample price	To be determined

[Main Specifications]

Product No.	KRM5603-011010 (Current)	KRM5903-010010 (New)
Dimensions	3.5 x 2.65 x t0.98 mm	3.0 x 2.0 x t0.98 mm
Power voltage	1.8 V	1.8 V
Clock frequency	Standard Mode： 2.4 MHz Low Power Mode： 768 kHz	Standard Mode： 3.072 MHz Low Power Mode： 768 kHz
Output format	PDM
Sensitivity	-36 ± 1 dBFS/Pa (1 kHz)	-36 ± 1 dBFS/Pa (1 kHz)
SNR	65 dB(A) Typ.	67.5 dB(A) Typ.
Current consumption	Standard Mode： 0.68 mA Typ. Low Power Mode： 0.3 mA Typ. Standby Mode： 25 µA Typ.	Standard Mode： 0.5 mA Typ. Low Power Mode： 0.17 mA Typ. Standby Mode： 5 µA Typ.
Distortion factor	10 % Max. at 130 dBSPL (1 kHz)	10 % Typ. at 127 dBSPL (1 kHz)