新製品
New Product
High-performance MEMS Microphone Unit
Hosiden has developed a high-performance MEMS microphone unit for the smartphone and headphone markets.
Compared to our conventional products, we have greatly improved the SNR (sound-to-noise ratio) and response at low-frequencies with no compromise to the low THD (total harmonic distortion) characteristics. Achieving a flat response in the low frequency band allows effective recording of low-pitched sounds, which can be also leveraged for noise cancelling in this region.
This module’s SNR and THD characteristics are now at an industry-leading level. There is also an energy-saving selectable low power consumption mode.
Product Name and Model Number
Product name, product No.：Analog MEMS microphone unit KRM5400-010010
Product name, product No.：Digital ＭＥＭＳ microphone unit KRM5403-010010
Typical Features
・Compact size (dimensions (mm): 4.0 x 3.0 x 1.5 thick), with industry-leading high SNR and low THD
・Energy-saving low power consumption mode is also available
・SNR comparison with Hosiden current products:
KRM5400 (current, analog) 70dB → KRM5400 (released, analog) 74dB:
4dB improvement.
KRM5403 (current, digital) 69dB → KRM5403 (released, digital) 72dB:
3dB improvement.
Application
-
Smartphones/Noise cancelling headphones/Digital cameras, and much more
Production and Sales Plan
| Sample production | Available |
|---|---|
| Sales start |
Second quarter, 2021 |
| Planned monthly production |
2 million pcs |
| Sample price | To be announced |
Main Specifications
|
Product nameProduct No. |
Analog MEMS microphone unit |
Digital MEMSmicrophone unit |
|---|---|---|
| External Dimensions | 4.0 × 3.0 × t1.5 (mm) | 4.0 × 3.0× t1.5 (mm) |
| Sensitivity | -38±1dB (V/Pa) | -36±1dBFS(V/Pa) |
| Low frequency roll-off | -1dB (Typ.) at 30Hz (1kHz standard) | -1dB (Typ.) at 30Hz (1kHz standard) |
| S/N ratio | 74dB (Typ.) | 72dB (Typ.) |
| Distortion | 3%(Typ.)at 130dBSPL/1kHz | 4%(Typ.)at 129dBSPL/1kHz |
| Power consumption |
Standard mode: 160μA (Typ.) Low power mode: 60μA (Typ.) |
Standard mode: 1mA (Typ.) Low power mode: 300μA (Typ.) Sleep mode: 5μA (Typ.) |
| Clock frequency | - |
Standard mode: 3.072MHz (2.2 to 3.3MHz) Low power mode: 768kHz |
| Output | - | PDM |
