Dual-chip MEMS Microphone


3S is the first company in Taiwan to successfully design and mass produce MEMS microphone chips. The dual-chip MEMS microphone is packaged with a microphone sensor chip that is fabricated by a dedicated MEMS process, and a pre-amplifier ASIC that is fabricated by a standard CMOS process. The product features high SNR(Signal-to-Noise Ratio) as well as high AOP(Acoustic Overload Point) and is widely adapted in a variety of human-machine interaction devices that require voice capture, voice recognition, and feedback active noise canceling headphones.

 

3S offers both analog output type and digital output type dual-chip MEMS microphones which can be easily adapted by smart phones, smart speakers, notebooks, Bluetooth headsets, TVs,… etc. All MEMS microphones offered by 3S have passed various acoustic characteristics and reliability tests. The products have excellent acoustic characteristics and reliable quality. 3S is one of the few companies in the world that are capable of designing and mass producing a full range of MEMS microphone sensor chips and pre-amp ASIC and MEMS microphone products.

IC Name Description SNR Sensitivity Supply Voltage Supply Current Dimensions Port Location
3SM123C4T1UB Analog 57 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.95 x 1.10mm Top
3SM123HZB1UC Analog 62 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 3.00 x 1.10mm Bottom
3SM123HZB1HA Analog 62 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.50 x 2.65 x 0.98mm Bottom
3SM122E4T1VA Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 2.75 x 1.85 x 0.95mm Top
3SM122E4T1QA Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.24 x 1.10mm Top
3SM123GZB1VA Analog 61.5 dB -38±1 dBV 1.6 to 3.6 V 80 uA 2.75 x 1.85 x 0.90mm Bottom
3SM123GZB1VD Analog 61.5 dB -38±1 dBV 1.6 to 3.6 V 80 uA 2.75 x 1.85 x 0.90mm Bottom
3SM123C4T1VA Analog 57 dB -42±1 dBV 1.6 to 3.6 V 80 uA 2.75 x 1.85 x 0.95mm Top
3SM123C4T1QA Analog 57 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.24 x 1.10mm Top
3SM123E4T1VA-002 Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 2.75 x 1.85 x 0.95mm Top
3SM123E4T1UB-002 Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.95 x 1.10mm Top
3SM121JZB1HA Analog 63 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.50 x 2.65 x 0.98mm Bottom
3SM121E4T1UA Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.95 x 1.10mm Top
3SM121E4T1UB Analog 59 dB -42±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.95 x 1.10mm Top
3SM121LZT1UA Analog 65 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 2.95 x 1.10mm Direct-top
3SM121LZB1UB Analog 65 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 3.00 x 1.10mm Bottom
3SM121MZB1UA Analog 66 dB -38±1 dBV 1.6 to 3.6 V 80 uA 3.76 x 3.00 x 1.10mm Bottom
3SM121PZB1MB Analog 68 dB -38±1 dBV 1.6 to 3.6 V 80 uA 4.72 x 3.76 x 1.20mm Bottom
3SM121RZB1MA Analog 70 dB -38±1 dBV 1.6 to 3.6 V 80 uA 4.72 x 3.76 x 3.40mm Bottom
3SM221FMT1KA Digital 60 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 3.00 x 1.06mm Top
3SM221KMT1KA Digital 64 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 3.00 x 1.00mm Direct-top
3SM221FMT1GA Digital 60 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 2.00 x 1.10mm Top
3SM221KMT1GA Digital 64 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 2.00 x 1.10mm Top
3SM222FMT1KA Digital 60 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 3.00 x 1.06mm Top
3SM222KMT1KA Digital 64 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 3.00 x 1.00mm Direct-top
3SM222KMB1KA Digital 64 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 4.00 x 3.00 x 1.00mm Bottom
3SM222FMT1HA Digital 60 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 3.50 x 2.65 x 0.85mm Top
3SM222KMB1HA Digital 64 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 3.50 x 2.65 x 0.98mm Bottom
3SM222HMB1HA-002 Digital 62 dB -26±1 dBFS 1.6 to 3.6 V 650 uA 3.50 x 2.65 x 0.98mm Bottom